{"id":21695,"date":"2026-08-22T14:24:37","date_gmt":"2026-08-22T12:24:37","guid":{"rendered":"https:\/\/migflug.com\/?page_id=21695"},"modified":"2026-08-22T14:27:12","modified_gmt":"2026-08-22T12:27:12","slug":"heinkel-he-51","status":"publish","type":"page","link":"https:\/\/migflug.com\/ar\/aircraft\/heinkel-he-51\/","title":{"rendered":"Heinkel He 51"},"content":{"rendered":"<div id=\"mfam\">\n<style> html{overflow-x:hidden} body.page-id-21695{overflow-x:hidden} body.page-id-21695 h1.entry-title.main_title{display:none} body.page-id-21695 #sidebar{display:none} body.page-id-21695 #left-area{width:100%!important;float:none;padding:0} body.page-id-21695 #main-content .container::before{display:none!important;background:none!important} body.page-id-21695 #main-content .container{padding-top:0} #mfam{width:100vw;margin-left:calc(50% - 50vw);overflow:hidden;font-family:'Gilroy regular',Helvetica,Arial,sans-serif;color:#0d1117;background:#fff;line-height:1.65;font-size:17px} #mfam 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a.ctabtn:hover{background:#5C91FF;border-color:#5C91FF;text-decoration:none} #mfam .ctacard{flex:1;min-width:240px;background:#111a26;border:1px solid #26344a} #mfam .ctacard .cc{padding:22px 22px 24px} #mfam .ctacard h3{color:#fff;font-size:18px;margin:0 0 8px} #mfam .ctacard p{color:#c6d2e6;font-size:14.5px;margin:0 0 14px} #mfam .ctanote{font-size:13.5px;color:#8794a6;margin-top:18px} #mfam .relgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:6px} #mfam .relgrid>p{display:contents} #mfam a.rel{display:block;border:1px solid #e2e7ee;padding:22px 22px;background:#fff;color:#0d1117} #mfam a.rel:hover{border-color:#5C91FF;text-decoration:none} #mfam a.rel span.rt{display:block;font-family:'Gilroy semiBold';font-size:18px;margin-bottom:6px} #mfam a.rel span.rk{display:block;font-size:12px;letter-spacing:1px;text-transform:uppercase;color:#5C91FF;margin-bottom:10px} #mfam a.rel span.rd{display:block;font-size:14.5px;color:#6a7684} #mfam .sources{columns:2;column-gap:34px;margin-top:6px} #mfam .sources .src{break-inside:avoid;margin:0 0 16px;font-size:14.5px;color:#39424e} #mfam .sources .src b{font-family:'Gilroy semiBold';display:block;color:#0d1117} #mfam .foot{font-size:13px;color:#8794a6;margin-top:26px;border-top:1px solid #e2e7ee;padding-top:18px;max-width:820px} @media(max-width:900px){#mfam .eng,#mfam .rec,#mfam .relgrid{grid-template-columns:1fr 1fr}#mfam .spectbls{grid-template-columns:1fr;gap:22px}#mfam .gallery{grid-template-columns:repeat(2,1fr)}#mfam .hero h1{font-size:42px}#mfam .sources{columns:1}} @media(max-width:600px){#mfam .eng,#mfam .rec,#mfam .relgrid{grid-template-columns:1fr}#mfam .hero h1{font-size:34px}#mfam .hero{min-height:74vh}#mfam h2{font-size:25px}#mfam .scard{flex:0 0 84vw}} <\/style>\n<section class=\"hero\">\n<div class=\"hero-inner\">\n<div class=\"brd\"><a href=\"https:\/\/migflug.com\/aircraft\/\">Book of Beasts<\/a> &nbsp;\/&nbsp; Interwar Fighters &nbsp;\/&nbsp; Heinkel He 51<\/div>\n<h1>Heinkel He 51<\/h1>\n<p class=\"claim\">The biplane that made the Luftwaffe a fighter force &mdash; and was already out of date the day it arrived. Germany&rsquo;s first operational fighter, and its first hard lesson in Spain.<\/p>\n<div class=\"statstrip\">\n<div class=\"stat\"><b>1933<\/b><span>First flight<\/span><\/div>\n<div class=\"stat\"><b>1935<\/b><span>Luftwaffe&rsquo;s first fighter<\/span><\/div>\n<div class=\"stat\"><b>~330 km\/h<\/b><span>Top speed (~205 mph)<\/span><\/div>\n<div class=\"stat\"><b>~700<\/b><span>Built (figures vary)<\/span><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"wrap\">\n<div class=\"chips\"><span class=\"chip\"><b>Role:<\/b> Single-seat biplane fighter<\/span><span class=\"chip\"><b>Era:<\/b> Interwar &amp; early WWII (1933&ndash;1940s)<\/span><span class=\"chip\"><b>Engine:<\/b> BMW VI V-12<\/span><span class=\"chip\"><b>Origin:<\/b> Germany<\/span><span class=\"chip\"><b>Status:<\/b> Retired &middot; museum reproductions<\/span><a class=\"chip-fly\" href=\"#faq\">Can you fly a Heinkel He 51 today?<\/a><\/div>\n<\/section>\n<section class=\"sec\">\n<div class=\"wrap\">\n<p class=\"kick\">The Story<\/p>\n<h2>The Heinkel He 51: the Luftwaffe&rsquo;s first fighter, obsolete on arrival<\/h2>\n<div class=\"story\">\n<p>When Germany began openly rebuilding an air force in the mid-1930s, in defiance of the Treaty of Versailles, it needed a fighter to put in the shop window. The aircraft it chose was the Heinkel He 51 &mdash; a neat, single-bay biplane with a big inline engine, two machine guns and a look that would have been thoroughly at home over the Western Front fifteen years earlier. That is the paradox at the heart of the He 51. It was the machine that gave the new Luftwaffe its first fighter squadrons, and it was already a generation behind the aircraft that would decide the next war.<\/p>\n<p>The design came from the drawing boards of Siegfried and Walter G&uuml;nter, Heinkel&rsquo;s gifted young engineers, who developed it from the earlier He 49. The prototype first flew in 1933, and in 1935 the He 51 entered service as the Luftwaffe&rsquo;s first operational fighter, equipping the famous Jagdgeschwader 132 &ldquo;Richthofen&rdquo;. For a brief moment it was a genuine source of national pride: modern-looking, well-built, pleasant to fly, and paraded at every opportunity as proof that Germany was once again an air power to be reckoned with.<\/p>\n<p>To understand why the Luftwaffe accepted an aircraft that was already conceptually dated, it helps to remember the pressure of the moment. Germany had been without a legal air force since 1918, and when rearmament began there was an overwhelming need to field <em>something<\/em> &mdash; real aircraft to fly, mechanics to train, a production line to prove out. A conservative, buildable biplane like the He 51 met that need far better than a still-experimental monoplane would have.<\/p>\n<p>The trouble is that the future arrived faster than anyone expected. Between the He 51&rsquo;s first flight and its combat debut in Spain, only a handful of years passed &mdash; and in those same years the monoplane fighter went from an interesting idea to a proven reality. An aircraft that looked respectable in 1935 was visibly behind the times by 1937.<\/p>\n<p class=\"pull\">&ldquo;A good aeroplane that arrived at the wrong moment in aviation history.&rdquo;<span>&mdash; a fair summary of the He 51&rsquo;s reputation<\/span><\/p>\n<p>Then it went to war, and the illusion cracked. In 1936 He 51s were shipped to Spain with the Condor Legion, the German force sent to fight for Franco&rsquo;s Nationalists in the Spanish Civil War. At first they held their own. But when the Republicans received Soviet fighters &mdash; the nimble Polikarpov I-15 biplane and, far more seriously, the fast monoplane I-16 &mdash; the He 51 was comprehensively outclassed. It was slower, it climbed worse, and it simply could not catch or escape its opponents. German pilots who expected air superiority found themselves on the wrong end of it.<\/p>\n<p>The Luftwaffe&rsquo;s answer was pragmatic. If the He 51 could no longer win the fight for the sky, it could still be useful closer to the ground. Condor Legion He 51s were switched to ground-attack work, strafing and bombing in support of Nationalist troops &mdash; a role in which a rugged, docile biplane with a pilot willing to press home the attack could still do real damage. Among the young pilots who flew He 51 ground-attack sorties in Spain was Adolf Galland, later one of Germany&rsquo;s most senior fighter commanders. The experience helped shape German ground-attack doctrine for the war to come.<\/p>\n<p>Back home, the writing was already on the wall. The Messerschmitt Bf 109 monoplane reached Spain in 1937 and instantly rendered the biplane fighter obsolete. From 1938 the He 51 was pushed out of front-line service and into the fighter schools, where it spent its final years teaching a new generation of pilots the basics before they moved on to the machines that would actually fight the Second World War. Around 700 were built by Heinkel and a handful of licensees, and a small number reached export operators. The He 51 never became a legend of aerial combat &mdash; but as the aircraft that re-taught Germany how to build and operate a fighter arm, and as an honest early casualty of the monoplane revolution, it earned its place in the story.<\/p>\n<\/div>\n<div class=\"gd\">\n<details>\n<summary><span class=\"gnum\">01<\/span><span class=\"gt\">The Heinkel He 51&rsquo;s origins: from the secret He 49 to Germany&rsquo;s first fighter<\/span><span class=\"gsign\">+<\/span><\/summary>\n<div class=\"gbody\">\n<p>The He 51 did not appear from nowhere. Under the restrictions of the Treaty of Versailles, Germany was forbidden a military air force, so fighter development in the early 1930s was carried out quietly and often under civil or export cover. Heinkel&rsquo;s He 49, first flown in 1932, was the direct ancestor: a clean biplane built around a powerful inline engine, developed by the brothers Siegfried and Walter G&uuml;nter.<\/p>\n<p>The He 51 refined that formula &mdash; a slightly larger, stronger airframe with a metal-framed fuselage, wooden wings and a BMW VI V-12 up front. When the existence of the Luftwaffe was openly announced in 1935, the He 51 was ready to be its first fighter. It was ordered in quantity and produced not only by Heinkel but under licence by Arado, Erla, Fieseler and Ago, which is how a relatively modest design reached a total commonly cited as around 700 aircraft.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary><span class=\"gnum\">02<\/span><span class=\"gt\">The Heinkel He 51 in the Spanish Civil War: from air combat to ground attack<\/span><span class=\"gsign\">+<\/span><\/summary>\n<div class=\"gbody\">\n<p>The He 51 is remembered above all for Spain. The first examples arrived with the Condor Legion in 1936 and initially performed well against the assortment of older types the Republicans first fielded. That advantage evaporated once Soviet aid arrived. The Polikarpov I-15 could out-turn the He 51, and the monoplane I-16 &mdash; faster in level flight and in the dive &mdash; could dictate every engagement, choosing when to fight and when to leave.<\/p>\n<p>Rather than keep losing an unwinnable fight for air superiority, the Germans re-tasked the He 51 as a ground-attack aircraft, carrying small bombs and strafing enemy positions. It was dangerous, low-level work, but it kept the type useful and fed directly into the close-support tactics the Luftwaffe would later use across Europe. The arrival of the Bf 109 from 1937 confirmed the He 51&rsquo;s demotion: the future of the fighter was a monoplane, and everyone in Spain could see it.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"sec alt\">\n<div class=\"wrap\">\n<p class=\"kick\">Design &amp; Engineering<\/p>\n<h2>How the Heinkel He 51 was built: a well-made answer to yesterday&rsquo;s question<\/h2>\n<p class=\"lead\">The He 51 was a thoroughly conventional biplane executed to a high standard &mdash; sound, pleasant and reliable, but built around ideas the rest of aviation was already leaving behind.<\/p>\n<div class=\"eng\">\n<div class=\"ecard\">\n<div class=\"en\">01<\/div>\n<h3>A clean biplane of wood and metal<\/h3>\n<p>Single-bay, staggered wings of wooden construction, a fuselage of welded steel tube with metal and fabric covering, and a fixed, spatted undercarriage. Tidy and strong &mdash; but with two wings and their bracing came the drag that capped its speed.<\/p>\n<\/div>\n<div class=\"ecard\">\n<div class=\"en\">02<\/div>\n<h3>The BMW VI V-12<\/h3>\n<p>A big BMW VI liquid-cooled V-12 of roughly 750 hp gave the He 51 its long nose and steady performance. It was dependable and well understood, but it was 1920s-generation technology, and there was little more speed to be wrung from the airframe.<\/p>\n<\/div>\n<div class=\"ecard\">\n<div class=\"en\">03<\/div>\n<h3>Two machine guns &mdash; and not much else<\/h3>\n<p>Armament was two rifle-calibre 7.92 mm MG 17 machine guns firing through the propeller. Adequate against 1920s opponents, it was thin firepower by the late 1930s, when cannon-armed monoplanes were arriving.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"sec\">\n<div class=\"wrap\">\n<p class=\"kick\">Specifications<\/p>\n<h2>Heinkel He 51 specifications: dimensions, performance and cost<\/h2>\n<div class=\"spectbls\">\n<table class=\"spec\">\n<caption>Dimensions &amp; powerplant<\/caption>\n<tbody>\n<tr>\n<td class=\"k\">Type<\/td>\n<td class=\"v\">Single-seat biplane fighter (later ground-attack \/ trainer)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Crew<\/td>\n<td class=\"v\">1<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Length<\/td>\n<td class=\"v\">~8.4 m (27 ft 7 in)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Wingspan<\/td>\n<td class=\"v\">~11.0 m (36 ft 1 in)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Height<\/td>\n<td class=\"v\">~3.2 m (10 ft 6 in)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Empty weight<\/td>\n<td class=\"v\">~1,460 kg (~3,220 lb) &mdash; approx.<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Loaded weight<\/td>\n<td class=\"v\">~1,900 kg (~4,190 lb) &mdash; approx.<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Engine<\/td>\n<td class=\"v\">BMW VI 7,3 liquid-cooled V-12<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Power<\/td>\n<td class=\"v\">~750 hp (~560 kW)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Wing area<\/td>\n<td class=\"v\">~27.2 m&sup2; (~293 sq ft) &mdash; approx.<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Wing configuration<\/td>\n<td class=\"v\">Single-bay staggered biplane, wooden wings<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Undercarriage<\/td>\n<td class=\"v\">Fixed, spatted tailwheel type<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Armament<\/td>\n<td class=\"v\">2 &times; 7.92 mm MG 17 MG; light bombs in ground-attack role<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"spec\">\n<caption>Performance &amp; programme<\/caption>\n<tbody>\n<tr>\n<td class=\"k\">Max speed<\/td>\n<td class=\"v\">~330 km\/h (~205 mph) &mdash; est.<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Service ceiling<\/td>\n<td class=\"v\">~7,700 m (~25,250 ft) &mdash; est.<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Range<\/td>\n<td class=\"v\">~570 km (~355 mi) &mdash; est.<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Rate of climb<\/td>\n<td class=\"v\">moderate for its era (figures vary)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">First flight<\/td>\n<td class=\"v\">1933 (prototype)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Primary operators<\/td>\n<td class=\"v\">Germany (Luftwaffe \/ Condor Legion), Spain, Bulgaria<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Introduced (Luftwaffe)<\/td>\n<td class=\"v\">1935<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Front-line withdrawal<\/td>\n<td class=\"v\">from 1938 (retained as trainer)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Number built<\/td>\n<td class=\"v\">~700 total (figures vary)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Main variants<\/td>\n<td class=\"v\">He 51A, He 51B, He 51C, He 51W floatplane<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Unit cost<\/td>\n<td class=\"v\">not reliably recorded (interwar Germany)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Cost per flight hour<\/td>\n<td class=\"v\">not reliably recorded (interwar Germany)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Programme cost<\/td>\n<td class=\"v\">not reliably recorded (interwar Germany)<\/td>\n<\/tr>\n<tr>\n<td class=\"k\">Fleet flight hours<\/td>\n<td class=\"v\">not reliably recorded (interwar Germany)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"gd\">\n<details>\n<summary><span class=\"gnum\">03<\/span><span class=\"gt\">The Heinkel He 51&rsquo;s operating costs: what the numbers do and don&rsquo;t tell us<\/span><span class=\"gsign\">+<\/span><\/summary>\n<div class=\"gbody\">\n<p>Unlike modern jets, the He 51 has no reliable published unit price, cost-per-flight-hour or programme cost. It was built in the mid-1930s by a secretive, rapidly rearming state that did not publish transparent defence accounts, and the surviving records are patchy. Any specific figure quoted online should be treated with caution.<\/p>\n<p>What can be said in general terms is that the He 51 was, by design, a cheap and simple aircraft to build and maintain relative to the monoplanes that followed. Wood-and-steel-tube construction, a well-understood BMW engine and light armament made it economical to produce in quantity and easy to keep serviceable at a training school &mdash; which is exactly why it lingered in the flying schools long after it left the front line. We list its cost fields as &ldquo;not reliably recorded&rdquo; rather than invent numbers.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary><span class=\"gnum\">04<\/span><span class=\"gt\">The Heinkel He 51&rsquo;s variants: A, B, C and the He 51W floatplane<\/span><span class=\"gsign\">+<\/span><\/summary>\n<div class=\"gbody\">\n<p>The He 51 was produced in several closely related versions. The <b>He 51A<\/b> was the initial fighter; the <b>He 51B<\/b> introduced a strengthened structure and, in the B-2 sub-variant, provision for a jettisonable belly fuel tank to extend range. The <b>He 51C<\/b> was optimised for the ground-attack role that Spain forced on the type, with racks for light bombs.<\/p>\n<p>Most unusual was the <b>He 51W<\/b>, a twin-float seaplane conversion produced in small numbers for shipboard and coastal evaluation. None of the variants transformed the aircraft&rsquo;s fundamental performance &mdash; the basic biplane layout and BMW VI engine set hard limits &mdash; but together they let one airframe cover fighter, attack, training and float roles across roughly a decade of service.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary><span class=\"gnum\">05<\/span><span class=\"gt\">The Heinkel He 51&rsquo;s engine and why it could not go faster<\/span><span class=\"gsign\">+<\/span><\/summary>\n<div class=\"gbody\">\n<p>Almost everything that limited the He 51 traces back to a sensible, conservative choice: the BMW VI. This liquid-cooled V-12 was one of the most widely used German aero-engines of the late 1920s and early 1930s. Reliable, well understood and available in quantity, it was exactly what a rearming air force wanted for a first fighter that had to be fielded quickly and kept flying by mechanics still learning the trade.<\/p>\n<p>The problem was that the BMW VI was already mature technology, with little development potential left in it. Hung on a draggy biplane airframe with fixed landing gear and a forest of interplane struts and bracing wires, its roughly 750 horsepower translated into a top speed of only around 330 km\/h. Contemporary monoplanes were already pushing well beyond that &mdash; and no amount of tuning the He 51 could close the gap.<\/p>\n<p>This is the honest technical heart of the He 51&rsquo;s story. It was not badly engineered; it was competently built around assumptions the rest of aviation was in the middle of abandoning.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary><span class=\"gnum\">06<\/span><span class=\"gt\">The Heinkel He 51 versus the Polikarpov I-15 and I-16: an honest comparison<\/span><span class=\"gsign\">+<\/span><\/summary>\n<div class=\"gbody\">\n<p>The He 51&rsquo;s reputation was made and broken by two Soviet aircraft supplied to the Spanish Republicans. The Polikarpov I-15 was itself a biplane, agile and a close match for the He 51 in a turning fight. Where the He 51 ran into real trouble was the monoplane Polikarpov I-16.<\/p>\n<p>The I-16 had a retractable undercarriage and a top speed comfortably above the He 51&rsquo;s. That speed advantage was decisive: a faster aircraft chooses whether to fight at all, climbing above its opponent, diving to attack, then using its speed to disengage. The He 51, unable to catch the I-16 or to run from it, was left reacting to an enemy that controlled the tempo of every encounter.<\/p>\n<p>It would be wrong to paint the He 51 as helpless &mdash; skilled German pilots still scored victories &mdash; but the trend was unmistakable, and the Luftwaffe read it correctly, moving the type to ground attack and hurrying the Bf 109 into service.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary><span class=\"gnum\">07<\/span><span class=\"gt\">The Heinkel He 51&rsquo;s real legacy: rebuilding a fighter arm and inventing a doctrine<\/span><span class=\"gsign\">+<\/span><\/summary>\n<div class=\"gbody\">\n<p>Judged purely as a fighter, the He 51 was a short-lived disappointment. Judged by what it left behind, it mattered a great deal. It was the aircraft on which the reborn Luftwaffe re-learned how to build fighters in quantity, organise fighter squadrons, and train fighter pilots &mdash; institutional knowledge that had lapsed since 1918.<\/p>\n<p>Its second legacy was doctrinal. Forced out of the air-superiority role in Spain, the He 51 became a ground-attack aircraft, and the lessons its pilots learned about low-level attack and coordination with ground forces fed directly into the close-support methods the Luftwaffe used in 1939 and 1940.<\/p>\n<p>So the He 51 occupies an odd but genuine place in history: not a war-winner, but a foundational aircraft whose failures were as instructive as any success.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"sec alt\">\n<div class=\"wrap\">\n<p class=\"kick\">Timeline<\/p>\n<h2>The Heinkel He 51 through the years<\/h2>\n<div class=\"tl\">\n<div class=\"tlrow\">\n<div class=\"tlyr\">1932<\/div>\n<div class=\"tlc\"><b>The He 49 predecessor<\/b><\/p>\n<p>Heinkel flies the He 49, the G&uuml;nter brothers&rsquo; biplane fighter developed under the cover of Versailles-era restrictions. It is the direct ancestor of the He 51.<\/p>\n<\/div>\n<\/div>\n<div class=\"tlrow\">\n<div class=\"tlyr\">1933<\/div>\n<div class=\"tlc\"><b>First flight<\/b><\/p>\n<p>The He 51 prototype takes to the air, a refined and strengthened development of the He 49 powered by the BMW VI V-12.<\/p>\n<\/div>\n<\/div>\n<div class=\"tlrow\">\n<div class=\"tlyr\">1934<\/div>\n<div class=\"tlc\"><b>Into production<\/b><\/p>\n<p>Series production is organised, with manufacture shared between Heinkel and licensees, as Germany quietly builds up the fighter force it is about to reveal.<\/p>\n<\/div>\n<\/div>\n<div class=\"tlrow\">\n<div class=\"tlyr\">1935<\/div>\n<div class=\"tlc\"><b>The Luftwaffe&rsquo;s first fighter<\/b><\/p>\n<p>With the Luftwaffe openly unveiled, the He 51 enters service as its first operational fighter, equipping Jagdgeschwader 132 &ldquo;Richthofen&rdquo;.<\/p>\n<\/div>\n<\/div>\n<div class=\"tlrow\">\n<div class=\"tlyr\">1936<\/div>\n<div class=\"tlc\"><b>Off to Spain<\/b><\/p>\n<p>He 51s deploy to Spain with the Condor Legion to fight for the Nationalists in the Spanish Civil War, at first with some success.<\/p>\n<\/div>\n<\/div>\n<div class=\"tlrow\">\n<div class=\"tlyr\">1937<\/div>\n<div class=\"tlc\"><b>Outclassed, then re-tasked<\/b><\/p>\n<p>Soviet Polikarpov I-15 and I-16 fighters overwhelm the He 51 in air combat. It is switched to ground-attack, and the arrival of the Bf 109 seals its obsolescence.<\/p>\n<\/div>\n<\/div>\n<div class=\"tlrow\">\n<div class=\"tlyr\">1938<\/div>\n<div class=\"tlc\"><b>Pushed to the schools<\/b><\/p>\n<p>The He 51 is withdrawn from front-line fighter units and reassigned to advanced flying training, a role it fills into the early war years.<\/p>\n<\/div>\n<\/div>\n<div class=\"tlrow\">\n<div class=\"tlyr\">1940s<\/div>\n<div class=\"tlc\"><b>Fading away<\/b><\/p>\n<p>Worn out and long obsolete, surviving He 51s are retired from training duties during the Second World War. Only reproductions survive today.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"sec\">\n<div class=\"wrap\">\n<p class=\"kick\">Stories &amp; Eyewitnesses<\/p>\n<h2>The Heinkel He 51 in stories: the moments that defined it<\/h2>\n<p class=\"lead\">A shop-window fighter, a hard war in Spain, a switch to the mud-and-bullets business of ground attack, and a long second life teaching cadets &mdash; the He 51&rsquo;s history told through the moments that stuck.<\/p>\n<div class=\"carwrap\">\n<div><button class=\"carbtn\" onclick=\"this.parentElement.parentElement.querySelector('.track').scrollBy({left:-712,behavior:'smooth'})\">&lsaquo;<\/button><button class=\"carbtn\" onclick=\"this.parentElement.parentElement.querySelector('.track').scrollBy({left:712,behavior:'smooth'})\">&rsaquo;<\/button><\/div>\n<div class=\"track\">\n<details class=\"scard\">\n<summary><span class=\"stag\">National Symbol<\/span><\/p>\n<h3>The fighter in the shop window<\/h3>\n<p class=\"sprev\">In 1935 the He 51 was proof that Germany had a fighter arm again &mdash; and it was shown off relentlessly.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>When the Luftwaffe was publicly unveiled, the He 51 was its poster aircraft. Neat, modern-looking and pleasant to fly, it featured in displays and propaganda as evidence that Germany was once again a serious air power. For a year or two the image held &mdash; before combat exposed how quickly the state of the art had moved on.<\/p>\n<p>There was a hard logic to the display flights and photo opportunities. A visible, credible fighter arm was a diplomatic instrument as much as a military one, meant to impress rivals and reassure the public. For that purpose the He 51 was ideal: it looked purposeful, flew well in a demonstration, and existed in numbers when much of the rest of the rearmament programme was still on the drawing board.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">Jagdgeschwader Richthofen<\/span><\/p>\n<h3>First to a famous name<\/h3>\n<p class=\"sprev\">The He 51 armed JG 132 &ldquo;Richthofen&rdquo;, carrying the most storied name in German fighter aviation into a new era.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>Equipping the wing that bore the Red Baron&rsquo;s name gave the He 51 an outsized symbolic role. It was the aircraft on which many of the Luftwaffe&rsquo;s earliest fighter pilots learned their trade, forming the nucleus of squadrons that would soon convert to the Bf 109.<\/p>\n<p>In that sense the He 51 was a bridge aircraft. The pilots, ground crews and squadron structures built up around it did not disappear when the type was retired &mdash; they carried straight over to the monoplanes, taking with them the habits and discipline learned on the biplane.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">Spain 1936<\/span><\/p>\n<h3>The first real test<\/h3>\n<p class=\"sprev\">The Condor Legion took the He 51 to Spain expecting superiority. It did not last.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>Against the Republicans&rsquo; early, mixed fleet the He 51 did well enough. But the balance of the air war shifted the moment modern Soviet fighters appeared. What had looked like a capable front-line fighter at home was revealed as a machine already overtaken by events.<\/p>\n<p>Spain was the first time the reborn Luftwaffe tested its equipment in real combat rather than on the exercise field, and the He 51 took that test. The verdict it returned &mdash; that biplane fighters were finished and that speed now trumped agility &mdash; was uncomfortable, but it arrived early enough to act on.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">Chato &amp; Mosca<\/span><\/p>\n<h3>Beaten by the Polikarpovs<\/h3>\n<p class=\"sprev\">The I-15 out-turned it and the I-16 simply out-ran it. The He 51 could neither catch nor escape.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>Spanish and Soviet pilots nicknamed their Polikarpovs the Chato (&ldquo;snub-nose&rdquo;, the I-15) and Mosca (&ldquo;fly&rdquo;, the I-16). The monoplane I-16 in particular could choose the terms of every fight. For He 51 pilots it was a brutal lesson in what a faster, more modern aircraft could impose on an older one.<\/p>\n<p>The experience left a deep mark on German fighter thinking. Pilots who came home from Spain were convinced that speed, climb and the freedom to choose when to fight mattered more than tight turning &mdash; a conviction that shaped how they later flew the Bf 109, favouring fast, energy-based slashing attacks over swirling close-in dogfights.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">Change of Job<\/span><\/p>\n<h3>Down into the ground-attack role<\/h3>\n<p class=\"sprev\">If it could not win the sky, it could still hit the ground. The He 51 became a strafer and light bomber.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>Rather than throw the type away, the Germans put it to work at low level, attacking troops and positions. The work was hazardous but valuable, and it helped the Luftwaffe develop the close-support methods it would use to devastating effect in the opening campaigns of the Second World War.<\/p>\n<p>Ground attack in a slow biplane was punishing work. Pilots ran the gauntlet of rifle fire and light flak at low altitude, with little armour and less speed to protect them. That the He 51 kept doing useful damage says as much about the courage of its pilots as about the aircraft &mdash; a reminder that an obsolete design can still be dangerous in determined hands.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">Galland in Spain<\/span><\/p>\n<h3>A future general in the mud<\/h3>\n<p class=\"sprev\">Adolf Galland flew ground-attack sorties on the He 51 in Spain before his fame as a fighter leader.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>Galland, who would later command Germany&rsquo;s fighter arm, cut his combat teeth flying low-level attack missions in the He 51. It was unglamorous, dangerous flying &mdash; a long way from the high-altitude duels he became known for &mdash; but it was formative experience for one of the war&rsquo;s most influential airmen.<\/p>\n<p>Galland was not alone. A whole cohort of future Luftwaffe leaders rotated through Spain, and the He 51 was often the aircraft on which they first heard shots fired in anger. The combat experience they gained gave the German fighter arm a cadre of battle-tested commanders that few other air forces could match in 1939.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">The Bf 109 Arrives<\/span><\/p>\n<h3>Overtaken in a single season<\/h3>\n<p class=\"sprev\">When the Messerschmitt monoplane reached Spain in 1937, the biplane fighter&rsquo;s day was visibly over.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>The Bf 109&rsquo;s speed, climb and firepower made the contrast with the He 51 stark and immediate. The monoplane revolution was no longer a theory to be argued in staff colleges; it was flying overhead in Spain, and the He 51 was on the wrong side of it.<\/p>\n<p>For the He 51 the arrival of the Bf 109 was both a rescue and a retirement notice. It relieved the biplane of a job it could no longer do, and made explicit what Spain had already implied: the He 51&rsquo;s front-line career was over.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">Nationalist Spain<\/span><\/p>\n<h3>Handed to Franco&rsquo;s air arm<\/h3>\n<p class=\"sprev\">As the Germans moved on to newer types, He 51s passed to the Spanish Nationalist air force.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>Spanish crews continued to operate the He 51 in the ground-attack and training roles, flying the type into the early 1940s. For Spain it remained a useful workhorse long after Germany had relegated it to secondary duties.<\/p>\n<p>This hand-me-down pattern was typical of the era: front-line aircraft that had lost their edge were passed to allies and second-line units rather than scrapped. In Spanish service the He 51 soldiered on in the attack and training roles into the early 1940s, outlasting its German front-line career by several years.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">Export<\/span><\/p>\n<h3>A few went abroad<\/h3>\n<p class=\"sprev\">Beyond Germany and Spain, Bulgaria received a small batch of He 51 fighters.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>The He 51 was never a major export success &mdash; by the time it was available for sale it was already dated &mdash; but Bulgaria took a small number, operating them as fighters and trainers. Export figures for the type are modest and not always precisely recorded.<\/p>\n<p>The He 51&rsquo;s limited export record is itself telling. By the time it was available abroad it was neither cutting-edge nor especially cheap relative to newer designs. Its small overseas footprint is another quiet measure of how narrow its window of relevance really was.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">On Floats<\/span><\/p>\n<h3>The He 51W experiment<\/h3>\n<p class=\"sprev\">A twin-float seaplane version was built in small numbers for maritime evaluation.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>The He 51W swapped the wheeled undercarriage for twin floats, exploring the idea of a shipboard or coastal fighter. It never entered widespread service, but it is a reminder of how many roles designers tried to squeeze from a single interwar airframe.<\/p>\n<p>Float-fighter experiments were common in the 1930s, when navies were still working out how to project air power without a full carrier fleet. The He 51W was Germany&rsquo;s modest contribution to that line of thought. It went nowhere &mdash; floats cost too much speed for too little gain &mdash; but it shows how open the design questions of the period still were.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">The Schoolroom<\/span><\/p>\n<h3>A long second life as a trainer<\/h3>\n<p class=\"sprev\">Its front-line career was short; its training career kept it flying for years.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>Docile, forgiving and available in numbers, the He 51 made a serviceable advanced trainer. Thousands of hours were flown teaching cadets the fundamentals of a powerful single-seater before they graduated to the aircraft that would actually fight the war.<\/p>\n<p>It is easy to overlook the training role, but it may be where the He 51 did its most lasting work. Every hour a cadet spent mastering a powerful single-seater on a forgiving biplane made him safer and more effective on a Bf 109. In that unglamorous job the He 51 quietly contributed to the Luftwaffe&rsquo;s early-war strength.<\/p>\n<\/div>\n<\/details>\n<details class=\"scard\">\n<summary><span class=\"stag\">Legacy<\/span><\/p>\n<h3>The honest first step<\/h3>\n<p class=\"sprev\">The He 51 did not win battles &mdash; it rebuilt an institution and absorbed a hard lesson.<\/p>\n<\/summary>\n<div class=\"sbody\">\n<p>Judged as a combat aircraft the He 51 was a disappointment. Judged as the machine that re-established German fighter production, trained the first Luftwaffe fighter pilots and delivered the unambiguous message that the biplane era was over, it did an important job. Sometimes the most useful aircraft are the ones that teach you what you can no longer get away with.<\/p>\n<p>That is why the He 51 deserves to be remembered honestly rather than dismissed. It was obsolescent almost on arrival, beaten in its only serious air war, and left no roll of famous victories. Yet it rebuilt an institution, blooded a generation of pilots and delivered a clear verdict on the direction of air combat &mdash; all in a few years.<\/p>\n<\/div>\n<\/details><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"sec alt\">\n<div class=\"wrap\">\n<p class=\"kick\">Photo Gallery<\/p>\n<h2>The Heinkel He 51 in photographs<\/h2>\n<p class=\"lead\">Period photographs and images of preserved airframes and reproductions, each credited to its source and licence. Click any photo to enlarge.<\/p>\n<div class=\"gallery\" id=\"he51-gallery\">\n<figure class=\"gfig tall\" data-full=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:auto\/h:auto\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-luftwaffe-reproduction.jpg\" data-cap=\"Heinkel He 51 in Luftwaffe markings &mdash; museum reproduction. Photo: Blende22 \/ Wikimedia Commons (CC BY-SA 4.0).\"><img data-opt-id=1763622677  data-opt-src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:1536\/h:907\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-luftwaffe-reproduction.jpg\"  decoding=\"async\" src=\"data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201536%20907%22%20width%3D%221536%22%20height%3D%22907%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Crect%20width%3D%221536%22%20height%3D%22907%22%20fill%3D%22transparent%22%2F%3E%3C%2Fsvg%3E\" loading=\"lazy\" alt=\"Heinkel He 51 in Luftwaffe markings, museum reproduction. Photo: Blende22 \/ Wikimedia Commons (CC BY-SA 4.0).\"><figcaption>Heinkel He 51 in Luftwaffe markings &mdash; museum reproduction. Photo: Blende22 \/ Wikimedia Commons (CC BY-SA 4.0).<\/figcaption><\/figure>\n<figure class=\"gfig\" data-full=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:5yyy.ce73\/w:auto\/h:auto\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-fighter-sdasm.jpg\" data-cap=\"Heinkel He 51 biplane fighter, 1930s. Photo: San Diego Air &amp; Space Museum Archives (CC0 \/ public domain).\"><img data-opt-id=416069782  data-opt-src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:5yyy.ce73\/w:1536\/h:974\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-fighter-sdasm.jpg\"  decoding=\"async\" src=\"data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201536%20974%22%20width%3D%221536%22%20height%3D%22974%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Crect%20width%3D%221536%22%20height%3D%22974%22%20fill%3D%22transparent%22%2F%3E%3C%2Fsvg%3E\" loading=\"lazy\" alt=\"Heinkel He 51 biplane fighter, 1930s. Photo: San Diego Air and Space Museum Archives (CC0).\"><figcaption>Heinkel He 51 biplane fighter, 1930s. Photo: San Diego Air &amp; Space Museum Archives (CC0 \/ public domain).<\/figcaption><\/figure>\n<figure class=\"gfig\" data-full=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:auto\/h:auto\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-flight-line-sdasm.jpg\" data-cap=\"Heinkel He 51 on the flight line, 1930s. Photo: San Diego Air &amp; Space Museum Archives (CC0 \/ public domain).\"><img data-opt-id=2039800206  data-opt-src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:1536\/h:1006\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-flight-line-sdasm.jpg\"  decoding=\"async\" src=\"data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201536%201006%22%20width%3D%221536%22%20height%3D%221006%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Crect%20width%3D%221536%22%20height%3D%221006%22%20fill%3D%22transparent%22%2F%3E%3C%2Fsvg%3E\" loading=\"lazy\" alt=\"Heinkel He 51 on the flight line, 1930s. Photo: San Diego Air and Space Museum Archives (CC0).\"><figcaption>Heinkel He 51 on the flight line, 1930s. Photo: San Diego Air &amp; Space Museum Archives (CC0 \/ public domain).<\/figcaption><\/figure>\n<figure class=\"gfig wide\" data-full=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:auto\/h:auto\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-jg-richthofen-reproduction.jpg\" data-cap=\"Heinkel He 51 in Jagdgeschwader Richthofen markings &mdash; museum reproduction. Photo: Blende22 \/ Wikimedia Commons (CC BY-SA 4.0).\"><img data-opt-id=865310024  data-opt-src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:1536\/h:1053\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-jg-richthofen-reproduction.jpg\"  decoding=\"async\" src=\"data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201536%201053%22%20width%3D%221536%22%20height%3D%221053%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Crect%20width%3D%221536%22%20height%3D%221053%22%20fill%3D%22transparent%22%2F%3E%3C%2Fsvg%3E\" loading=\"lazy\" alt=\"Heinkel He 51 in Jagdgeschwader Richthofen markings, museum reproduction. Photo: Blende22 \/ Wikimedia Commons (CC BY-SA 4.0).\"><figcaption>Heinkel He 51 in Jagdgeschwader Richthofen markings &mdash; museum reproduction. Photo: Blende22 \/ Wikimedia Commons (CC BY-SA 4.0).<\/figcaption><\/figure>\n<figure class=\"gfig\" data-full=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:auto\/h:auto\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51b-fighter.jpg\" data-cap=\"Heinkel He 51B single-seat fighter. Photo: public domain via Wikimedia Commons.\"><img data-opt-id=1651092598  data-opt-src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:auto\/h:auto\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51b-fighter.jpg\"  decoding=\"async\" src=\"data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%20100%%20100%%22%20width%3D%22100%%22%20height%3D%22100%%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Crect%20width%3D%22100%%22%20height%3D%22100%%22%20fill%3D%22transparent%22%2F%3E%3C%2Fsvg%3E\" loading=\"lazy\" alt=\"Heinkel He 51B single-seat fighter. Photo: public domain via Wikimedia Commons.\"><figcaption>Heinkel He 51B single-seat fighter. Photo: public domain via Wikimedia Commons.<\/figcaption><\/figure>\n<figure class=\"gfig\" data-full=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:auto\/h:auto\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-flying-school.jpg\" data-cap=\"Heinkel He 51 A\/C of a Luftwaffe flying school (FFS A\/B 121), late 1930s. Photo: public domain via Wikimedia Commons.\"><img data-opt-id=1024053460  data-opt-src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:1536\/h:930\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-flying-school.jpg\"  decoding=\"async\" src=\"data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201536%20930%22%20width%3D%221536%22%20height%3D%22930%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Crect%20width%3D%221536%22%20height%3D%22930%22%20fill%3D%22transparent%22%2F%3E%3C%2Fsvg%3E\" loading=\"lazy\" alt=\"Heinkel He 51 A\/C of a Luftwaffe flying school, late 1930s. Photo: public domain via Wikimedia Commons.\"><figcaption>Heinkel He 51 A\/C of a Luftwaffe flying school (FFS A\/B 121), late 1930s. Photo: public domain via Wikimedia Commons.<\/figcaption><\/figure>\n<figure class=\"gfig\" data-full=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:auto\/h:auto\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-preserved-display.jpg\" data-cap=\"Preserved Heinkel He 51 on display. Photo: tormentor4555 \/ Wikimedia Commons (Public Domain Mark).\"><img data-opt-id=1186881381  data-opt-src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:1536\/h:887\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-preserved-display.jpg\"  decoding=\"async\" src=\"data:image/svg+xml,%3Csvg%20viewBox%3D%220%200%201536%20887%22%20width%3D%221536%22%20height%3D%22887%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Crect%20width%3D%221536%22%20height%3D%22887%22%20fill%3D%22transparent%22%2F%3E%3C%2Fsvg%3E\" loading=\"lazy\" alt=\"Preserved Heinkel He 51 on display. Photo: tormentor4555 \/ Wikimedia Commons (Public Domain Mark).\"><figcaption>Preserved Heinkel He 51 on display. Photo: tormentor4555 \/ Wikimedia Commons (Public Domain Mark).<\/figcaption><\/figure>\n<\/p><\/div>\n<div class=\"he51-lb\" id=\"he51-lightbox\"><button class=\"he51-lb-close\">&times;<\/button><button class=\"he51-lb-prev\">&lsaquo;<\/button><button class=\"he51-lb-next\">&rsaquo;<\/button><img alt=\"Heinkel He 51 enlarged photo\"><\/p>\n<div class=\"he51-lb-cap\"><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"sec\">\n<div class=\"wrap\">\n<p class=\"kick\">On Film<\/p>\n<h2>The Heinkel He 51 on video: a documentary history<\/h2>\n<p class=\"lead\">A dedicated documentary on the He 51 &mdash; how it became the Luftwaffe&rsquo;s first fighter, why it struggled in Spain, and how it ended its days as a trainer.<\/p>\n<div class=\"vid\"><iframe src=\"https:\/\/www.youtube.com\/embed\/GOphP4siBJI\" title=\"Heinkel He-51: The Luftwaffe&rsquo;s Phoenix (War Machines)\" loading=\"lazy\" allowfullscreen><\/iframe><\/div>\n<p class=\"vcap\">&ldquo;Heinkel He-51: The Luftwaffe&rsquo;s Phoenix&rdquo; by War Machines (approx. 25,000 views at time of writing; running time ~15 minutes). A focused documentary treatment of the type&rsquo;s design, combat debut in Spain and decline.<\/p>\n<\/div>\n<\/section>\n<p> <script src=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/d3\/7.8.5\/d3.min.js\"><\/script> <script src=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/topojson\/3.0.2\/topojson.min.js\"><\/script> <script src=\"https:\/\/cdn.jsdelivr.net\/npm\/d3-geo-projection@4\/dist\/d3-geo-projection.min.js\"><\/script> <\/p>\n<section class=\"sec alt\">\n<div class=\"wrap\">\n<p class=\"kick\">Operations Overview<\/p>\n<h2>Where the Heinkel He 51 flew: an operator map<\/h2>\n<p class=\"lead\">Designed and built in Germany, blooded in Spain with the Condor Legion, and operated by a small circle of air forces. Toggle the categories to see the He 51&rsquo;s reach; hover or tap a country for detail. Figures are approximate and hedged.<\/p>\n<div class=\"maphold\">\n<div id=\"he51-map-widget\">\n<div id=\"he51-map-container\" style=\"width:100%;position:relative\"><svg id=\"he51-map-svg\" style=\"width:100%;height:auto;display:block\"><\/svg><\/p>\n<div id=\"he51-tooltip\" style=\"position:fixed;background:#1a1a2e;color:#fff;padding:10px 16px;font-size:13px;font-weight:400;letter-spacing:.3px;pointer-events:auto;opacity:0;transition:opacity .15s;z-index:100000;max-width:360px;line-height:1.5\"><\/div>\n<\/div>\n<div id=\"he51-controls\" style=\"display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-start;margin-top:12px\"><button class=\"he51-toggle active\" data-cat=\"origin\" data-full=\"Design &amp; Manufacture (Germany)\" data-short=\"Origin\" style=\"display:flex;align-items:center;gap:6px;padding:8px 12px;border:2px solid #5C91FF;border-radius:0;background:#fff;cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;color:#1a1a2e;white-space:nowrap\"><\/p>\n<div style=\"width:14px;height:14px;flex-shrink:0;background:#5C91FF\"><\/div>\n<p><span class=\"he51-label\">Design &amp; Manufacture<\/span><span class=\"he51-check\" style=\"font-size:10px;opacity:1\">&#10003;<\/span><\/button><button class=\"he51-toggle active\" data-cat=\"raf\" data-full=\"Combat Use &mdash; Spanish Civil War\" data-short=\"Combat\" style=\"display:flex;align-items:center;gap:6px;padding:8px 12px;border:2px solid #6B8E23;border-radius:0;background:#fff;cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;color:#1a1a2e;white-space:nowrap\"><\/p>\n<div style=\"width:14px;height:14px;flex-shrink:0;background:linear-gradient(135deg,#4A6741 25%,#6B8E23 25%,#6B8E23 50%,#556B2F 50%,#556B2F 75%,#8B9D77 75%);background-size:8px 8px\"><\/div>\n<p><span class=\"he51-label\">Combat Use (Spain)<\/span><span class=\"he51-check\" style=\"font-size:10px;opacity:1\">&#10003;<\/span><\/button><button class=\"he51-toggle active\" data-cat=\"exp\" data-full=\"Air Force Operator\" data-short=\"Operator\" style=\"display:flex;align-items:center;gap:6px;padding:8px 12px;border:2px solid #555;border-radius:0;background:#fff;cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;color:#1a1a2e;white-space:nowrap\"><\/p>\n<div style=\"width:14px;height:14px;flex-shrink:0;background:#555\"><\/div>\n<p><span class=\"he51-label\">Air Force Operator<\/span><span class=\"he51-check\" style=\"font-size:10px;opacity:1\">&#10003;<\/span><\/button><button class=\"he51-toggle active\" data-cat=\"surv\" data-full=\"Reproduction \/ Airframe on Display\" data-short=\"On Display\" style=\"display:flex;align-items:center;gap:6px;padding:8px 12px;border:2px solid #C0C0C0;border-radius:0;background:#fff;cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;color:#1a1a2e;white-space:nowrap\"><\/p>\n<div style=\"width:14px;height:14px;flex-shrink:0;background:#C0C0C0\"><\/div>\n<p><span class=\"he51-label\">On Display<\/span><span class=\"he51-check\" style=\"font-size:10px;opacity:1\">&#10003;<\/span><\/button><\/div>\n<div id=\"he51-count\" style=\"text-align:left;font-size:14px;color:#666;margin-top:12px;line-height:1.7;width:100%\"><\/div>\n<\/div>\n<\/div>\n<p class=\"vcap\" style=\"margin-top:14px\">Categories: <b style=\"color:#5C91FF\">Design &amp; Manufacture<\/b> (Germany) &middot; <b>Combat Use<\/b> (Spain, Condor Legion, 1936&ndash;39) &middot; <b>Air Force Operator<\/b> (Germany, Spain, Bulgaria) &middot; <b>On Display<\/b> (full-scale reproductions; no confirmed original airframe is known to survive). Fleet figures are approximate and hedged.<\/p>\n<\/div>\n<\/section>\n<section class=\"sec\">\n<div class=\"wrap\">\n<p class=\"kick\">Combat Record<\/p>\n<h2>The Heinkel He 51&rsquo;s combat record: a hard debut in Spain<\/h2>\n<p class=\"lead\">The He 51&rsquo;s combat career was concentrated in one conflict, and its main lesson was written in the losses that pushed it out of the fighter role.<\/p>\n<div class=\"rec\">\n<div class=\"rcard\"><b>1935<\/b><span>Year it became the Luftwaffe&rsquo;s first operational fighter<\/span><\/div>\n<div class=\"rcard\"><b>1936<\/b><span>First combat, with the Condor Legion in Spain<\/span><\/div>\n<div class=\"rcard\"><b>I-15 \/ I-16<\/b><span>Soviet fighters that outclassed it and forced the switch to ground attack<\/span><\/div>\n<div class=\"rcard\"><b>~700<\/b><span>Built &mdash; fighter, attack, floatplane and trainer roles<\/span><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"sec alt\" id=\"faq\">\n<div class=\"wrap\">\n<p class=\"kick\">Questions &amp; Answers<\/p>\n<h2>Heinkel He 51: your questions answered<\/h2>\n<div class=\"qa\">\n<details open>\n<summary>Can I fly in a Heinkel He 51?<\/summary>\n<div class=\"qabody\">\n<p>No &mdash; and realistically nobody can. The He 51 is a single-seat fighter, no genuine airworthy original is known to exist, and the airframes on public display are museum reproductions rather than flyable aircraft. There is no bookable He 51 flight experience, and MiGFlug does not offer one. If what you actually want is the real thing &mdash; strapping into a genuine military aircraft and flying it &mdash; you very much <strong>can<\/strong> do that today in other types. MiGFlug arranges flights in real fighter jets and warbirds around the world. Start here: <a href=\"https:\/\/migflug.com\/flights-prices\/\">migflug.com\/flights-prices<\/a>.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>Why was the Heinkel He 51 obsolete so quickly?<\/summary>\n<div class=\"qabody\">\n<p>Because aviation was changing faster than any single design could keep up with. The He 51 was a biplane with two rifle-calibre machine guns and a top speed around 330 km\/h at a moment when fast, cannon-capable monoplanes were arriving. In Spain the Soviet Polikarpov I-16 monoplane could out-run it and dictate every fight, and Germany&rsquo;s own Bf 109 confirmed the point in 1937. The He 51 was well made; it was simply on the wrong side of the monoplane revolution.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>What role did the He 51 play in the Spanish Civil War?<\/summary>\n<div class=\"qabody\">\n<p>It was the Condor Legion&rsquo;s first fighter in Spain from 1936. After it lost air superiority to Soviet-supplied fighters, it was re-tasked as a ground-attack aircraft, strafing and bombing in support of Nationalist forces &mdash; experience that helped shape later Luftwaffe close-support tactics. Aircraft were also handed to the Spanish Nationalist air arm, which flew the type into the early 1940s.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>How many Heinkel He 51s were built?<\/summary>\n<div class=\"qabody\">\n<p>Around 700 in total, a figure commonly cited but not precise. Production was shared between Heinkel and licensees including Arado, Erla, Fieseler and Ago, and covered the He 51A, He 51B and He 51C variants plus the small-run He 51W floatplane.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>Do any Heinkel He 51s survive today?<\/summary>\n<div class=\"qabody\">\n<p>No complete original He 51 is confirmed to survive in flyable condition. The He 51s seen in museums are generally full-scale reproductions built to represent the type in Luftwaffe markings. As an early-1930s aircraft used hard and then discarded, the He 51 largely vanished &mdash; which is why reproductions now stand in for it.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>Who flew the Heinkel He 51?<\/summary>\n<div class=\"qabody\">\n<p>Primarily the German Luftwaffe, which used it as its first fighter and later as a trainer, and the Condor Legion in Spain. Aircraft passed to the Spanish Nationalist air force, and Bulgaria took a small batch. Among its pilots was Adolf Galland, who flew ground-attack missions on the He 51 in Spain before his later fame as a fighter commander.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>What engine powered the Heinkel He 51?<\/summary>\n<div class=\"qabody\">\n<p>A BMW VI, a liquid-cooled V-12 of roughly 750 horsepower that was one of the most common German aero-engines of its day. It was reliable and well understood, which suited a first fighter that had to be fielded quickly &mdash; but it was mature 1920s technology with little growth left in it, and on the He 51&rsquo;s draggy biplane airframe it could manage only about 330 km\/h.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>Was the Heinkel He 51 a good aircraft?<\/summary>\n<div class=\"qabody\">\n<p>It depends what you measure. As a piece of engineering it was sound, sturdy and pleasant to fly, and it did its foundational jobs &mdash; rebuilding German fighter production, equipping the first squadrons and training pilots &mdash; well. As a combat fighter it was a disappointment, outclassed in Spain and pushed out of front-line service within a few years.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/section>\n<p> <script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Can I fly in a Heinkel He 51?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No - and realistically nobody can. The He 51 is a single-seat fighter, no genuine airworthy original is known to exist, and the airframes on public display are museum reproductions rather than flyable aircraft. There is no bookable He 51 flight experience, and MiGFlug does not offer one. If what you actually want is the real thing - strapping into a genuine military aircraft and flying it - you very much can do that today in other types. MiGFlug arranges flights in real fighter jets and warbirds around the world. Start here: migflug.com\/flights-prices .\"}},{\"@type\":\"Question\",\"name\":\"Why was the Heinkel He 51 obsolete so quickly?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Because aviation was changing faster than any single design could keep up with. The He 51 was a biplane with two rifle-calibre machine guns and a top speed around 330 km\/h at a moment when fast, cannon-capable monoplanes were arriving. In Spain the Soviet Polikarpov I-16 monoplane could out-run it and dictate every fight, and Germany's own Bf 109 confirmed the point in 1937.\"}},{\"@type\":\"Question\",\"name\":\"What role did the He 51 play in the Spanish Civil War?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It was the Condor Legion's first fighter in Spain from 1936. After it lost air superiority to Soviet-supplied fighters, it was re-tasked as a ground-attack aircraft in support of Nationalist forces - experience that helped shape later Luftwaffe close-support tactics. Aircraft were also handed to the Spanish Nationalist air arm, which flew the type into the early 1940s.\"}},{\"@type\":\"Question\",\"name\":\"How many Heinkel He 51s were built?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Around 700 in total, a figure commonly cited but not precise. Production was shared between Heinkel and licensees including Arado, Erla, Fieseler and Ago, and covered the He 51A, He 51B and He 51C variants plus the small-run He 51W floatplane.\"}},{\"@type\":\"Question\",\"name\":\"Do any Heinkel He 51s survive today?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No complete original He 51 is confirmed to survive in flyable condition. The He 51s seen in museums are generally full-scale reproductions built to represent the type in Luftwaffe markings.\"}},{\"@type\":\"Question\",\"name\":\"Who flew the Heinkel He 51?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Primarily the German Luftwaffe, which used it as its first fighter and later as a trainer, and the Condor Legion in Spain. Aircraft passed to the Spanish Nationalist air force, and Bulgaria took a small batch. Among its pilots was Adolf Galland, who flew ground-attack missions on the He 51 in Spain.\"}},{\"@type\":\"Question\",\"name\":\"What engine powered the Heinkel He 51?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A BMW VI, a liquid-cooled V-12 of roughly 750 horsepower that was one of the most common German aero-engines of its day. It was reliable and well understood but was mature 1920s technology with little growth left in it, and on the He 51 airframe it could manage only about 330 km\/h.\"}},{\"@type\":\"Question\",\"name\":\"Was the Heinkel He 51 a good aircraft?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It depends what you measure. As engineering it was sound, sturdy and pleasant to fly, and it did its foundational jobs. As a combat fighter it was a disappointment, outclassed in Spain and pushed out of front-line service within a few years.\"}}]}<\/script> <\/p>\n<section class=\"sec cta\">\n<div class=\"wrap\">\n<p class=\"kick\" style=\"color:#5C91FF\">Fly For Real<\/p>\n<h2>You can&rsquo;t fly the Heinkel He 51 &mdash; but these, you can<\/h2>\n<p class=\"lead\">The He 51 is a museum piece and a reproduction. The urge behind it &mdash; to strap into a real military aircraft and actually fly &mdash; is very much still bookable. MiGFlug puts you in genuine fighters and warbirds around the world.<\/p>\n<div class=\"ctacar\">\n<div class=\"ctacard\">\n<div style=\"height:6px;background:#5C91FF\"><\/div>\n<div class=\"cc\">\n<h3>Fighter Jet Flights<\/h3>\n<p>Take the controls of a real ex-military jet with an experienced pilot.<\/p>\n<p><a class=\"ctabtn\" href=\"https:\/\/migflug.com\/flights-prices\/\">See flights &amp; prices<\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"ctacard\">\n<div style=\"height:6px;background:#5C91FF\"><\/div>\n<div class=\"cc\">\n<h3>L-39 Albatros<\/h3>\n<p>The classic jet trainer &mdash; aerobatics and high-speed passes.<\/p>\n<p><a class=\"ctabtn\" href=\"https:\/\/migflug.com\/flights-prices\/\">See flights &amp; prices<\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"ctacard\">\n<div style=\"height:6px;background:#5C91FF\"><\/div>\n<div class=\"cc\">\n<h3>MiG-29 Fulcrum<\/h3>\n<p>Ride a genuine air-superiority fighter to the edge of space.<\/p>\n<p><a class=\"ctabtn\" href=\"https:\/\/migflug.com\/flights-prices\/\">See flights &amp; prices<\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"ctacard\">\n<div style=\"height:6px;background:#5C91FF\"><\/div>\n<div class=\"cc\">\n<h3>Warbird experiences<\/h3>\n<p>Fly in a genuine piston-engined warbird from aviation&rsquo;s golden age.<\/p>\n<p><a class=\"ctabtn\" href=\"https:\/\/migflug.com\/flights-prices\/\">See flights &amp; prices<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"ctanote\">All flights are operated by MiGFlug&rsquo;s vetted partners with professional pilots. Browse every option and current pricing at <a href=\"https:\/\/migflug.com\/flights-prices\/\" style=\"color:#5C91FF\">migflug.com\/flights-prices<\/a>. MiGFlug does not operate Heinkel He 51 flights &mdash; no genuine flyable He 51 exists.<\/p>\n<\/div>\n<\/section>\n<section class=\"sec\">\n<div class=\"wrap\">\n<p class=\"kick\">Related Aircraft<\/p>\n<h2>If the Heinkel He 51 interests you, explore these<\/h2>\n<div class=\"relgrid\"><a class=\"rel\" href=\"https:\/\/migflug.com\/aircraft\/polikarpov-i-16\/\"><span class=\"rk\">Spanish Civil War &middot; Monoplane Fighter<\/span><span class=\"rt\">Polikarpov I-16<\/span><span class=\"rd\">The fast Soviet monoplane that outclassed the He 51 over Spain and announced the end of the biplane fighter.<\/span><\/a><a class=\"rel\" href=\"https:\/\/migflug.com\/aircraft\/fiat-cr-32\/\"><span class=\"rk\">Spanish Civil War &middot; Biplane Fighter<\/span><span class=\"rt\">Fiat CR.32<\/span><span class=\"rd\">The Italian biplane that fought alongside the He 51 for the Nationalists &mdash; and fared rather better in the same skies.<\/span><\/a><a class=\"rel\" href=\"https:\/\/migflug.com\/aircraft\/messerschmitt-bf-109\/\"><span class=\"rk\">WWII &middot; Monoplane Fighter<\/span><span class=\"rt\">Messerschmitt Bf 109<\/span><span class=\"rd\">The monoplane that replaced the He 51 and became the backbone of the Luftwaffe fighter force through the Second World War.<\/span><\/a><\/div>\n<\/div>\n<\/section>\n<section class=\"sec alt\">\n<div class=\"wrap\">\n<p class=\"kick\">Sources &amp; Further Reading<\/p>\n<h2>Where this Heinkel He 51 history comes from<\/h2>\n<div class=\"sources\">\n<div class=\"src\"><b>Deutsches Museum<\/b>Collection and background material on Heinkel aircraft and interwar German aviation development.<\/div>\n<div class=\"src\"><b>Milit\u00e4rhistorisches Museum Flugplatz Berlin-Gatow<\/b>Luftwaffe museum holdings and displays covering early Luftwaffe types including the He 51 reproduction.<\/div>\n<div class=\"src\"><b>Imperial War Museums (IWM)<\/b>Photographs and archival material on the Condor Legion and air operations in the Spanish Civil War.<\/div>\n<div class=\"src\"><b>San Diego Air &amp; Space Museum Archives<\/b>Public-domain (CC0) period photographs of the Heinkel He 51 used in this article&rsquo;s gallery.<\/div>\n<div class=\"src\"><b>Wikimedia Commons<\/b>Source of the freely licensed He 51 photographs and reproduction images, each credited to its author and licence in the gallery captions.<\/div>\n<div class=\"src\"><b>Established aviation histories of the Condor Legion<\/b>Published histories of German involvement in the Spanish Civil War and the development of Luftwaffe ground-attack tactics.<\/div>\n<div class=\"src\"><b>Heinkel company and Luftwaffe type histories<\/b>Standard references on Ernst Heinkel Flugzeugwerke, the G&uuml;nter brothers and early Luftwaffe fighter procurement.<\/div>\n<div class=\"src\"><b>National Air &amp; Space Museum (Smithsonian)<\/b>Reference material on interwar fighter development and the transition from biplane to monoplane fighters.<\/div>\n<div class=\"src\"><b>Studies of the Polikarpov I-15 and I-16<\/b>Comparative performance context for the He 51&rsquo;s Soviet-supplied opponents in the Spanish Civil War.<\/div>\n<div class=\"src\"><b>MiGFlug Afterburner magazine<\/b>MiGFlug&rsquo;s own aviation-history features on interwar fighters, the Spanish Civil War air war and the birth of the Luftwaffe.<\/div>\n<\/div>\n<p class=\"foot\">Note on figures: performance, weight and production numbers for the He 51 vary between sources and are hedged here as approximate. Cost fields are listed as not reliably recorded because trustworthy interwar German cost data is not available. No confirmed airworthy original He 51 is known to survive; museum aircraft are reproductions.<\/p>\n<\/div>\n<\/section>\n<div id=\"he51-map-data\" 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Germany&rsquo;s first operational fighter, and its first hard lesson in Spain. 1933First flight 1935Luftwaffe&rsquo;s first fighter ~330 km\/hTop speed (~205 mph) ~700Built [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21688,"parent":15960,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"editor_notices":[],"footnotes":""},"class_list":["post-21695","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Heinkel He 51 \u2014 History, Specs &amp; Stories<\/title>\n<meta name=\"description\" content=\"The Heinkel He 51 was the Luftwaffe&#039;s first fighter, outclassed over Spain and relegated to ground attack and pilot training.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/migflug.com\/ar\/\u0637\u0627\u0626\u0631\u0629\/heinkel-he-51\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Heinkel He 51 \u2014 History, Specs &amp; Stories\" \/>\n<meta property=\"og:description\" content=\"The Heinkel He 51 was the Luftwaffe&#039;s first fighter, outclassed over Spain and relegated to ground attack and pilot training.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/migflug.com\/ar\/\u0637\u0627\u0626\u0631\u0629\/heinkel-he-51\/\" \/>\n<meta property=\"og:site_name\" content=\"MiGFlug\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/MiGFlug\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-22T12:27:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:78--.b845\/w:auto\/h:auto\/q:96\/f:best\/https:\/\/migflug.com\/wp-content\/uploads\/2026\/08\/heinkel-he-51-fighter-sdasm.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1218\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@migflug\" \/>\n<meta name=\"twitter:label1\" content=\"\u0648\u0642\u062a \u0627\u0644\u0642\u0631\u0627\u0621\u0629 \u0627\u0644\u0645\u064f\u0642\u062f\u0651\u0631\" \/>\n\t<meta name=\"twitter:data1\" content=\"27 \u062f\u0642\u064a\u0642\u0629\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/migflug.com\\\/aircraft\\\/heinkel-he-51\\\/\",\"url\":\"https:\\\/\\\/migflug.com\\\/aircraft\\\/heinkel-he-51\\\/\",\"name\":\"Heinkel He 51 \u2014 History, Specs & Stories\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/aircraft\\\/heinkel-he-51\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/aircraft\\\/heinkel-he-51\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\/\\/migflug.com\\/wp-content\\/uploads\\/2026\\/08\\/heinkel-he-51-fighter-sdasm.jpg\",\"datePublished\":\"2026-08-22T12:24:37+00:00\",\"dateModified\":\"2026-08-22T12:27:12+00:00\",\"description\":\"The Heinkel He 51 was the Luftwaffe's first fighter, outclassed over Spain and relegated to ground attack and pilot training.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/aircraft\\\/heinkel-he-51\\\/#breadcrumb\"},\"inLanguage\":\"ar\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/migflug.com\\\/aircraft\\\/heinkel-he-51\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ar\",\"@id\":\"https:\\\/\\\/migflug.com\\\/aircraft\\\/heinkel-he-51\\\/#primaryimage\",\"url\":\"https:\\/\\/migflug.com\\/wp-content\\/uploads\\/2026\\/08\\/heinkel-he-51-fighter-sdasm.jpg\",\"contentUrl\":\"https:\\/\\/migflug.com\\/wp-content\\/uploads\\/2026\\/08\\/heinkel-he-51-fighter-sdasm.jpg\",\"width\":1920,\"height\":1218,\"caption\":\"Heinkel He 51 biplane fighter, 1930s. 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