The Yak-3: built light to win the turning fight

What makes the Yak-3 special

Full Yak-3 specifications

Baseline note: the figures below describe the standard series Yak-3 of 1944 as built at Saratov Factory No. 292 — Klimov VK-105PF2, one 20 mm ShVAK through the propeller hub and two 12.7 mm UBS over the cowling, no external stores of any kind. Deltas for the first 197 aircraft, the all-cannon Yak-3P, the VK-107A and VK-108 machines and the German fighters it was built to beat are in grey. Three cautions apply to every Yak-3 number in print. First, this aeroplane was optimised for one narrow band of the sky and its data sheet says so: quote its speed without quoting the altitude and you have said almost nothing. Second, the weights. Soviet acceptance figures were flown on hand-finished aircraft that had been waxed and polished at the factory, a genuine production step and worth several km/h; a squadron machine after a winter in the open was not that aeroplane. Third, and this is the one most often got wrong: the Yak-3 did not turn well because it had a light wing loading. It did not. Cutting the wing from 17.15 to 14.85 m² while saving only about 230 kg pushed wing loading up from roughly 168 kg/m² on a Yak-1b to about 178 kg/m². What the Yak-3 actually had was the best power loading and the lowest drag of any Soviet fighter in service, which is why it out-climbed and out-accelerated its opposition and could hold a hard turn without bleeding speed. The small wing bought roll rate and drag reduction, not turn radius. Sources that credit its manoeuvrability to a big wing have the physics backwards.

Armament & payload

The Yak-3 carried the lightest battery of any 1944 front-line fighter, and the design accepted that on purpose

One 20 mm ShVAK firing through the hollow propeller shaft and two 12.7 mm UBS synchronised over the cowling: about 2.72 kg (6.0 lb) of metal per second. A Bf 109G-6 with gondola cannon threw more than twice that; a Fw 190A-8 threw nearly three times as much. The Yak-3 was not under-gunned by accident or by shortage. Every kilogram in this aeroplane had to justify itself against the climb rate, and a fourth gun with its ammunition and its structure cost more performance than it bought lethality against the single-engine fighters the Yak-3 was built to kill.

The arrangement had one large virtue beyond weight. All three barrels sat on the centreline within a few centimetres of the thrust line, so there was no convergence range to set and no dispersion cone to learn — which mattered enormously in an air force still sending pilots to the front with a few dozen hours on type. What it did not have was reach or margin for error: nine or ten seconds of cannon fire, no second chance if the first pass missed, and no ability to break up a bomber formation at range. Against Ju 87s and Fw 190 fighter-bombers over the front line that was enough. Against anything armoured, it was not, and Yakovlev spent 1945 trying and failing to fit a 37 mm and a 45 mm gun into an airframe that had no weight left to give. Ammunition figures vary between sources: 150 rounds for the ShVAK and 170 per gun for the UBS are the usual Western numbers, while Russian tables print 120 and 130 to 140 respectively for some production batches. Both are correct for some aircraft, because the fit changed during the run.

Sourcing caveat: salvo weights are the Soviet one-second figures quoted in Russian technical literature, computed on assumptions about rate of fire that do not match Western burst-mass conventions, so cross-type comparisons here are indicative rather than exact. The 91st IAP trial results come from the regiment’s own reports and have never been reconciled against German loss returns.

Variants

Yakovlev spent two years trying to put a bigger engine into the Yak-3 and never managed to make one stay in

The Yak-3 began as a failure. In 1941 the designation belonged to the I-30, an all-metal fighter with slats and three cannon that never entered production because there was no duralumin to build it from. The name was reused in 1943 for something almost opposite in spirit: a Yak-1 with less of everything. The Yak-1M prototype flew on 28 February 1943 with the wing cut to 14.85 m², the oil coolers moved into the wing roots and the fuel reduced; the second prototype, the Dublyor, added plywood fuselage covering in place of fabric, a mastless aerial, a reflector sight and improved cooling. State trials followed in October 1943 and series production began at Saratov in March 1944.

What made it work was the same thing that limited it. Yakovlev had no more power available — the VK-105PF2 was the end of that engine’s development and gave 1,290 hp, which is what a Merlin had produced in 1940. So the entire performance gain came from subtraction: a smaller wing, less fuel, less structure, fewer fittings, no bomb racks, no rocket rails, no external anything, and a factory polish to recover the last few km/h. It produced the best power-to-weight ratio and the best low-level climb of any fighter in Soviet service. It also produced an aeroplane with about an hour of endurance, three guns, a wooden wing whose plywood could delaminate on the pull-out from a fast dive, and a structural life short enough that the VVS planned around replacing airframes rather than repairing them. In 1944, with Soviet factories delivering fighters faster than the front could lose them, that was a rational bargain. In almost any other year of the war it would not have been.

Everything that follows the main production run is an attempt to escape those limits, and almost none of it succeeded. The VK-107A gave 720 km/h and an engine that needed constant attention; the VK-108 gave 745 km/h, the fastest any Soviet piston aeroplane ever flew, and a thermal problem nobody solved; the big-gun conversions worked as guns and ruined the aeroplane; the rocket-boosted version killed its pilot. Only the Yak-3P, which changed nothing but the guns, went into production — and by then the war was over.

Yak-1M and Yak-1M Dublyor (1943, 2 prototypes)

The aeroplane itself, under its development name. First prototype flew 28 February 1943 with the reduced wing and wing-root oil coolers; the Dublyor of September 1943 added the plywood-covered rear fuselage, mastless aerial and reflector sight that defined the production standard.

Yak-3 (VK-105PF2) (March 1944 to 1946, 4,848 of all marks)

The production aircraft, built at Factory No. 292 at Saratov (3,840) and Factory No. 31 at Tbilisi (1,008). 4,111 were delivered before the German surrender — 2,180 in 1944 and 1,934 in the first half of 1945 — with 737 more built in peacetime. First 197 aircraft with one UBS, all later machines with two.

Yak-3P (April 1945 to 1946, 596 built)

Three Berezin B-20 cannon, one in the vee and two synchronised, for barely more weight than the old mixed fit and about 3.5 kg/s of fire. The definitive gun installation, delivered too late for any of the 596 aircraft to see combat. Served into the early 1950s.

Yak-3T, Yak-3T-57 and Yak-3K (1944 to 1945, prototypes and a handful)

The big-gun dead ends. Yak-3T with a 37 mm N-37 (25 rounds) and two B-20, cockpit displaced 400 mm aft to balance it, defeated by overheating; Yak-3T-57 with a 57 mm OKB-16-57, one aircraft; Yak-3K with the 45 mm NS-45, judged inferior to the Yak-9K which had the airframe weight to absorb it.

Yak-3 (VK-107A) (1945 to 1946, 48 built)

All-metal airframe, 1,650 hp VK-107A, two 20 mm B-20, 720 km/h at 5,750 m — on trials the fastest Soviet fighter of the war. Reached limited squadron service. The engine overheated persistently and what supply there was went to the Yak-9U instead, which ended the programme rather than the aeroplane failing.

Yak-3 (VK-108), Yak-3TK and Yak-3PD (1944 to 1945, one or two each)

The altitude and speed experiments. VK-108 of about 1,850 hp reached 745 km/h and never ran cool enough to be trusted; the Yak-3TK added TK-3 turbochargers to a VK-107A; the Yak-3PD on a VK-105PD high-altitude engine was aimed at reconnaissance aircraft over 13,000 m. None was produced.

Yak-3RD (1945, 1 built)

Glushko RD-1 liquid-fuel rocket motor in the tail on top of the VK-105PF2, credited with 782 km/h. Destroyed on 16 August 1945, killing test pilot Viktor Rastorguyev. Soviet interest in mixed-power fighters effectively ended there.

Yak-3U and Yak-3UTI (1945, prototypes)

The most consequential failures in the list. Yak-3U replaced the Klimov vee with a 1,850 hp Shvetsov ASh-82FN radial in a lengthened, all-metal airframe and reached about 705 km/h; the two-seat Yak-3UTI followed with the smaller ASh-21. The Yak-3U went nowhere, but the Yak-3UTI became the Yak-11, of which nearly 5,000 were built and which is the reason so many Yak-shaped aeroplanes still fly.

Allied and postwar service (1944 to about 1952, no licence production anywhere)

Not one Yak-3 was built outside the Soviet Union. Free French Normandie-Niémen converted from the Yak-9 in late July 1944 and fought the rest of the war on it. Yak-3s equipped the Polish 1st Mixed Air Corps from the autumn of 1944 alongside Yak-9s and stayed with Polish fighter regiments into the postwar years. Yugoslav Partisan units received Yak-3s in early 1945 with Yak-7s, Yak-9s and Il-2s; the 1948 break with Stalin cut off spares and fuel overnight and the Yak fleet was progressively cannibalised to keep a fraction of it airworthy. Soviet regiments flew the type until 1952.

On survivors, the Yak-3 poses a problem the Spitfire and Mustang do not, and it is worth stating exactly. This was a deliberately disposable aeroplane: a wooden wing, casein-bonded plywood, an airframe life the VVS measured in a season at the front rather than in years, and no reason whatever to keep one once jets arrived. Around 4,848 were built and the number of genuine wartime airframes that can be seen anywhere today is in low single figures. The best attested is the Yak-3 at the Musée de l’Air et de l’Espace at Le Bourget, restored in Normandie-Niémen markings and the surviving link to the 38 aircraft Stalin gave the regiment in June 1945, which staged through Poznan, Prague, Stuttgart and Saint-Dizier and landed at Le Bourget on 20 June; the rest went to Toussus-le-Noble in February 1946, were used as trainers without spares and were gradually cannibalised out of existence. Aircraft displayed on plinths at Orenburg and outside the Museum-Panorama of the Battle of Stalingrad at Volgograd should be treated with care, since Soviet and Russian monument aircraft of this kind are very often rebuilt or newly made rather than recovered. Everything airworthy is a new-build and should be described as one. Between 1991 and 2002 the Strela works at Orenburg produced 21 aircraft to Yak-3, Yak-7 and Yak-9 patterns from original drawings and tooling, of which 12 all-metal Yak-3M were laid down in 1992 for collectors, with later machines marketed as Yak-3U and Yak-3UA. They are powered by reconditioned Allison V-1710s, or by Pratt & Whitney R-1830 and R-2000 radials in the Yak-3U line — a Yak-3UPW on an R-2000 set a class speed record of 655 km/h (407 mph) at Bonneville on 10 October 2011, which is a fine number and not a Yak-3 number. They live mostly in the United States, with others in Germany, Australia and New Zealand. Separately, a number of surplus Yak-11 trainers have been rebuilt into Yak-3 lookalikes over the years, which muddles registries further. All of these are metal where the original was wood, carry engines Klimov never made, weigh and balance differently and fly a great deal more gently than a 1944 machine ever did. They are superb reproductions of a shape. None of them is the aeroplane the Luftwaffe warned its pilots about.

From wartime lightweight to airshow warbird

Twelve Yak-3 stories

The Yak-3 in pictures

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The Yak-3 in motion

A featured Yak-3 video is coming soon. In the meantime, the photo gallery above shows both wartime-preserved airframes and the Allison-powered Yak-3M warbirds that keep the type flying.

Where the Yak-3 flew

The record the Yak-3 earned

The Yak-3’s reputation rests less on a single tally than on where and how it fought: the low-altitude turning battles of 1944–45, where its climb and agility told. Its most-quoted successes belong to the Free French Normandie-Niemen regiment, whose figures are widely cited but, like most wartime claims, best read with caution.

Compare the combat record of every military aircraft. Figures as of July 2026.

Everything people ask about the Yak-3

Continue the tour

Every fact, checked

• Musée de l’Air et de l’Espace — Yakovlev Yak-3France’s national air museum; holds an original Normandie-Niemen aircraft (its English spec page carries some numeric typos).
• Smithsonian Air & Space — The French-Russian ConnectionDetailed account of Normandie-Niemen and the 40/37 return flight, with pilot quotes.
• Military Aviation Museum (Virginia Beach)Operates an airworthy new-build Yak-3M; good on the Allison-engine replica story.
• Warfare History NetworkNormandie-Niemen aces, dated combat episodes and victory totals.
• flugzeuginfo.net — Yak-3 dataConsensus technical figures for length, weight, speed and production.
• Old Machine Press — Yak-3 VK-108Rigorous technical history, useful for why the 720 km/h figure is misattributed.
• Skytamer — Yakovlev Yak-3MThe 1991-onward new-production replicas and current airworthy examples.
• William Green, Famous Fighters of the Second World War, Vol. 2 (Macdonald, 1957)Print reference; the traceable origin of the “avoid combat below 5,000 m” claim.