{"id":31935499,"date":"2026-11-09T11:28:39","date_gmt":"2026-11-09T10:28:39","guid":{"rendered":"https:\/\/migflug.com\/afterburner\/kawasaki-c-1-japan-jet-transport-jasdf-history-retirement\/"},"modified":"2026-11-09T11:29:06","modified_gmt":"2026-11-09T10:29:06","slug":"kawasaki-c-1-japan-jet-transport-jasdf-history-retirement","status":"publish","type":"post","link":"https:\/\/migflug.com\/afterburner\/it\/kawasaki-c-1-japan-jet-transport-jasdf-history-retirement\/","title":{"rendered":"Kawasaki C-1: Japan&rsquo;s First Jet Transport and Its 50-Year Career"},"content":{"rendered":"<style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style>\r\n<!-- mfsh:top -->\r\n\r\n<style>\r\n.mfsh-trigger{display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 18px;margin:0 0 26px;border:2px solid 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The fitting detail was which two they were: serials 28-1001 and 28-1002, the very first Kawasaki C-1s ever built, the prototypes that had opened the programme more than half a century earlier. One wore a blazing phoenix livery with the words &ldquo;C-1 Forever&rdquo; on its side.<\/p>\r\n\r\n<p>The <a href=\"https:\/\/migflug.com\/aircraft\/kawasaki-c-1\/\">Kawasaki C-1<\/a> was Japan&rsquo;s first home-grown jet transport, a compact, high-winged airlifter that looked like a scaled-down American Starlifter. Only 31 were built and none ever left Japan, yet for five decades it carried the <a href=\"https:\/\/migflug.com\/air-forces\/japan-air-self-defense-force\/\">Japan Air Self-Defense Force<\/a>&rsquo;s troops, paratroopers and cargo, and it spawned one of the oddest-looking aircraft in Japanese service.<\/p>\r\n\r\n\r\n<div style=\"background:#f4f6f9;border:1px solid #e2e7ee;padding:18px 22px;margin:22px 0 26px\"><p style=\"margin:0 0 8px;font-weight:700;color:#0d1117\">Quick Facts<\/p><ul style=\"margin:0;padding-left:18px\"><li style=\"margin:4px 0\"><strong>Type:<\/strong> Twin-turbofan tactical transport<\/li><li style=\"margin:4px 0\"><strong>Builder:<\/strong> Kawasaki (prime contractor) for NAMC<\/li><li style=\"margin:4px 0\"><strong>First flight:<\/strong> 12 November 1970<\/li><li style=\"margin:4px 0\"><strong>In service:<\/strong> 1974 to 14 March 2025, Japan Air Self-Defense Force only<\/li><li style=\"margin:4px 0\"><strong>Engines:<\/strong> 2 &times; Pratt &amp; Whitney JT8D-M-9, licence-built by Mitsubishi<\/li><li style=\"margin:4px 0\"><strong>Crew:<\/strong> Five: two pilots, flight engineer, navigator, loadmaster<\/li><li style=\"margin:4px 0\"><strong>Capacity:<\/strong> 60 troops, 45 paratroopers or 36 stretchers<\/li><li style=\"margin:4px 0\"><strong>Built:<\/strong> 31, including two prototypes<\/li><\/ul><\/div>\r\n\r\n\r\n<h2 style=\"padding-top:22px\">Replacing a wartime veteran<\/h2>\r\n\r\n<p>By the mid-1960s, the JASDF&rsquo;s transport fleet was built around the <a href=\"https:\/\/migflug.com\/aircraft\/c-46-commando\/\">Curtiss C-46 Commando<\/a>, a piston-engined Second World War design. Newer aircraft such as the <a href=\"https:\/\/migflug.com\/aircraft\/c-130-hercules\/\">C-130 Hercules<\/a> had left it far behind, and rather than buy abroad, Japan decided to build its own replacement.<\/p>\r\n\r\n<p>The job went in 1966 to the Nihon Aircraft Manufacturing Corporation (NAMC), the industry consortium that had just produced the YS-11 airliner. NAMC made Kawasaki the prime contractor, which is why the aircraft carries its name, while Mitsubishi built the middle and rear fuselage and other consortium members made the wings and control surfaces. It was one of the first aircraft programmes of postwar Japan.<\/p>\r\n\r\n\r\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0 8px\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/dhHXDm70SQQ\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allowfullscreen><\/iframe><\/div>\r\n\r\n<p style=\"font-size:13px;color:#777;text-align:center;font-style:italic;margin:0 0 24px\">Weapon Detective on the Kawasaki C-1 and its place in Japan&rsquo;s aviation industry.<\/p>\r\n\r\n<p>The prototype XC-1 first flew on 12 November 1970, production began the following year, and the type entered regular JASDF service in 1974. Two Pratt &amp; Whitney JT8D turbofans, built under licence by Mitsubishi, hung under the high wing, and a rear ramp under the T-tail opened onto a pressurised hold.<\/p>\r\n\r\n<h2 style=\"padding-top:22px\">Small, short-legged and very capable<\/h2>\r\n\r\n<p>The C-1 was designed for short, tactical hops. Leading-edge slats and four-stage Fowler flaps gave it strong short-field performance; Aviation Wire lists its shortest take-off run at 460 metres. The hold could take 60 fully equipped troops, 45 paratroopers or 36 stretchers, or vehicles loaded up the rear ramp, and its rear doors could be opened in flight to drop paratroopers and stores.<\/p>\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img decoding=\"async\" class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" width=\"1024\" src=\"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/11\/kawasaki-c-1-paratroopers-narashino-2009.jpg\" alt=\"A JASDF Kawasaki C-1 transport dropping paratroopers of the JGSDF 1st Airborne Brigade over Narashino\" style=\"width:100%;height:auto;max-width:100%;display:block\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">A C-1 drops paratroopers of the Japan Ground Self-Defense Force&rsquo;s 1st Airborne Brigade at Narashino in January 2009. The hold took up to 45 paratroopers. Photo: Los688 \/ public domain<\/figcaption><\/figure>\r\n\r\n\r\n<p>Its crew of five was generous by modern standards: two pilots, a flight engineer, a navigator and a loadmaster. Its successor, the C-2, needs only two pilots and a loadmaster. Top speed was about 806 km\/h, faster than the turboprops it was often compared with.<\/p>\r\n\r\n\r\n<div style=\"background:#f8f9fa;border-left:4px solid #1565c0;padding:20px 22px;margin:18px 0 24px;font-size:16px;line-height:1.7\"><div><em>&ldquo;The JASDF Kawasaki C-1s look, feel and smell &ldquo;old school&rdquo; and they do have a certain character about them.&rdquo;<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>AeroResource<\/strong> &mdash; Operational report from Iruma Air Base, 2019<\/div><\/div><\/div>\r\n\r\n\r\n<h2 style=\"padding-top:22px\">The Okinawa problem<\/h2>\r\n\r\n<p>The C-1&rsquo;s weakness was range. With its maximum payload of 11.9 tonnes it could fly only about 1,300 km, and AeroResource notes that the short reach was deliberate, keeping the aircraft within Japan&rsquo;s borders in line with the defensive policy of the time.<\/p>\r\n\r\n<p>Then, in 1972, the United States returned Okinawa to Japanese rule. From most of the home islands, the C-1 could not fly there directly with a worthwhile load. Combined with the defence budget cuts of the 1970s, that sealed its fate: orders were cut, and Japan turned to the C-130H Hercules instead. The last five C-1s delivered, designated C-1A, were given an extra 4,730-litre fuel tank to stretch their legs, but only 31 were ever built.<\/p>\r\n\r\n<p>The programme mattered beyond the air force. Japan&rsquo;s trade ministry, MITI, at one stage chose the C-1 design as the basis for a next-generation commercial transport, before dropping the idea to concentrate on international work such as Boeing&rsquo;s 767. According to political scientist Richard J. Samuels, as summarised on Wikipedia, lessons in structural design and fatigue prevention from the C-1 flowed into Japanese car and railway manufacturing.<\/p>\r\n\r\n<p>Its crews grew fond of it, and Iruma liked to show it off. When IrumaFor the 60th anniversary of the 2nd Tactical Airlift Group in 2018,rsquo;s 2nd Tactical Airlift unit marked its 60th anniversary in 2018, C-1 78-1026 was painted in a striking red and white scheme nicknamed &ldquo;Kabuki&rdquo;, AeroResource recorded, before returning to standard camouflage in early 2019.<\/p>\r\n\r\n\r\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0 8px\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/gypvQKhZxm8\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allowfullscreen><\/iframe><\/div>\r\n\r\n<p style=\"font-size:13px;color:#777;text-align:center;font-style:italic;margin:0 0 24px\">A Kawasaki C-1 flying display at the Iruma air show in 2012.<\/p>\r\n\r\n<h2 style=\"padding-top:22px\">The Platypus and the Asuka<\/h2>\r\n\r\n<p>The C-1 airframe was adapted for some unusual jobs. In 1983 and 1984 Kawasaki converted the 21st aircraft, 78-1021, into the EC-1 electronic warfare training aircraft. Its bulbous nose radome and bulging fairings earned it the nickname &ldquo;Platypus&rdquo;, a name later passed on to its successor, the EC-2 based on the C-2.<\/p>\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img decoding=\"async\" class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" width=\"1024\" src=\"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/11\/kawasaki-ec-1-platypus-78-1021-iruma-2024.jpg\" alt=\"The JASDF Kawasaki EC-1 electronic warfare training aircraft 78-1021 with its bulbous nose radome at Iruma Air Base\" style=\"width:100%;height:auto;max-width:100%;display:block\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">The one-off EC-1 electronic warfare trainer, converted from the 21st C-1, at Iruma in June 2024. Its nose radome and fairings earned it the nickname &ldquo;Platypus&rdquo;. Photo: Hunini \/ CC BY-SA 4.0<\/figcaption><\/figure>\r\n\r\n\r\n<p>Stranger still was the Asuka, a quiet short take-off and landing research aircraft built for Japan&rsquo;s National Aerospace Laboratory on a C-1 airframe. It had four FRJ710 turbofans mounted on top of the wing to blow air over the flaps, and between 1985 and 1989 it made 97 test flights. It is now preserved at the Gifu-Kakamigahara Air and Space Museum.<\/p>\r\n\r\n<h2 style=\"padding-top:22px\">Fifty years at Iruma<\/h2>\r\n\r\n<p>The C-1 served with three squadrons over the years. As the larger Kawasaki C-2, first flown in 2010 and able to lift about three times the payload, came into service, the remaining C-1s were concentrated with the 402nd Tactical Airlift Squadron at Iruma Air Base near Tokyo in April 2018.<\/p>\r\n\r\n\r\n<div style=\"max-width:550px;margin:0 auto 28px\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/platform.twitter.com\/embed\/Tweet.html?id=1900624291240001920&theme=light\" style=\"width:100%;height:560px;border:none;overflow:hidden\" allowfullscreen><\/iframe><\/div>\r\n\r\n\r\n<p>The C-1&rsquo;s record was not spotless: four were lost in accidents over five decades, two of them together in a formation crash in 1983. But the type kept flying long after most of its contemporaries had gone. The JASDF gave prototype 28-1002 its phoenix paint scheme in early 2025, the EC-1 retired on 13 March, and the following day the last two C-1s made their farewell flights.<\/p>\r\n\r\n\r\n<div style=\"background:#f8f9fa;border-left:4px solid #d32f2f;padding:20px 22px;margin:18px 0 24px;font-size:16px;line-height:1.7\"><div><em>&ldquo;Today, Friday 14 March 2025, the Japanese Air Self Defense Force (JASDF) said goodbye to its last two C-1 transport aircraft.&rdquo;<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Robin Polderman<\/strong> &mdash; The Unit Report, 14 March 2025<\/div><\/div><\/div>\r\n\r\n\r\n<p>According to The Unit Report, one more C-1, 08-1030, had flown from Iruma to Hamamatsu, home of the JASDF museum, two days before the end. A small, short-legged transport that was never sold abroad had served its country for more than 50 years.<\/p>\r\n\r\n\r\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0 8px\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/ezdtGetL5NY\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allowfullscreen><\/iframe><\/div>\r\n\r\n<p style=\"font-size:13px;color:#777;text-align:center;font-style:italic;margin:0 0 24px\">C-1s 030 and 002, the second prototype, departing Iruma Air Base one after the other.<\/p>\r\n\r\n<p>The C-1 was never going to win a range contest, but that was never its job. It proved that postwar Japan could design and build its own military jets, and it handed its role, its crews and even its nickname-worthy EW mission straight on to the next Kawasaki airlifter.<\/p>\r\n\r\n\r\n\r\n<p><em>Sources: Wikipedia (Kawasaki C-1; 402nd Tactical Airlift Squadron), AeroResource (JASDF Iruma operational report, 2019), Aviation Wire (January and February 2025), The Unit Report (14 March 2025), Ukraine State Aviation Museum<\/em><\/p>\r\n<!-- mfsh:bottom -->\r\n\r\n<button type=\"button\" class=\"mfsh-trigger mfsh-bottom\" data-mfsh-placement=\"bottom\" aria-haspopup=\"dialog\"><svg><use href=\"#mfsh-i-share\"\/><\/svg>Share this story<\/button>\r\n\r\n<!-- \/mfsh:bottom -->\r\n\r\n\r\n<style>.mfq{margin:34px 0 8px}.mfq h2{font:26px\/1.3 \"Gilroy semiBold\",Helvetica,Arial,sans-serif;color:#0d1117;padding-top:22px;margin:0 0 6px}.mfq .qa details{border-top:1px solid #5C91FF;margin:0;padding:0}.mfq .qa details:last-of-type{border-bottom:1px solid #e2e7ee}.mfq .qa summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 26px;font:18px\/1.7 \"Gilroy semiBold\",Helvetica,Arial,sans-serif;color:#0d1117}.mfq .qa summary::-webkit-details-marker{display:none}.mfq .qa summary::after{content:\"+\";font:24px Helvetica,sans-serif;color:#3568e0;flex:0 0 auto}.mfq .qa details[open] summary::after{content:\"\\2013\"}.mfq .qa details:hover summary{color:#3568e0}.mfq .qa .a{font:16px\/1.7 \"Gilroy regular\",Helvetica,Arial,sans-serif;color:#454e5e;padding:0 26px 24px}.mfq .qa .a a{color:#3568e0}@media(max-width:680px){.mfq .qa summary{padding:18px 14px;font-size:17px}.mfq .qa .a{padding:0 14px 20px}}<\/style>\r\n\r\n\r\n<section class=\"mfq\"><h2>Frequently Asked Questions<\/h2><div class=\"qa\"><details open><summary>What was the Kawasaki C-1?<\/summary><div class=\"a\">The Kawasaki C-1 was a twin-turbofan tactical transport aircraft developed in Japan by the NAMC consortium, with Kawasaki as prime contractor. It first flew on 12 November 1970, entered JASDF service in 1974 and replaced the Second World War-era C-46 Commando. Only 31 were built.<\/div><\/details><details><summary>When did the Kawasaki C-1 retire?<\/summary><div class=\"a\">The Japan Air Self-Defense Force retired its last two Kawasaki C-1s on 14 March 2025 at the end of the 2024 fiscal year. They were the two original prototypes, 28-1001 and 28-1002. The EC-1 electronic warfare variant had retired a day earlier, on 13 March 2025.<\/div><\/details><details><summary>Why was the Kawasaki C-1 range so short?<\/summary><div class=\"a\">With its maximum payload of 11.9 tonnes the Kawasaki C-1 could fly only about 1,300 km. AeroResource reports this was deliberate, keeping it within Japan&rsquo;s borders. After Okinawa returned to Japanese rule in 1972, the C-1 could not reach it directly with a useful load, and Japan bought C-130H Hercules instead.<\/div><\/details><details><summary>How many people could the Kawasaki C-1 carry?<\/summary><div class=\"a\">The Kawasaki C-1 could carry 60 fully equipped troops, 45 paratroopers or 36 stretchers, or vehicles and palletised cargo loaded through its rear ramp. It needed a crew of five: two pilots, a flight engineer, a navigator and a loadmaster.<\/div><\/details><details><summary>What is the EC-1 Platypus?<\/summary><div class=\"a\">The EC-1 was a one-off electronic warfare training aircraft converted by Kawasaki from the 21st C-1, serial 78-1021, in 1983 and 1984. Its bulbous nose radome and fairings earned it the nickname Platypus. It served until 13 March 2025, and its successor, the C-2-based EC-2, inherited the nickname.<\/div><\/details><details><summary>What replaced the Kawasaki C-1?<\/summary><div class=\"a\">The Kawasaki C-1 was replaced by the larger Kawasaki C-2, which first flew on 26 January 2010 and can lift about three times the C-1&rsquo;s payload. All remaining C-1s were concentrated at Iruma Air Base in April 2018, and the last were retired in March 2025.<\/div><\/details><\/div><\/section>\r\n\r\n\r\n\r\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What was the Kawasaki C-1?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The Kawasaki C-1 was a twin-turbofan tactical transport aircraft developed in Japan by the NAMC consortium, with Kawasaki as prime contractor. It first flew on 12 November 1970, entered JASDF service in 1974 and replaced the Second World War-era C-46 Commando. Only 31 were built.\"}},{\"@type\":\"Question\",\"name\":\"When did the Kawasaki C-1 retire?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The Japan Air Self-Defense Force retired its last two Kawasaki C-1s on 14 March 2025 at the end of the 2024 fiscal year. They were the two original prototypes, 28-1001 and 28-1002. The EC-1 electronic warfare variant had retired a day earlier, on 13 March 2025.\"}},{\"@type\":\"Question\",\"name\":\"Why was the Kawasaki C-1 range so short?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"With its maximum payload of 11.9 tonnes the Kawasaki C-1 could fly only about 1,300 km. AeroResource reports this was deliberate, keeping it within Japan\u2019s borders. After Okinawa returned to Japanese rule in 1972, the C-1 could not reach it directly with a useful load, and Japan bought C-130H Hercules instead.\"}},{\"@type\":\"Question\",\"name\":\"How many people could the Kawasaki C-1 carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The Kawasaki C-1 could carry 60 fully equipped troops, 45 paratroopers or 36 stretchers, or vehicles and palletised cargo loaded through its rear ramp. It needed a crew of five: two pilots, a flight engineer, a navigator and a loadmaster.\"}},{\"@type\":\"Question\",\"name\":\"What is the EC-1 Platypus?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The EC-1 was a one-off electronic warfare training aircraft converted by Kawasaki from the 21st C-1, serial 78-1021, in 1983 and 1984. Its bulbous nose radome and fairings earned it the nickname Platypus. It served until 13 March 2025, and its successor, the C-2-based EC-2, inherited the nickname.\"}},{\"@type\":\"Question\",\"name\":\"What replaced the Kawasaki C-1?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The Kawasaki C-1 was replaced by the larger Kawasaki C-2, which first flew on 26 January 2010 and can lift about three times the C-1\u2019s payload. All remaining C-1s were concentrated at Iruma Air Base in April 2018, and the last were retired in March 2025.\"}}]}<\/script><div style=\"background:#f0f4ff;border-left:4px solid #5C91FF;padding:16px 20px;margin:32px 0 8px\"><p style=\"margin:0 0 8px;font-weight:600;color:#333\">Related Posts<\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/japan-xec-2-platypus-stand-off-jammer-operational-testing-2026\/\">The Transport That Became a Jammer<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/japan-ec-2-platypus-electronic-warfare-jet-first-flight-2026\/\">Japan&rsquo;s EC-2 Electronic Warfare Jet &mdash; Nicknamed the &lsquo;Platypus&rsquo; &mdash; Takes Its First Flight<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/transall-c-160-franco-german-tactical-airlifter-history-retirement\/\">Transall C-160: The Franco-German Airlifter That Flew 60 Years<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/kc-390-vs-c-130j-vs-a400m-tactical-airlifter-comparison\/\">KC-390 vs C-130J vs A400M: What the Makers Actually Publish<\/a><\/p><\/div>\r\n","protected":false},"excerpt":{"rendered":"<p>The Kawasaki C-1 was Japan&rsquo;s first home-built jet transport. Only 31 were made, its range was famously short, and it served the JASDF for five decades until March 2025.<\/p>","protected":false},"author":23,"featured_media":31935395,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[666,664],"tags":[],"class_list":["post-31935499","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-history-and-legends","category-military-aviation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Kawasaki C-1: Japan&#039;s First Jet Transport | MiGFlug<\/title>\n<meta name=\"description\" content=\"Kawasaki C-1: Japan&#039;s first home-built jet transport, the short-legged airlifter that served the JASDF for five decades until March 2025.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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