Secret Weapons of the IJA / IJN - Concepts, Projects and Operational Systems
While many sources cover the fantastic aircraft developments of the Germans in World War 2, Japanese engineers were hard at work on their own designs.There are a total of 28 Secret Weapons of the IJA / IJN - Concepts, Projects and Operational Systems in the Military Factory. Entries are listed below in alphanumeric order (1-to-Z). Flag images indicative of country of origin and not necessarily the primary operator.
This listing attempts to include all manner of special Imperial Japanese Army / Imperial Japanese Navy aircraft projects related to the World War 2 period covering operational, conceptual, and development types. Designs that may have become available in 1946 are part of this showcase - should the war have been prolonged.
The twin-seat, twin-engine Aichi S1A Denko was intended as a successor to the Nakajima J1N1 Gekkou line in the night-fighter role for Japan during World War 2.
Powered by a pulsejet engine, the Kawanishi Baika was to serve in the kamikaze attack role - none were built by the end of World War 2.
The Kawanishi J6K1 Jinpu, developed as a land-based interceptor, appeared in paper form during 1943 but was destined to never enter serial production during World War 2.
The Kawanishi K-200 jet-powered flying boat never materialized beyond the planning stage - the end of the war ended any design hopes for Japan.
The Kawasaki Ki-108 was designed to fulfill a standing heavy interceptor requirement for the Imperial Japanese Army.
First flight of the Kawasaki Ki-64 heavy fighter was undertaken in December of 1943 though the program was ultimately given up in 1944 with only one example completed.
The Kawasaki Ki-88 failed to impress during its mock-up stage that it was not ordered into production for the Imperial Japanese Army Air Force.
An Allied air raid during early 1945 ended development of the Kawasaki Ki-91 four-engined heavy bomber for Japan.
Since 1937, Japanese engineers were working on the ramjet concept that was to power the proposed Kayaba Katsuodori ramjet-and-rocket-powered interceptor of World War 2.
The Kyushu J7W Shinden was specifically developed to combat the destructive Boeing B-29 Superfortresses wreaking havoc on Japanese infrastructure.
The sole prototype of the Mansyu Ki-98 was destroyed by the Japanese before the surrender of 1945 which officially ended World War 2.
The Mitsubishi J8M rocket-propelled interceptor was based on the German Messerschmitt Me 163 Komet - acquired by Japan via purchase of manufacturing rights.
The Mitsubishi Ki-73 made it to the design stage and no further - Allied intelligence reports assigned it the name of Steve believing it was to enter service soon.
Born during the last desperate months of World War 2, the Japanese Army Mitsubishi Q2M was to become an Anti-Submarine Warfare platform but did not progress beyond the paper stage.
What began as an Army long-range heavy bomber program for Japan during World War 2 became the short-lived Nakajima G10N Fugaku for the Imperial Japanese Navy - none were produced.
The Nakajima J1N1 Gekko served several roles in the Imperial Japanese Navy of World War 2 including reconnaissance, night-fighter, and kamikaze strikes.
The Nakajima J5N interceptor prototype never managed to live up to its IJN requirements - managing just six prototypes before its end came in February of 1945.
Based on the German Me 262 jet-powered fighter, the Nakajima Kikka was one of the Japanese contributions to jet-based aerial warfare before the end of World War 2.
The Nakajima Ki-115 Tsurugi became a dedicated suicide fighter for Japan by the closing stages of World War 2.
The Imperial Japanese Army interpretation of the German Messerschmitt Me 262 plans was to become the Nakajima Ki-201 jet fighter.
The Nakajima Ki-87 had origins in work begun during 1942 but the arrival of the Boeing B-29 Superfortress heavy bomber by the Allies accelerated interceptor designs like it.
The Rikugun Ki-202 was a more evolved form of the earlier Mitsubishi Ki-200, itself a direct copy of the German Messerschmitt Me 163 rocket plane.
Intended for the Imperial Japanese Army of World War 2, the Rikugun Ki-93 heavy fighter only saw one completed prototype before the end, a second laying unfinished.
The Tachikawa Ki-106 was an all-wooden form of the classic Nakajima Ki-94 Hayate fighter line.
The end of World War 2 in 1945 signaled the end of the Tachikawa Ki-74 long-range reconnaissance bomber project for Japan.
The Tachikawa Ki-94 emerged through two very different fighter forms in the latter part of World War 2 - only one was furthered into prototype form.
The macabre Yokosuka MXY7 Ohka suicide aircraft never materialized as a serious threat to Allied warships in the Pacific.