A small single engine, one man airplane. This was first discovered by the allies after the Japanese surrender, the type was found in scattered hiding places around the Japanese Islands.
What was this airplane that never received an Allied code name?
What were the Allied occupation troops to make of this airplane? About a hundred were found complete in hiding. Many hundreds more were under construction. 8000 had been ordered. Complete examples were powered by a 1150 HP Nakajima engine, but with a provision for a variety of engines to be fitted (especially older, obsolete engines the Japanese had plenty of). The construction was of wood and steel, non-strategic materials. The fuselage was tubular, a fairly simple shape to manufacture. The canopy was only semi-covered. The landing gear was not retractable; it was jettisonable. In fact the original landing gear didn’t even have any shock absorption. The only armament was a single bomb under the fuselage that, unlike the landing gear, was not jettisonable; it was fixed in place.
Perhaps its better to think of this as a guided missile. Or a rather frightening smart bomb. In early 1945 the Japanese feared their supply of obsolete aircraft might soon be exhausted by their “Special Attack Units” (during the war, only the Imperial Japanese Navy called these units “Kamikaze”. Post war, it came to be used for all such units). So the Nakajima company was tasked with providing a very simple air frame made of common materials, that could be fitted with any of the obsolete engines available. As is so often the case on these projects, the resulting aircraft was very difficult to fly. And with a maximum speed of 340 mph, that degraded quickly with a bomb or if a lesser engine than the preferred one was used, this plane would have been easy prey for Allied pilots. So of course the plan was to fill the sky, with hundreds of planes on each mission.
The Kamikaze was a brutally effective weapon. Almost 3000 such attacks resulted in the loss of around 50 ships and 9000 casualties (all numbers are inexact because sources disagree). Japan was gearing up in many ways for an expected invasion in late 1945 and there would have been many thousands more Special Attackers had one happened. Waves of such attackers would have certainly caused many more casualties. Fortunately, the little Tsurugi (broadsword) was never used in combat.
This is the Eduard kit of an aircraft found hidden post war.