The Shinden could have been a remarkable fighter but even in 1945 it had numerous bugs that killed more than a few test pilots early on. One of it's worst faults was it's tendency to pull hard to the right because of the rear propellar spinning without a counter that the German Arrow had. Another problem was with a loss of power the Shinden would not glide and would fall backwards due to the huge weight imbalance to the rear from the large engine. Third problem was the engine was immediately in danger if a fighter attacked from the rear. The upside was the Shinden was probably the only Japanese fighters to carry twin 30 mm cannons which were greatly needed as 20 mm cannons were shown to be too weak against B-29. Does anyone know if this plane exist in any museums any more or were all destroyed from allied air attacks before WW2 ended?