[KEPOS]

Considering that the prototype never got off the ground, any FM for this would have to be an educated guess.

The first of the two prototypes made a number of flights before the war ended.

The Shinden's first flight was on August 3, 1945. The other flights were on the 6th and 9th of August. The war ended six days later.

http://www.j-aircraft.com/artwork/kyush ... orther.htm

http://en.wikipedia.org/wiki/Ky%C5%ABsh%C5%AB_J7W