Senden’s span was 12.5 m, total length was 13 m, the main wing area was 22 m2 and the total weight was 4-4 tons.
Senden’s size was slightly larger compared with Manshu Ki-98, and the total weight was almost same.
The wing area of Senden was 2m2 smaller that Ki-98.
The engine was the Mitsubishi "Ha 43" 41 type, and because of the almost same engine system as the Ki 98, the overall shape became similar.
But Senden had middle wing and the fuselage which support the horizontal tail stabilizer was slightly long.
The problem was in the engine, as all of the other Japanese prototypes were.
According to "Zero Fighter" by Jiro Horikoshi , co-authored Masatake Okumiya ,
"In the spring of 1944, when we made the fuselage for the engine experiment and carried out the operation test with a prototype engine, the engine cylinder temperature distribution was good, and it was a prospect of practical use if limited to engine cooling".
However, the element that the performance decrease was repeatedly increase every time at the operation test, and
the Vulkan coupling to drive supercharger did not work well, and the outlook was not bright at all.
Moreover, unfortunately, because it was found that there was a possibility of vibration of the tail stabilizer by the propeller flow in the wind tunnel test, position change of the horizontal tail stabilizer was needed, the progress with a design wasn't desirable.
Technical difficulties were expected because Senden was an inexperienced special type aircraft.
Mitsubishi actively received orders for Senden, chief designer Eitaro Sano and engineers worked on the development with great enthusiasm, but most of the people in the company hesitated to focus on Senden. Under these circumstances, the company's upper management's willingness to Senden gradually faded.
Therefore, the engineers in charge of Senden were put in a painful position.
After that, in October 1944, prototype models were consolidated for the unification of the prototype model reduction, and the Senden was truncated.
Compared to the Ki 98, which continued to work until just before the completion of the prototype, the Senden engineers in charge were unlucky.