Ki-21-IIb Take Off Performance, lift drag Coefficient, rate of climb.
 

Hi

Is there any data on the performance of the Ki-21-IIb (Army Type 97 Heavy Bomber, Model IIB), in reference to take off speed or Lift Coefficient or drag Coefficient, and wind tunnel data.

I am keen to know what would be the min/max takeoff speed for such an aircraft when fully loaded?

Is there any surviving Ki-21-IIb (Army Type 97 Heavy Bomber, Model IIB) in any museums?

Many thanks for all the help.

Kind regards.