By what standards should its performance be modelled? This probably is the case with most aircraft anyway, but I can't help but wonder. Many aircrafts were modified and jacked-up, polished and customized after it reached the battle field, so AH probably selects the figures and data collected from the factory standard aircraft.
But recently, I've read the actual performance of Ki-84s kept on dropping all through its service, since it was the last days of the War, and actual performance drastically differed between when the plane was produced. It says the difference between the 1943 prototypes, first production models, first planes to meet duty in March 1944, and the last batch to meet service in 1945 were all different. Especially after wooden parts were used in the Ki-84 II(Ki-106 and Ki-113). It also describes the quality of the heart of performance, which was the Ha-45 engine, kept on dropping esepecially with oil pressure devices and fuel injection/carburetors.
And, there are the test result taken from 1946, a captured Ki-84, well repaired, taken care of and using high-octane US fuel, which reaches 427mph.
...
As I said earlier, these sorts of problems, I guess, were probably common among all aircrafts of the losing side... but were they all so drastically different? I mean, I don't recall ever hearing of a latter version 109s with its performance drastically altered due to shortage of materials and supplies in the factory(just the shortage of production numbers).
By which standards should the Ki-84 be modelled??
