Ki-83 test performance

[Revi16]

Originally Posted by Graham Boak

Just filling the tanks with 100 octane will not make any individual aircraft go any faster unless the engine is rated at a higher boost than it previously could achieve on the design petrol. This seems a curious design trait.

I agree.

I just mentioned the avgas as Japan had limited sources of the "good stuff" during the war. Depending on what avgas was used for testing in Japan compared to what was commonly available from the USA "could" have made a difference.

There are numerous variables that may explain the difference, one being a simple typo replicated over the years. Who knows?