Actually, I have, but usually something like this: Type 44, referring
to a Ki-44 Shoki.

As in '44-shiki'? This doesn't make sense AFAIK,

No, Nakajima Ki-44. The Japanese name is Shoki, I think meaning
Dragon. Allied pilots called it Tojo. Aka Type 1 Fighter (I assume it
was 1941: it was in prototype service that December).

all the best -- Dan Ford
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