R975 Radials

[maple_leaf_eh]

I would expect someone realized this too, and tried to keep like types in the same supply stream.

Off the top of my head, the story of engine choices was more about large scale supply mathematics effecting outcomes and not just about convenience. When airplane manufacturers changed from radial to inline, that capacity had to be applied somewhere. Knowing that the M3 and M4 hulls were designed for tall engines, adapting engines to bodies vs redesigning the hulls would have been easier. Who in their right mind would willingly inflict the Chrysler multibank when radials or V-blocks were available?