yes thats all well & good for the Limeys but without the US lend/lease they would have been is serious trouble
no matter what they had.

as for the P-47 Thunderbolt I think its dismal barely over 1:1 kill/loss ratio speaks volumes. looks like the PW2800
couldn't hellp it.

also, the germans with there inline DB605 (XX) was making nearly 2000hp on synthetic 87 octane. truely remarkable.

the Navy went with the Radial purely for reliability (ie: less things to go wrong) for open ocean flights.