Alternatively, another useful list might be the number produced of each of the more prolific aero engines which would have to prove SOMETHING. Of the bigger piston engines, I believe that the P&W R-1830 Twin Wasp would be very hard to beat (some 173,618, I believe, and do not know if this includes Australian production). Licensed production has been pretty popular from the beginning, and there were quite a few engine types obviously inspired by successful ones, but not necessarily acknowledged as direct copies. As to number of Merlins? About 150,000 I believe, give or take, bur does this figure include Australian production? (Note, I am not Australian!)
Last edited by dduxbury310; 11th Feb 2022 at 01:57.
Reason: correcting number of P&W R-1830s manufactured.