[investigateworld]

Packard made the RR ‘Merlin’ which powered the P-51. The Allison co. (then a div. of General Motors) made the V-1710 for the P-40, P-39 and P-63.
Now I’ll wait for the next trivia dud to come along and tell me that Allison also powered the P-XX

[cpdiii]

Thanks

Someone on Free Republic will always know the answer.