> I wonder what the service intervals were on a 1490hp Mustang? "For some airplanes, such as the P-51D, use of WEP [war emergency power] required that the engi

> I wonder what the service intervals were on a 1490hp Mustang? "For some airplanes, such as the P-51D, use of WEP [war emergency power] required that the engine be inspected for damage before returning to the air.[4] 5 hours' total use of WEP on the P-51D required a complete tear-down inspection of the engine.[4]" Considerably more than a mere 1500hp, though, by at least some accounts. https://en.m.wikipedia.org/wiki/War_emergency_power https://en.m.wikipedia.org/wiki/War_emergency_power