P-38
Tin, the P38 prototype had inwards rotating props,but this was changed on pre-production a/c to outwards rotation due to tailplane buffet. The UK development a/c had no turbo-chargers as the US didn`t want us or the Germans to know the technology, so those a/c also had right -hand rotation early Allisons fitted, known colloquially at Lockheed as " the castrated P-38"; and what did we do for them ? jet-engine,turbo-prop, follow-up tailplane-- Honour amongst friends?