On the Spitfire topic a few members voiced praise of the Mustang. Which I agree was pants untill the Alison engine was replaced by the Merlin. The Lord Flashheart stated its American so its pants. Now if my memory is correct I belive the Mustang was a British design ( can not recall the name of the designer) that was then built by the Americans. But the RAF had several squadrons. So my question is . The P51 Mustang is it British or American ?.