old plane to me. well, this, united states wasn t doing well in air plain design until 1943 when, because most fighter planes were under powered so what the army air corps did is they took a merlin engine from royal air force, stuck it into the p-51. overnight this thing performance of the aircraft became remarkable. and what what is more remarkable is that it was an outstanding dog fighter from the deck, all the way up to 25 and 30,000 feet. it s not only fastest and best turning and most versatile fighter of the war with the best air to air ratio but could fly as the old saying goes throughout the entire enblem. what plane replaced it?. the plane continued to fly into korean warks greta. it wasn t retired from