Description:The Lockheed P-38 Lightning was a heavy twin-engine US fighter with a wide range of action, used during the Second World War by the RAF and the United States (AAC / AAF). At its appearance, in 1939, it was a revolutionary aircraft, extremely innovative, thanks mainly to the twin-beam fuselage, to the two Allison V-engines with turbochargers inside the tail beams and to the front tricycle landing gear. The plane flew at the end of the thirties and a specimen was lost because in the dive, it reached over 840 km / h, going into a high Mach number compressibility regime due to its fineness; this problem, which involved the loss of effectiveness of the flight controls, was also found on other aircraft (eg on the P-47). In 1939, flying over the United States from coast to coast, in just 7 hours and 2 minutes with only two stops for refueling, a service that in those days was unbelievable. The P-38 was probably the quietest fighter in history, since the exhausts were damped by the General Electric turbos of the two Allison engines, and forgave many piloting errors but its roll speed was too low for it to excel as a fighter from air duels. Among the various lighting innovations, there was the fact that it was the first USAAC interceptor interceptor fighter and the first with a front tricycle carriage, the first with rivets tipped on the fuselage surface, with a drop-shaped roof, capable of 400 miles per hour and the first double-deck fighter. "