P-51 Mustang Drop Tank

As USAAF Bomber losses mounted during 1943 it became essential to increase the range of escorting fighters. Disposable fuel tanks mounted under the wings or belly of an aircraft gave extra range. The fuel in these disposable tanks was used early in the flight to enable them to be dropped when empty. This was one of a pair of steel tanks that could be fitted under the wing of a P-51 Mustang.

Resin impregnated paper tanks could also be used as a cheaper alternative.