Doodlebug

The Fieseler Fi 103, better known as V-1 (German: Vergeltungswaffe 1) was an early cruise missile used during World War Two. The V-1 was developed at Peenemünde by the German Luftwaffe during the Second World War.
Between 13 June 1944 and 29 March 1945, it was fired at population centres such as London and Antwerp. V-1s were launched from "ski" launch sites along the French (Pas-de-Calais) and Dutch coasts until the sites were overrun by Allied forces. The underground V-1 storage depots at Saint-Leu-d'Esserent, Nucourt and Rilly-la-Montagne, as well as the launch sites, were bombed during Operation Crossbow.

The V-1 was designed with a fuselage constructed mainly of welded sheet steel and wings built similarly or of plywood. The simple pulse jet engine pulsed 50 times per second, and the characteristic buzzing sound gave rise to the colloquial names "buzz bomb" or "doodlebug" (after an Australian insect).