What was the sound a Doodlebug made when it ran out of fuel?

Answer 1

The Doodlebug was a guided missile that was a winged planform type- or as we now would say, a cruise missile. when underway it had a buzzing sound from the resonant pulse-jet engine that was designed for this weapons system. when over the target- an automatic device cut off the motor by slicing the fuel lines- then a deathly silence- not quite a whistling noise as the nose fuse did its work to arm the bomb- and then the big explosion. The term Buzz Bomb refers to the motive power sound, not the explosion sound. They were nose-fused a small two-bladed prop used slipstream energy to arm the fuses- and was only activated when the propulsion system was cut off- again to prevent accidental pre-detonations- always a hazard with bombs and bombers.