V1

What is V1?

V1 meaning in German military terminology / glossary / dictionary is:
the first of the operational German “weapons of vengeance”, or Vergeltungswaffen, the V1 was a pilotless, pioneering cruise missile powered by a pulse-jet engine and carried an 850 kg (1875 lb) high-explosive warhead. They had a range of up to 200 km. Nicknamed “buzz bombs” by Allied troops (“doodlebug” by Australians) due to the sound they made.

 

reference: Wikipedia: Glossary of German military terms