Simplify the following text for a Grade 6 native English-speaking person.
Original: The Argus As 014 ( also known as the 109-014 by the RLM ) was a pulse jet engine used on the German V-1 flying bomb of World War II , and the first model of pulsejet engine placed in mass production .
Simplified: The Argus As 014 was a pulse jet engine used on the German V-1 flying bomber of World War II .