It is now confirmed that Von Braun was the project director for the A-4 (V-2), A-6, and other flying bombs.

However, the engine designer was Walter Thiel. He began working on the rocket engine around 1936, with testing in 1939 and production taking place between 1943 and 1945. He was responsible for the engine and was considered a responsible and methodical person.

During the RAF bombing of the Peenemünde facilities on August 17, 1943, Walter was killed, and the project was passed on to another engineer named Rees, under Von Braun's direction.

The engine Walter designed for the V-2 became known as the M-39 or Model-39. It was the one the Russians copied for their R-100 and R-101 rockets.

-A total of 6,082 V-2 missiles were built, of which slightly more than half, some 3,225, were launched in combat, primarily against Antwerp and London. The remainder were used in testing, and many were found scattered at the end of the war.

-It was used in the A-4 (V-2), the A-9 (V-2 C series), and the A-10 of 1942, which was never used