The Christmas Bullet
Dr. William Whitney Christmas, a known psychopath first created the Christmas Bullet. When he made this plane he knew that the first round would end up with the pilot dying after hitting a certain altitude. He brought in Cuthbert Mills to test out the plane. He and his mom went to go fly the plane, but the wings folded in during take-off and then crashed.

The Christmas Bullet
The Messerschmitt Me 163 Komet
This plane was actually made as a rocket-powered interceptor to attack enemy planes. The Messerschmitt Me 163 Komet could go from 0 to 100 miles per hour faster than any other competitor. Sadly, it had a very small fuel tank and could only stay in the air for around three minutes. Many pilots died in the process as it was constantly leaking or creating fires.

The Messerschmitt Me 163 Komet