The Christmas Bullet
This aircraft was made by Dr. William Whitney Christmas, a psychopath. He created it to ensure that the pilot will die upon reaching a specific height. He asked a pilot called Cuthbert Mills to give it a try. What made it even worse was that Mills asked his mom to come see the test flight. During takeoff, the wings folded and the aircraft crashed. As you can imagine, the pilot did not survive this.
The Messerschmitt Me 163 Komet
What an intimidating aircraft! The Messerschmitt Me 163 Komet is a rocket-powered interceptor made to shoot down enemy planes. It was so fast that it could go from zero to 100 mph faster than other Allied planes. Sadly, it only had the fuel capacity to fly for 3 minutes. It kept having to land to refuel afterward. The landings were difficult, fuel leaks were evident, fires often happened, and pilots died.