The Messerschmitt Me 163 Komet was designed by Dr. Alexander Lippisch and Helmuth Walter. Walter developed the engine and Lippisch designed the plane.
The design was based on earlier work on the DFS 194 in 1938. It was done by the German Research Institute for Sailplanes. A Walter HWK R.I motor (600 lb / 2.7kN) was added.
The first work on the design was started on January 2, 1939, in Ausburg.
The Walter RII-203 rocket engine got its power by combining two fuels, T-Stoff (hydrogen peroxide) and Z-Stoff.
The Walter 109-509A rocket engine got its power by combining T-Stoff (hydrogen peroxide) and C-Stoff (hydrazine hydrate, methyl alcohol, and water).
There were many accidents with the Me 163 caused by the hazardous fuel mixture.
The engine only lasted 8 - 10 minutes.
Trolley and Skid
The Me 163 would initially take off with an attached trolley, but it was jettisoned after takeoff. Then to land the Me 163 would land on a skid. If there was any fuel left the landing could mix the remaining fuel and cause an explosion.
Due to the Me 163s high speed, there was little time for a pilot to shoot at a bomber. An upward firing 50 mm shell was developed that with a sensor would detect a bomber overhead on the Me 163's flyby and shoot the shells at the bomber.
Under wing rockets were also used.