Based around detailed research into the Messerschmitt Me.163 "Komet" HWK 109-509 Liquid Bi-Fuel Rocket Motor, this site is also a resource for other Walter rocket motors, their design and operational uses. Walterwerke developed a wide range of rocket motors, some reliable, some experimental, some at the cutting edge of science and technology. Here, find out about the design of the motor for the Me.163, about Walter take-off assisters, motors for guided missiles and many other things.