The Me-163 �Komet� was the only operational rocket-powered fighter aircraft during WWII. The Me-163 �A� project code named �Project X� started in 1937 under Dr. Alexander Lippisch. It was made for defense purposes using rocket motors. The first Me-163 flew in 1941. There were fuel consumption and engine efficiency problems, which limited its range. In August 1943, the Me-163 B was developed with further enhancements. Production started in July 1944 and a total of 279 were delivered to the Luftwaffe.
