Fieseler Fi 166

In the early 1940s, Erich Bachem, Fieseler's Aircraft's technical manager, developed two designs for a rocket-launched fighter that could reach high altitudes quicker than conventional fighters.[1]

Fi 166
Role Vertical-launched jet fighter
Manufacturer Fieseler
Designer Erich Bachem
Status Project only
Number built None

Design One

Design one involved a straight-winged jet fighter powered by two Jumo 004 jet engines. It would be launched upright by liquid-fuel rockets. After attaining an altitude of 3660 meters, the rocket would burn out, disconnect and return to earth via parachute for re-use. The fighter would then engage Allied bombers before landing as a conventional airplane.[2]


CategoryKnown Data
Maximum speed800 km/h
Takeoff weight5 metric ton
Flying time45 minutes

See also

  • Bachem Ba 349 Natter, a similar point-defense interceptor designed by Erich Bachem which achieved test flights (1945)


  1. "Fi-166 High-Altitude Rocket Fighter". Retrieved 19 April 2018.
  2. "Fieseler Fi 166". Archived from the original on 22 February 2014. Retrieved 19 April 2018.
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