Aircraft Type Index

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The Walter HWK 109-509Aircraft Engine

The Walter HWK 109-509 was a liquid fuelled rocket engine developed in 1943 as a propulsion system for interceptor aircraft, a need for simple to build and fast aircraft was essential at this time if the allied bomber streams were to be stopped before WW2 was lost. A steam driven turbopump fed the rocket engines fuel, 30 % hydrazine hydrate + 57 % methanol + 13 % water with a trace of potassium-copper-cyanide (C-Stoff) and the oxidizer, hydrogen peroxide (T-Stoff) into a mixing chamber were a hypergolic reaction took place producing a jet of superheated stream, nitrogen and air giving a maximum of 1700 kp (16.7 kN (3,750 lbf)) thrust.

Walter HWK 109-509Aircraft Engine

 

 

Aircraft that were powered by the Walter HWK 109-509

Arado Ar E.381Bachem Ba 349Messerschmitt Me 163

Walter HWK 109-509 Specifications:

  • Type: Liquid-fuelled rocket engine
  • Dry weight: 165.5 kg (365 lb)
  • Fuel type: T-Stoff (Hydrogen peroxide) and C-Stoff (hydrazine hydrate/alcohol/water mix)
  • PThrust: 14.7 kN (3,300 lbf)
  • Power output: 150-1700 kg (450-3750 lbs)
  • Fuel consumption: 8 kg/s (17.75 lb/s) at full thrust
  • Specific fuel consumption: 20lb/hr/lbf
 

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