BMW 109-558
| 109-558 | |
|---|---|
| Type | Liquid-propellant rocket (sustainer) |
| National origin | Germany |
| Manufacturer | BMW |
| Major applications | Henschel Hs 117 Schmetterling missile
|
| Number built | 120 |
The BMW 109-558 is a
sustainer rocket motor developed by BMW at their Bruckmühl facility,[1] in Germany during the Second World War
.
The 109-558 (with the "109-" prefix being the
SV-Stoff oxidiser (94% nitric acid with 6% dinitrogen tetroxide).[5] SV-Stoff was used to cool the combustion chamber.[6]
The 109-558 was capable of propelling an Hs 117 at 900–1,000 km/h (560–620 mph; 490–540 kn), with throttle control by sliding valves in the exhaust nozzle, operated by a servomotor controlled by a Mach sensor. Production of the 109-558 took forty to sixty hours using a very high proportion of slave labour.[citation needed]
Applications
- Henschel Hs 117
- Henschel Hs 117H
Specifications
General characteristics
- Type: liquid-fuelled rocket engine
- Length: 2,400 mm (7 ft 10 in)
- Diameter: 1,250 mm (49 in)
- Dry weight: 160 kg (350 lb).[7]
Components
- Compressor:
- Hypergoliccombustion in a single combustion chamber
- Fuel type: SV-Stoff oxidiser (94% nitric acid with 6% dinitrogen tetroxide)
Performance
- Maximum thrust: 3.7 kN (830 lbf) for 33 s, followed by 0.588 kN (132 lbf) for 24 s
- Thrust-to-weight ratio: 0.023125 kN/kg (2.36 lbf/lb)
Notes
Sources
- Christopher, John. The Race for Hitler's X-Planes. The Mill, Gloucestershire: History Press, 2013.
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| Solid fuel |
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