Armstrong Siddeley Mamba
The Armstrong Siddeley Mamba was a turboprop - aircraft engine , which the British manufacturer Armstrong Siddeley produced from April 1946th The machine developed around 1500 ehp (1100 kW).
construction and development
The Mamba was a compact machine with a 10-stage axial compressor , six combustion chambers and a two-stage turbine . The reduction gear was built into the propeller spinner. The engine was started with a cartridge. The Ministry of Supply described the machine as ASM ( A rmstrong S iddeley M amba). The ASM.3 made 1475 ehp and the ASM.6 1770 ehp. A 500 hour test was undertaken in 1948 and the Mamba was the first turboprop to power the Douglas DC-3 when a Dakota testbed was converted in 1949 to accommodate two Mambas.
The double mamba was later developed from the mamba . a. propelled the Royal Navy's Fairey Gannet anti -submarine aircraft . These were essentially two mambas mounted next to each other, which drove propellers rotating in opposite directions via a common reduction gear.
A jet engine version of the Mamba was developed as an adder , whereby the reduction gear was omitted.
Variants and applications
- ASM.3 Mamba
- Armstrong Whitworth Apollo
- Avro Athena
- Boulton Paul Balliol
- Breguet Vultur
- Miles M.69 Marathon II
- Douglas C-47 Dakota
- ASM.5
- ASM.6 Mamba
- Short seamew
- ASM.7
- A version for civil applications.
- Swiss-Mamba SM-1 (with downstream turbofan)
- EFW N-20
Machines on display
Armstrong Siddeley Mambas are on display at the Midland Air Museum at Coventry Airport and the Royal Air Force Museum Cosford .
There is also a mamba in the Aviation Heritage Museum (Western Australia) .
Data (ASM.3)
General
- Type: Turboprop
- Length: 2217.4 mm
- Diameter: 737 mm
- Weight: 354 kg
Components
- Compressor: axial, 10-stage
- Combustion chambers: 6
- Turbine: 2-stage
power
- Power: 1320 shp plus 1.8 kN thrust (1475 eshp, 1085 kW)
- Overall print ratio: 5.35: 1
- Air mass flow: 8.4 kg / s
- Specific fuel consumption: 0.36 / hx eshp
- Power-to-weight ratio : 0.326 kg / kW
Individual evidence
- ↑ a b Aero Engine Information . In: RAF Museum . Archived from the original on November 16, 2007. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved June 6, 2008.
- ^ Bill Gunston: World Encyclopedia of Aero Engines . Patrick Stephens, Cambridge 1989. ISBN 1-85260-163-9 . P. 20.
- ↑ a b c d John Taylor: '' Jane's All the World's Aircraft 1955-56 ''. Sampson, Low Marsten & Co., London 1955
- ↑ `` Engines (21) ''. RAAF Association of WA Aviation Heritage Museum . Retrieved November 7, 2014.
- ^ Aero Engines 1954 . In: Flight . www.flightglobal.com. April 9, 1954. Retrieved November 4, 2008.
literature
- Bill Gunston: World Encyclopedia of Aero Engines . Patrick Stephens, Cambridge 1989. ISBN 1-85260-163-9
