Hispano-Suiza 14AB
The Hispano-Suiza 14AB was a 14 cylinder twin row air cooled radial engine. In 1929 the Hispano-Suiza company bought a license to produce the Wright Whirlwind engine. The technology from that engine was used to produce a number of different radial engines with greater displacements, power and number of cylinders. The most significant of them was 14AB. The 14AB was a very compact design with relatively good performance and some 2,500 engines were produced. The 14AB though suffered from cooling problems and many aircraft originally designed for the 14AB were instead redesigned to use the more reliable Gnome-Rhône 14 series of engines and the American Wright or Pratt & Whitney engines.
Specifications (Hispano-Suiza 14AB)
General characteristics
- Type: 14 cylinder twin row air cooled radial engine.
- Bore: 135mm (5.32 in)
- Stroke: 130mm (5.12 in)
- Displacement: (1,589 cu in)
- Length: 1,410mm (55.51 in)
- Width: mm (in)
- Height: 1,009mm (39.76 in)
- Dry weight: 465kg (1,025 lbs)
Components
- Valvetrain: 1 inlet and 1 exhaust valve per cylinder
- Supercharger: Yes
- Fuel system: Carburetor
- Fuel type: 85 octane
- Cooling system: air
Performance
- Power output: 680hp @ 2,400 RPM @ 11,483 ft
- Compression ratio: 6.20:1
- Power-to-weight ratio: 1.51lb/hp @ cruise speed
References
- Gunston, Bill. (1986). World Encyclopaedia of Aero Engines. Patrick Stephens: Wellingborough. p.90
- http://www.oldengine.org/members/diesel/Duxford/fraero2.htm