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Armstrong Siddeley Hyena

From Wikipedia, the free encyclopedia

Hyena
Type Radial engine
Manufacturer Armstrong Siddeley
First run 1933
Major applications Armstrong Whitworth A.W.16

The Armstrong Siddeley Hyena was a British aero engine developed by Armstrong Siddeley. Designed in the 1930s, it was an unusual experimental radial engine with inline cylinder banks.[1] It was flown using an Armstrong Whitworth A.W.16 fighter aircraft as a test bed. Unresolved problems with cooling of the rear cylinders prevented the engine from going into production.[2] Few details of this engine survive as company records were lost.[3]

Armstrong Siddeley in-line radial engines

The Hyena arrangement of cylinder banks arranged as a radial engine was continued with further designs, but with little commercial success, with only the Deerhound and Hyena being built.

Hyena
15 cylinders (5 banks of 3 cyl.)
Terrier
14 cylinders (7 banks of 2 cyl.)
Deerhound
21 cylinders (7 banks of 3 cyl.)
Wolfhound
28 cylinders (7 banks of 4 cyl.)
Boarhound
24 cylinders (6 banks of 4 cyl.)
Mastiff
36 cylinders (9 banks of 4 cyl.)

Specifications (Hyena)

Data from Lumsden.[3]

General characteristics

  • Type: 15-cylinder 3-row radial engine with inline banks.[1]
  • Bore: 5.3 in (137 mm)
  • Stroke: 4.88 in (125 mm)
  • Displacement: 1,615.58 cu in (26.6 L)

Components

Performance

  • Power output: 618 hp at 2,000 rpm at sea level

See also

Comparable engines

Related lists

References

Notes

  1. ^ a b Gunston, Bill (1986). World Encyclopedia of Aero Engines. Guild Publishing. p. 18. 3-row radials
  2. ^ Pearce, William. "Armstrong Siddeley 'Dog' Aircraft Engines". oldmachinepress.com. Retrieved 9 May 2016.
  3. ^ a b Lumsden 2003, p.76.

Bibliography

  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
This page was last edited on 17 April 2021, at 03:45
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