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Rolls-Royce Hawk

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Title: Rolls-Royce Hawk  
Author: World Heritage Encyclopedia
Language: English
Subject: SSZ class airship, Sage Type 3, SS class airship, Rolls-Royce Eagle, RNAS Capel
Collection: Aircraft Piston Engines 1910–1919, Airship Engines, Rolls-Royce Aircraft Piston Engines
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Rolls-Royce Hawk

Hawk
Preserved Rolls-Royce Hawk
Type Liquid-cooled inline piston engine
Manufacturer Rolls-Royce Limited
First run 1914
Major applications SSZ class blimp
Number built 205

The Rolls-Royce Hawk was a British aero engine designed by Rolls-Royce in 1915. Derived from one bank of six cylinders of the Rolls-Royce Eagle, it produced 75 horsepower at 1,370 rpm. Power was progressively increased to 91 hp by February 1916, and 105 hp by October 1918.[1]

After Rolls-Royce made the prototypes, the Hawk was manufactured under licence by Brazil Straker in Bristol between 1915 and 1918. During this period 204 engines were built, and the Hawk earned a reputation for high reliability.

Many engines of this type were used to power the SSZ class coastal patrol airships of which 76 were built.

Contents

  • Applications 1
  • Specifications (Hawk I) 2
  • See also 3
  • References 4
    • Notes 4.1
    • Bibliography 4.2
  • External links 5

Applications

Specifications (Hawk I)

Data from Lumsden[2]

General characteristics

  • Type: 6-cylinder liquid-cooled inline aircraft piston engine
  • Bore: 4 in (101.6 mm)
  • Stroke: 6 in (152.4 mm)
  • Displacement: 452.3 in³ (7.41 L)
  • Length: 46.85 in (1190 mm)
  • Width: 23.5 in (597 mm)
  • Height: 35.5 in (902 mm)
  • Dry weight: 387 lb (175.5 kg)

Components

Performance

See also

Comparable engines
Related lists

References

Notes

  1. ^ Pugh 2001, p.78.
  2. ^ Lumsden 2003, p.187.

Bibliography

  • Flight 7 May 1954
  • British Airships
  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
  • Pugh, Peter. The Magic of a Name - The Rolls-Royce Story: The First 40 Years. Duxford, Cambridge: Icon Books, 2001. ISBN 1-84046-151-9.

External links

  • RR-Hawk at Shuttleworth Collection in the UK
  • RR-Hawk at USAF museum
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