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Rolls-Royce Buzzard

January 15, 2023

The Rolls-Royce Buzzard was a British piston aero engine of 36.7 litres (2,240 cubic inches) capacity that produced about 800 horsepower (600 kW). Designed and built by Rolls-Royce Limited it is a V12 engine of 6 in (150 mm) Bore and 6.6 in (170 mm) Stroke. Only 100 were made. A further development was the Rolls-Royce R engine. The Buzzard was developed by scaling-up the Rolls-Royce Kestrel Engine.[1]

Buzzard
Rolls-Royce Buzzard at the National Air and Space Museum
Type Piston V12 engine
Manufacturer Rolls-Royce Limited
First run June 1928
Major applications Blackburn Iris Mark V
Blackburn Perth
Number built 100
Developed from Rolls-Royce Kestrel
Developed into Rolls-Royce R

Variants

List from Lumsden.

Buzzard IMS, (H.XIMS)
(1927), Maximum power 955 hp (712 kW), nine engines produced at Derby.
Buzzard IIMS, (H.XIIMS)
(1932-33), Maximum power 955 hp (712 kW), reduced propeller drive ratio (0.553:1), 69 engines produced at Derby.
Buzzard IIIMS, (H.XIVMS)
(1931-33), Maximum power 937 hp (699 kW), further reduced propeller drive ratio (0.477:1), 22 engines produced at Derby.

Applications

 
The sole Buzzard-powered Vickers Type 207 circa 1933

Specifications (Buzzard IMS)

 
Rear view

Data from Lumsden[2]

General characteristics

  • Type: Liquid-cooled V12 piston engine
  • Bore: 6 in (152.4 mm)
  • Stroke: 6.6 in (167.6 mm)
  • Displacement: 2,239.3 in³ (36.7 L)
  • Length: 75.7 in (1,923 mm)
  • Width: 30.6 in (777 mm)
  • Height: 44.4 in (1,128 mm)
  • Dry weight: 1,140 lb (517 kg)

Components

Performance

See also

Related development

Comparable engines

Related lists

References

Notes

  1. ^ Rubbra 1990, p. 59.
  2. ^ Lumsden 2003, p.198.

Bibliography

  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
  • Rubbra, A.A.Rolls-Royce Piston Aero Engines - A Designer Remembers. Rolls-Royce Heritage Trust. Historical Series no 16. 1990. ISBN 1-872922-00-7]

External links

 
Wikimedia Commons has media related to Rolls-Royce Buzzard.
  • Flight magazine - Period Rolls-Royce Buzzard advertisement, August 1933

January 15, 2023
rolls, royce, buzzard, british, piston, aero, engine, litres, cubic, inches, capacity, that, produced, about, horsepower, designed, built, rolls, royce, limited, engine, bore, stroke, only, were, made, further, development, rolls, royce, engine, buzzard, devel. The Rolls Royce Buzzard was a British piston aero engine of 36 7 litres 2 240 cubic inches capacity that produced about 800 horsepower 600 kW Designed and built by Rolls Royce Limited it is a V12 engine of 6 in 150 mm Bore and 6 6 in 170 mm Stroke Only 100 were made A further development was the Rolls Royce R engine The Buzzard was developed by scaling up the Rolls Royce Kestrel Engine 1 BuzzardRolls Royce Buzzard at the National Air and Space MuseumType Piston V12 engineManufacturer Rolls Royce LimitedFirst run June 1928Major applications Blackburn Iris Mark VBlackburn PerthNumber built 100Developed from Rolls Royce KestrelDeveloped into Rolls Royce R Contents 1 Variants 2 Applications 3 Specifications Buzzard IMS 3 1 General characteristics 3 2 Components 3 3 Performance 4 See also 5 References 5 1 Notes 5 2 Bibliography 6 External linksVariants EditList from Lumsden Buzzard IMS H XIMS 1927 Maximum power 955 hp 712 kW nine engines produced at Derby Buzzard IIMS H XIIMS 1932 33 Maximum power 955 hp 712 kW reduced propeller drive ratio 0 553 1 69 engines produced at Derby Buzzard IIIMS H XIVMS 1931 33 Maximum power 937 hp 699 kW further reduced propeller drive ratio 0 477 1 22 engines produced at Derby Applications Edit The sole Buzzard powered Vickers Type 207 circa 1933 Blackburn Iris Mark V Blackburn M 1 30 Blackburn Perth Handley Page H P 46 Kawanishi H3K Short Sarafand Vickers Type 207Specifications Buzzard IMS Edit Rear view Data from Lumsden 2 General characteristics Type Liquid cooled V12 piston engine Bore 6 in 152 4 mm Stroke 6 6 in 167 6 mm Displacement 2 239 3 in 36 7 L Length 75 7 in 1 923 mm Width 30 6 in 777 mm Height 44 4 in 1 128 mm Dry weight 1 140 lb 517 kg Components Valvetrain Overhead camshaft Supercharger Single stage supercharger Fuel type 73 77 octane petroleum Cooling system Liquid cooledPerformance Power output 800 hp 600 kW Specific power 0 36 hp in 16 3 kW L Compression ratio 5 5 1 Power to weight ratio 0 7 hp lbSee also EditRolls Royce aircraft piston enginesRelated development Rolls Royce Kestrel Rolls Royce RComparable engines Daimler Benz DB 600 Fiat AS 3 Rolls Royce GriffonRelated lists List of aircraft enginesReferences EditNotes Edit Rubbra 1990 p 59 Lumsden 2003 p 198 Bibliography Edit Lumsden Alec British Piston Engines and their Aircraft Marlborough Wiltshire Airlife Publishing 2003 ISBN 1 85310 294 6 Rubbra A A Rolls Royce Piston Aero Engines A Designer Remembers Rolls Royce Heritage Trust Historical Series no 16 1990 ISBN 1 872922 00 7 External links Edit Wikimedia Commons has media related to Rolls Royce Buzzard Flight magazine Period Rolls Royce Buzzard advertisement August 1933 Retrieved from https en wikipedia org w index php title Rolls Royce Buzzard amp oldid 1058626345, wikipedia, wiki, book, books, library,

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