Rolls-Royce RB.44 Tay

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For the later turbofan engine, see Rolls-Royce RB.183 Tay.

Tay/Verdon
Hispano-Suiza Verdon 253A - MAA (2).JPG
A Hispano-Suiza Verdon which powered the Dassault Mystere IV, displayed at the .
Type Turbojet
Manufacturer Rolls-Royce Limited
Major applications Dassault Mystère IV
Developed from Rolls-Royce Nene
Variants Pratt & Whitney J48

The Rolls-Royce RB.44 Tay was a British turbojet engine of the 1940s, an enlarged version of the Rolls-Royce Nene designed at the request of Pratt & Whitney.[1] It saw no use by British production aircraft but the design was licence built by Pratt & Whitney as the J48, and by Hispano-Suiza as the Verdon.[2]

Two early production examples of the Tay were evaluated during 1950 by the Royal Aircraft Establishment (RAE) at Farnborough Airfield, Hampshire, in a specially modified Vickers Viscount.

Variants[]

RB.44 Tay
Rolls-Royce development engines only, no production.
Hispano-Suiza Tay 250
The Tay built under licence in France.[3]
Hispano-Suiza Tay 250A
The Tay built under licence in France.[3]
Hispano-Suiza Tay 250R
The Tay built under licence in France.[3]
Hispano-Suiza Verdon 350
The Tay developed under licence in France.[4]
Hispano-Suiza Verdon 370
The Tay developed under licence in France.[4]
Pratt & Whitney J48
Main article: Pratt & Whitney J48
The Tay built and developed under licence in the United States.

Applications[]

Two early Tay engines under test in 1950 by the RAE in a Vickers Viscount
Tay
  • Vickers 663 Tay Viscount
Verdon

Specifications (Hispano-Suiza Verdon 350)[]

Data from Flight.[5]

General characteristics

  • Type: Turbojet
  • Length: 103.2 in (2,621 mm)
  • Diameter: 50 in (1,270 mm)
  • Dry weight: 2,061 lb (935 kg)

Components

  • Compressor: Double sided centrifugal compressor
  • Combustors: Nine tubular combustion chambers
  • Turbine: Single-stage turbine
  • Fuel type: AVTUR / JET-A1 / F-34 etc.
  • Oil system: Pressure spray lubricated with scavenging

Performance

See also[]

Related development

Related lists

References[]

Notes
  1. ^ Connors, p.202
  2. ^ Gunston 2006, p.101.
  3. ^ a b c Wilkinson, Paul H. (1957). Aircraft engines of the World 1957 (15th ed.). London: Sir Isaac Pitman & Sons Ltd. pp. 196–197.
  4. ^ a b Wilkinson, Paul H. (1957). Aircraft engines of the World 1957 (15th ed.). London: Sir Isaac Pitman & Sons Ltd. pp. 197–198.
  5. ^ "Aero Engines 1956". Flight. 1956. Retrieved 8 January 2013.
Bibliography
  • Connors, Jack (2010). The Engines of Pratt & Whitney: A Technical History. Reston. Virginia: American Institute of Aeronautics and Astronautics. ISBN 978-1-60086-711-8.
  • Gunston, Bill (2006). World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. ISBN 0-7509-4479-X.
  • Kay, Anthony L. (2007). Turbojet History and Development 1930-1960. Vol. 1 (1st ed.). Ramsbury: The Crowood Press. ISBN 978-1-86126-912-6.
  • "Aero Engines 1956". Flight. 1956. Retrieved 8 January 2013.
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