Rolls-Royce RB.44 Tay
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]
| Tay/Verdon | |
|---|---|
.JPG.webp) | |
| A Hispano-Suiza Verdon which powered the Dassault Mystere IV, displayed at the Ailes Anciennes Toulouse. | |
| Type | Turbojet |
| Manufacturer | Rolls-Royce Limited |
| Major applications | Dassault Mystère IV |
| Developed from | Rolls-Royce Nene |
| Variants | Pratt & Whitney J48 |
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
- 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
- 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
- Maximum thrust: 7,710 lbf (34 kN) at 11,000 rpm
- Overall pressure ratio: 4.9
- Air mass flow: 132 lb (60 kg)/s
- Specific fuel consumption: 1.1 lb/(lbf h)
- Thrust-to-weight ratio: 3.74
See also
Related development
Related lists
References
 |
Wikimedia Commons has media related to RB.44 Tay. |
- Notes
- Connors, p.202
- Gunston 2006, p.101.
- Wilkinson, Paul H. (1957). Aircraft engines of the World 1957 (15th ed.). London: Sir Isaac Pitman & Sons Ltd. pp. 196–197.
- Wilkinson, Paul H. (1957). Aircraft engines of the World 1957 (15th ed.). London: Sir Isaac Pitman & Sons Ltd. pp. 197–198.
- "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. 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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