The Rolls-Royce RB.44 Tay was a British centrifugal turbojet engine of the 1940s, an enlarged version of the Rolls-Royce Nene. It saw no use by production aircraft in Britain, where aircraft designer's interest had shifted to the potentially more powerful Armstrong Siddeley Sapphire and Rolls-Royce Avon axial engines. The design was licensed by Pratt & Whitney as the J48, and by Hispano-Suiza as the Verdon.
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.
- RB.44 Tay
- Rolls-Royce development engines only, no production.
- Hispano-Suiza Verdon
- The Tay built and developed under licence in France.
- Pratt & Whitney J48
The Tay built and developed under licence in the United States.
Two early Tay engines under test in 1950 by the RAE in a Vickers Viscount
Specifications (Hispano-Suiza Verdon 350)
Data from Flight.
- Type: Turbojet
- Length: 103.2 in (2,621 mm)
- Diameter: 50 in (1,270 mm)
- Dry weight: 2,061 lb (935 kg)
- 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
- Related development
- Related lists
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