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Rolls Royce RB.44 Tay

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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. 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.

Contents

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 Verdon
The Tay built and developed under licence in France.
Pratt & Whitney J48
The Tay built and developed under licence in the United States.

Applications

Tay
  • Vickers 663 Tay Viscount
    • Verdon
  • Dassault Mystère IV

    • Specifications (Hispano-Suiza Verdon 350)

    Data from Flight.

    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

    • References

    Rolls-Royce RB.44 Tay Wikipedia
    (Text) CC BY-SA