Rolls-Royce RB.44 Tay

The Rolls-Royce RB.44 Tay is 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.

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.
 * Hispano-Suiza Tay 250A:The Tay built under licence in France.
 * Hispano-Suiza Tay 250R:The Tay built under licence in France.
 * Hispano-Suiza Verdon 350:The Tay developed under licence in France.
 * Hispano-Suiza Verdon 370:The Tay 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