Designed in 1948 as an expendable 7,006 N (1,575 lb) thrust turbojet for the Australian Jindivik target drone and still manufactured in the 1990s, this engine had one of the longest production runs of any turbojet. In 1952 the Viper 5 eliminated expendable features, giving the Royal Air Force the world's first all-through jet training system with the Jet Provosts. Uprated Viper 11's powered the majority of second generation trainer aircraft, such as Jet Provost Mark 4, Italian Macchi MB.326, Jogoslav SOKO Galeb, and Indian HAL HJT-16 Kiran.

The Viper 500, a Viper 11 derivation, was created for business, military trainer and light combat aircraft. The Mk. 601 series was the last having civilian application. In September 1973, this engine was installed on a Beechcraft-Hawker BH 125 Series 600A business aircraft, Ser. No. 256023, N514V. It was removed from service in April 1986 and donated to the National Air and Space Museum in October.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date August 23, 1973 Country of Origin United Kingdom Type PROPULSION-Turbines (Jet) Manufacturer Rolls-Royce Ltd. (Derby, U.K.)
 Physical Description Type: Turbojet Thrust: 16,622 N (3,737 lb) at 13,760 rpm Compressor: 8-stage axial Combustor: Annular Turbine: 2-stage axial Weight: 358 kg (790 lb) Dimensions 3-D: 294 × 71.1 × 75.6cm (9 ft. 7 3/4 in. × 2 ft. 4 in. × 2 ft. 5 3/4 in.)
Overall: 790lb. (358.3kg)
 Materials HAZ MAT: Cadmium
Aluminum Alloy
Ferrous Alloy
Paints
Rubbers
Plastics
Non-Magnetic White Metal
 Inventory Number A19870001000 Credit Line Gift of Rolls-Royce, Inc. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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