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Rolls-Royce RB193
MAN Turbo RB193
Bristol Siddeley RB193


RR-RB-193

 

The Rolls-Royce/MAN Turbo RB.193 was a vectored thrust turbofan engine joint development project by Rolls-Royce/MAN Turbo originally designed to meet a requirement for the VFW VAK 191B project. Design work commenced after a contract from the Federal German Ministry of Defence was signed in December 1965. Bristol Siddeley (from 1966 part of Rolls-Royce) were sub-contracted to manufacture components for the engine.
 
The design was similar in concept and closely related to the earlier Bristol Siddeley Pegasus, employing the same layout of 'hot' and 'cold' pairs of rotating thrust nozzles, internal airflow was the same as the Spey. Tethered flight testing of the VFW VAK 191B commenced in 1966 with the first free hovering flight taking place at Bremen in October 1971. The aircraft later successfully transitioned from hovering to forward flight at Manching in October 1972. Production did not follow after cancellation of the associated aircraft project. By the end of the test programme in 1975 the RB.193 had accumulated 12 hours of flight time and 91 flights and cost £8,000,000 (1966).

A VFW VAK 191B aircraft fitted with an RB.193-12 is on display at the Deutsches Museum Flugwerft Schleissheim, panels have been removed to allow viewing of the rotating nozzle and mechanisms.

 

Specifications:

RB.193-12
Type: High bypass twin-spool turbofan
Diameter: 33 in
Dry weight: 1,742 lb (790 kg)
Compressor: Axial compressor, 3-stage fan, 2-stage LP, counter-rotating 6-stage HP
Turbine: 3-stage LP, Single-stage air cooled HP
Maximum thrust: 10,163 lb (4,610 kg)

 

 

 

 

 


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