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Turbomeca Palouste



Designed and built by Turbomeca, the Palouste is a gas turbine engine, first run in 1952, and was also built under license in Britain by Blackburn, Lucas Aerospace, and Rolls-Royce. Originally conceived as an aircraft ground support equipment starter gas generator it was also used as propulsion for the Sud-Ouest Djinn and other tip jet powered helicopters.

The Palouste was a very simple unit, its primary purpose was to supply a high flow rate of compressed air to start larger jet engines such as the Rolls-Royce Spey as installed in the Blackburn Buccaneer (this aircraft had no on-board starting system). Air from the centrifugal compressor was divided between external supply (known as bleed air) and its own combustion chamber.

Several British naval aircraft were adapted to carry a Palouste in a wing mounted pod installation to facilitate engine starting when away from base.

A novel use of a surplus Palouste engine was its installation in a custom-built motorcycle known as the Boost Palouste. In 1986 this motorcycle broke an official ACU 1/4 mile speed record at 184 mph (296 km/h). The builder modified the engine to include a primitive afterburner device and noted that pitch changes which occurred during braking and acceleration caused gyroscopic precession handling effects due to the rotating mass of the engine.



Palouste IV
The gas generator used to power the Sud-Ouest S.O.1221 Djinn and other tip-jet helicopters.


Bell Model 65
Fairey Ultra-light Helicopter
Sud-Ouest Djinn


Blackburn Palouste
Type: Gas generator
Length: 33.42 in (849 mm)
Diameter: 17.72 in (450 mm)
Dry weight: 187.5 lb (85 kg)
Compressor: Single stage centrifugal
Combustors: Annular combustion chamber
Turbine: Two-stage axial flow
Fuel type: Kerosene
Oil system: Dry sump
Overall pressure ratio: 3.6:1
Air output: 1.65 lb/sec at 37 psi






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