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Turbomeca Palouste


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.

 

Variants:

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

 

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

 

Specifications:
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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