Turbomeca Palas

Palas
	Sectioned Turbomeca Palas
Type	Turbojet
National origin	France
Manufacturer	Turbomeca
Major applications	Miles Sparrowjet ; Short SB.4 Sherpa
Developed from	Turbomeca Piméné

The Turbomeca Palas is a diminutive centrifugal flow turbojet engine used to power light aircraft. An enlargement of the Turbomeca Piméné, the Palas was designed in 1950 by the French manufacturer Société Turbomeca,^[1] and was also produced under licence by Blackburn and General Aircraft in the United Kingdom and Teledyne Continental Motors in the United States as the Continental Model 320.

Applications edit

Douglas DC-3 of Aigle Azur (France) arriving at Manchester Airport on 3 April 1953. It is equipped with a ventral Turbomeca Palas booster jet engine for "hot and high operations".

Caproni Trento F.5
Curtiss C-46 Commando (two under the fuselage, first flight in October 1952)
Curtiss C-46F Commando (two under the wings)
CVV-6 Canguro Palas
Douglas DC-3 (as a booster engine)
Fouga CM-8 R9.8 Cyclope
Fouga CM-8 R8.3 Midget
Fouga CM.130
Ikarus 451
Ikarus S451M
Ikarus 452M
Mantelli AM-12
Miles Sparrowjet
Payen Pa 49
Short SB.4 Sherpa
SIPA S.200 Minijet
SIPA S.300
Somers-Kendall SK-1
Sud-Ouest Bretagne

Specifications edit

Data from Aircraft engines of the World 1953 ^[2]

General characteristics

Type: Turbojet
Length: 1,200 mm (47 in)
Diameter: 408 mm (16.1 in)
Dry weight: 72 kg (159 lb)

Components

Compressor: single-stage centrifugal
Combustors: annular with rotary fuel injection
Turbine: single-stage with 24 or 25 blades
Fuel type: Jet A1
Oil system: dry sump with Turbomeca gear pump at 3.0 bar (43 psi)

Performance

Maximum thrust:

Take-off: 1.6 kN (350 lbf)

Max Continuous: 1.27 kN (285 lbf)

Cruising: 0.98 kN (220 lbf)

Overall pressure ratio: 4:1
Air mass flow: 3.1 kg/s (6.8 lb/s)
Turbine inlet temperature:

TIT: 1,123.15 K (850 °C)

JPT: 973.15 K (700 °C)

Specific fuel consumption: 110 kg/kN/h (1.1 lb/lbf/h)
Thrust-to-weight ratio: 2.20 (take off), 1.79 (max continuous), 1.38 (cruising).

References edit

Notes

^ Gunston 1989, p. 169.
^ Wilkinson, Paul H. (1953). Aircraft engines of the World 1953 (11th ed.). London: Sir Isaac Pitman & Sons Ltd. pp. 162–163.

Bibliography

Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9

External links edit

Palas at Minijets.org Archived 2007-10-07 at the Wayback Machine

[1] Gunston 1989, p. 169.

[Wilkinson53-2] Wilkinson, Paul H. (1953). Aircraft engines of the World 1953 (11th ed.). London: Sir Isaac Pitman & Sons Ltd. pp. 162–163.

[1]

[2]