Turbomeca_Aspin Knowpia

Aspin
Type	Turbofan
National origin	France
Manufacturer	Turbomeca
First run	1951

The Turbomeca Aspin was a small French turbofan engine produced by Turbomeca in the early 1950s. This geared turbofan design was the first turbofan to fly, powering the Fouga Gemeaux test-bed aircraft on 2 January 1952.^[1]

Variants edit

Aspin I: 200 kg (440 lb) thrust
Aspin II: 350 kg (770 lb) thrust

Applications edit

Fouga CM.88 Gemeaux

Specifications (Aspin II) edit

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

General characteristics

Type: Geared turbofan
Length: 1,614 mm (63.5 in)
Diameter: 604 mm (23.8 in)
Dry weight: 138 kg (304 lb)

Components

Compressor: Single-stage geared axial flow fan, single-stage centrifugal flow compressor
Combustors: Annular combustion chamber
Turbine: Two-stage axial flow turbine
Fuel type: Kerosene
Oil system: Dry sump, Turbomeca gear pump at 5.9 bar (85 psi)

Performance

Maximum thrust:

Take-off: 3.6 kN (800 lbf)

Max Continuous: 3.14 kN (705 lbf)

Overall pressure ratio:

Fan: 1.15:1 at 35,000 rpm / sea level

Compressor: 3.8:1 at 35,000 rpm / sea level

Air mass flow:

Fan:21 kg/s (46 lb/s) at 35,000 rpm / sea level

Compressor:3.0 kg/s (6.6 lb/s) at 35,000 rpm / sea level

Specific fuel consumption: 53 kg/kN/h (0.52 lb/lbf/h)
Thrust-to-weight ratio: 2.632

References edit

Notes

^ Gunston 1989, p. 169.
^ Wilkinson 1953, pp. 166-167

Bibliography

Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
Wilkinson, Paul H. Aircraft engines of the World 1953. London, England. Sir Isaac Pitman & Sons Limited. 1953.