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

Aspin I

200 kg (440 lb) thrust

Aspin II

350 kg (770 lb) thrust

Applications

• Fouga CM.88 Gemeaux

Specifications (Aspin II)

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

See also

• Ducted fan
• Propfan
• Geared turbofan

Related development

• Turbomeca Astazou
• Turbomeca Astafan

Comparable engines

• Honeywell ALF 502/LF 507
• Garrett TFE731
• Pratt & Whitney PW1000G
• IAE SuperFan

Related lists

• List of aircraft engines

References

Notes

Bibliography

External links

• Minijets website Aspin I
• Minijets website Aspin II

На других языках

[fr] Turbomeca Aspin