SNECMA Turbomeca Larzac

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Larzac
Jet engine Larzac 04.jpg
Sectioned view of a SNECMA Turbomeca Larzac
Type Turbofan
National origin France
Manufacturer SNECMA Turbomeca
Major applications Dassault/Dornier Alpha Jet

The SNECMA Turbomeca Larzac is a military turbofan manufactured by GRTS (Groupement Turbomeca-SNECMA),[1] a consortium between the two French companies, SNECMA and Turbomeca. Its main application was on the Dassault/Dornier Alpha Jet.

Variants[edit]

04-C6
04-C20
04-H-20

Applications[edit]

Specifications (Larzac 04-C6 / 04-C20[edit]

Data from [2][3]

General characteristics

  • Type: Axial flow, twin-spool, bypass turbofan engine
  • Length: 1,187 mm (46.73 in)
  • Diameter: Inlet:452 mm (17.79 in)
  • Dry weight: 295 kg (650.35 lb)

Components

  • Compressor: Low pressure: 2 stage axial, High pressure: 4 stage axial
  • Combustors: Annular
  • Turbine: Low pressure: 1 stage, High pressure: 1 stage
  • Fuel type: Aviation Kerosene Jet A-1 or similar
  • Oil system: pressure spray/splash with scavenge

Performance

  • Maximum thrust: (04-C6) 13 kN (2,970 lbf), (04-C20) 14 kN (3,200 lbf)
  • Overall pressure ratio: (04-C6) 10.5, (04-C20) 11.1
  • Bypass ratio: (04C6) 1.13, (04C20) 1.04
  • Air mass flow: (04-C6) 28.1 kg (62 lb)/second, (04-C20) 28.6 kg (63 lb)/second
  • Turbine inlet temperature: (04-C6) 1,403 K (1,130 °C; 2,066 °F), (04C-20) 1,433 K (1,160 °C; 2,120 °F)
  • Specific fuel consumption: (04-C6) 73 kg/kN.h (0.716 lb/lbf.h), (04C-20) 76 kg/kN.h (0.746 lb/lbf.h)
  • Thrust-to-weight ratio: (04-C6) 0.0448 kN/kg (4.567 lbf/lb), (04C-20) 0.048 kN/kg (4.92 lbf/lb)

See also[edit]

Comparable engines
Related lists

References[edit]

Notes
  1. ^ Gunston 1989, p.172.
  2. ^ "Larzac 04" (PDF). Snecma. Archived from the original (PDF) on November 10, 2006. Retrieved 2008-01-09. 
  3. ^ "Vectors For September 2003". Retrieved 2008-01-09. 
Bibliography
  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9

External links[edit]