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Lorraine 12F Courlis

From Wikipedia, the free encyclopedia

12F Courlis
Type Water-cooled W-12 piston engine
National origin France
Manufacturer Lorraine-Dietrich
First run Homologated 21 August 1929

The Lorraine 12F Courlis was a W-12 (broad arrow) aero engine introduced in France in 1929. It was not widely used.

Design and development

In 1926 Lorraine introduced a series of V-12 and W-12 engines with steel cylinders screwed into aluminium alloy engine blocks. There were two W-12s which shared the name Courlis (Curlew), the first of them was the 12E which provided 340 kW (450 hp) from a swept volume of 24.4 l (1,490 cu in). This was followed by the larger 12F, giving 450 kW (600 hp) from 31.7 l (1,930 cu in).[1][2]

The 12F was officially homologated on 21 August 1929[2] and displayed at the 1930 Paris Salon.[3] Unlike the 12E, which powered many different aircraft types, the 12F was not so widely used.

Variants

Lorraine 12Fa
Lorraine 12Fb
Lorraine 12Fd

Applications

Specifications (12Fa)

Data from L'Aérophile January 1930[2]

General characteristics

  • Type: Water-cooled W-12 four-stroke engine
  • Bore: 145 mm (5.7 in)
  • Stroke: 160 mm (6.3 in)
  • Displacement: 31.7 l (1,930 cu in)
  • Length: 1.656 m (5 ft 5.2 in)
  • Width: 1.140 m (3 ft 8.9 in)
  • Height: 1.062 m (3 ft 5.8 in)
  • Dry weight: 430 kg (950 lb) without propeller, with Viet starter

Components

Performance

References

  1. ^ Gunston, Bill (1989). World Encyclopaedia of Aero Engines (2 ed.). Wellingborough: Patrick Stephens Ltd. p. 95. ISBN 1-85260-163-9.
  2. ^ a b c "Le Moteur Lorraine 600 CV (12Fa)". L'Aérophile. 38 (1–2): 23. 1–15 January 1930.
  3. ^ "Premier regard sur les moteurs". Les Ailes (493): 13. 15. 27 November 1930.
This page was last edited on 2 January 2021, at 14:49
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