Gnome-Rhône 14M

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The Gnome-Rhône 14M was a small 14-cylinder two-row air-cooled radial engine that was used on several French and German aircraft of World War II.

Contents 1 Specifications (14M 4/5) 2 Applications 3 See also 4 Sources

[edit] Specifications (14M 4/5)

General characteristics

• Type: 14-cylinder two-row air-cooled piston engine
• Bore: 122 mm (4.80 in)
• Stroke: 116 mm (4.56 in)
• Displacement: 18.92 L (1,154.56 cu ins)
• Length: 1.25 m (4.10 ft)
• Diameter: 0.96 m (3.14 ft)
• Height: 949mm (37.40 in)
• Dry weight: 419 kg (923 lbs)

Components

• Valvetrain: 1 inlet and 1 exhaust valve per cylinder
• Supercharger: single-stage single-speed
• Fuel system: 1 Bronzania Carburetor
• Fuel type: 87 octane
• Cooling system: Air-cooled

Performance

• Power output:
  
  • take-off: 700 metric hp (1,100 mm Hg)
  • at sea level: 570 hp (3,030 RPM, 900 mm Hg)
  • at 4,000 m: 660 hp (3,000 RPM, 900 mm Hg)
• Compression ratio: 6.5:1

[edit] Applications

 France

• Breguet 693
• Hanriot NC 530
• Hanriot NC 600
• Potez 631
• Potez 633
• Potez 637
• Potez 63.11

 Germany

• Gotha Go 244
• Henschel Hs 129

[edit] See also

• Pratt & Whitney R-1535 a comparable engine sometimes fitted as an alternative to the 14M on French designs

[edit] Sources

• Danel, Raymond and Cuny, Jean. L'aviation française de bombardement et de renseignement 1918-1940 Docavia n°12, Editions Larivière