M14P
Vedeneyev M-14 engine (rear view)
Type	Radial aero engine
Manufacturer
Developed from	Ivchenko AI-14

The Vedeneyev M14P is a Russian nine cylinder radial, four-stroke, air-cooled petrol engine. Its design dates from the 1940s, it is a development of the Ivchenko AI-14 engine.

Contents 1 Design and development 2 Applications 3 Specifications (M14P) 4 See also 5 References

[edit] Design and development

The induction system uses a gear driven supercharger and a carburettor of automatic mixture type. Power is transmitted to the propeller via a reduction gearbox.

The engine has a speed governor, carburettor, two magnetos, mechanical fuel pump, generator and oil pump. The engine remains fully operational during inverted flight. The engine is pneumatically started.

The engine is left-turning (counter-clockwise) when viewed from the cockpit. This is opposite to the rotation to most Western aero-engines.

In recent times, the M-14P has become increasingly popular in experimental aircraft designs such as the Murphy Moose, Radial Rocket and others.

Later developments produce 460 hp and are equipped with electronic injection (much less consumption: ~30 liters/hour at cruise power)

Time Between Overhauls, TBO 2250 hours by US standards. Typically the Russian logbook states "engine life 2250 hours" with IRAN's or Inspect and Replace As Necessary every 500 hours or so. Some have confused these IRAN's as low TBO's or overhauls.

This engine was used by the Yakovlev and Sukhoi Design Bureaus.

[edit] Applications

• Radial Rocket
• Murphy Moose
• Pitts Model 12
• PZL-105 Flaming
• Sukhoi Su-26
• Sukhoi Su-29
• Yakovlev Yak-18T
• Yakovlev Yak-50 (trainer)
• Yakovlev Yak-52
• Yakovlev Yak-54
• Yakovlev Yak-55
• Culp Special (Steen Skybolt variant)

[edit] Specifications (M14P)

General characteristics

• Type: Nine cylinder, four-stroke, air-cooled radial engine
• Displacement: 10.2 L
• Diameter: 985 ± 3 mm
• Dry weight: 214 kg (472 lb)

Components

• Cooling system: Air-cooled

Performance

• Power output: 360-450 hp

[edit] See also

Related development

• Ivchenko AI-14
  

Related lists

• List of aircraft engines
  

[edit] References

• YAK-55M Operator Handbook
• M14 Log books

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