Vedeneyev M14P

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Vedeneyev M-14 engine

The Vedeneyev M14P is a nine cylinder radial, four-stroke, air cooled petrol engine. 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. Its design dates from the 1930s. It is a development of Ivchenko AI-14 engine.

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 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 and others.

Engine Power Output 360-450 hp, last development: 460hp electronic injection (much less consumption: ~30liters/hour at cruise power)
Weight 214 kg (472 lb)
Displacement 10.2 lit
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.