Prop Governors & Accumulators for Aircraft

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Hartzell Aviation stocks prop governors and aircraft accumulators from Hartzell, Hamilton Standard, Woodward, and McCauley. We also have the ability to repair or overhaul your prop governors or aircraft accumulator in-house in one day. For governor overhaul, repair, or exchange, Hartzell Aviation gets you back in the air

Browse our selection of Aircraft Prop Governors and Aircraft Accumulators at our online store. If you need assistance in finding the right Prop Governor or Accumulator for you, call us at 1-877-833-6948 or Email Us to speak with aHartzell Aviationrepresentative.

What Is An Aircraft Prop Governor?

An aircraft propeller governor is a device that is used to control the speed of a propeller. Prop governors are typically mounted on the engine, and receives input from the pilot or the aircraft’s flight control system to adjust the propeller’s speed. The aircraft governor works by controlling the flow of fuel to the engine, which in turn affects the engine’s power output and the speed of the propeller.

The purpose of this aircraft part is to maintain a constant propeller speed, regardless of changes in the aircraft’s airspeed or altitude. This is important because the propeller’s speed must be kept within certain limits to ensure that it is operating efficiently and safely. If the propeller’s speed is too low, it may not generate enough thrust to keep the aircraft in the air. If the propeller’s speed is too high, it may cause excessive wear on the engine and the propeller, and it may also create too much noise.

In addition to controlling the speed, the prop governor may also be used to optimize the engine’s fuel efficiency by adjusting the propeller’s pitch. This involves changing the angle of the blades on the propeller, which can affect how much air the propeller can move. By adjusting the pitch, the prop governor can help the plane maintain a constant speed while using the least amount of fuel possible.

What Is An Aircraft Accumulator?

An accumulator reduces pressure bumps, stores a reserve of high pressure, maintains system pressure, and provides backup system pressure for an airplane. 

Aircraft accumulators have four types:

  • weight-loaded piston type 
  • diaphragm type 
  • spring type 
  • hydropneumatic piston type

Some areas they provide backup in are: landing gear, APU starting, and emergency situations. Aircraft accumulators are also used as system dampers.

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If you do not see the Aircraft Prop Governors & Accumulators you are looking for, please fill out the fields below in our Product Request Form and a Hartzell Aviation representative will contact you shortly to assist you. Even if we do not have the part in stock, we will be happy to order it for you.

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Aircraft Prop Governors & Accumulators Request Form