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Auxiliary Systems

Secondary Systems

Auxiliary or secondary systems help the aircraft perform its main function: flying from a to b. They are necessary and important for a safe conduct of the flight although a failure of one of these systems would not cause the it to loose control or crash immediately.

As you build your own aircraft you have the choice of installing these support systems yourself which entitles you to do your own maintenance and having in-depth knowledge really helps should problems arise later on or during a flight.

Auxiliary Sections



Auxiliary Sections

Brakes & Wheels

Stopping an aircraft is done with brakes on the main gear wheels only. And these wheels must roll without any undue friction, this means that the wheel bearings must be maintained and installed properly by the builder.

  • Aircraft Brakes
  • Servicing Wheel Bearings

Fire & Oxygen

Most experimental aircraft do not have these systems but when flying above 10000 feet having extra oxygen on board can save lives. So is detecting possible engine fires especially when running with turbo-chargers or other hot running devices.

  • Fire Detection & Extinguishing
  • Oxygen Systems

Pitot Static System

To fly we need airspeed thus measuring and indicating the proper horizontal and vertical speed and altitude is important for safety. In this section we go into these indicators and see how we convert static and dynamic air pressures into speed.

  • Speed Measurement
  • Pitot Static System
  • Dynamic & Static
  • Airspeed Indicators
  • Altitude Indicators
  • Vertical Speed Indicators

Gyroscopic Systems

When flying on instruments the pilot needs a precise and stable three dimensional indication of heading, attitude and turn. These are provided by vacuum pumps and the gyroscopic instruments in front of him.

  • Vacuum System
  • Gyroscopic Principles
  • Turn Indicators
  • Slipping / Skidding
  • Heading Indicators
  • Attitude Indicators

Hydraulics & Pneumatics

Hydraulics and pneumatics systems are everywhere in the aircraft, from oil pumps, cabin pressurization to the brake systems, they all use Pascal's Law. This is where we explain it so that you know enough to install and maintain them.

  • Hydraulic Principles
  • Hydraulic Components
  • Pneumatic Systems

Written by EAI.

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