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Ice protection

Ice protection

  • Two strategies are used for ice protection: de-icing and anti-icing, De-icing allows ice to form and then be removed on a periodic basis.
  • The build-up of ice will have been investigated during type testing of the aircraft and the build-up removed before it poses a hazard. Anti-icing is when ice is not permitted to form at all.

Three primary methods are used for both-icing and anti-icing:

  •  fluid
  •  pneumatic
  •  thermal.

All three are controlled and operated by electrical systems; an aircraft can be fitted with any  one method, or a combination of all three. Specific areas to be protected from ice formation are as follows:

Airframe

  • leading edges
  •  control surfaces
  •  lift augmentation devices
  •  windscreen (or windshield)

Propulsion

  •  air intakes
  • propellers

External components

  • pitot tubes
  •  temperature sensors
  • the angle of attack sensors
  • water drains.

 

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