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Composite Meterials And De-Ice  
User currently offlineCancidas From Poland, joined Jul 2003, 4112 posts, RR: 11
Posted (10 years 11 months 3 weeks 6 days 7 hours ago) and read 1365 times:

How do composite meterials in commercial/ corporate aircraft affect the type of de-ice used. Can bleed air from engines still be used effectively and safely with composites?  Confused


"...cannot the kingdom of salvation take me home."
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User currently offlineScootertrash From United States of America, joined Aug 2001, 569 posts, RR: 9
Reply 1, posted (10 years 11 months 3 weeks 6 days 5 hours ago) and read 1326 times:

I am not a materials expert at all, but maybe this will help:

On the Dash 8 I fly, we have heated elevator horns. The horns are a part of the leading edge of the elevator which protrudes into the airstream. Because of this, they are very susceptible to icing. You can see the horns clearly in the below photo on the outboard side of the horizontal stabilizer:


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Photo © Mark Kisiolek



The black part of the horn is not a boot, but an electrically heated segment. It is not metal, but fiberglass (I believe... could be wrong). I would imagine that those composite parts of modern jets that need to be protected with anti-icing systems are protected in the same manner, with electric heating elements.

Hope this helps.


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