Sponsor Message:
Aviation Technical / Operations Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Commercial A/C De-icing  
User currently offlineCancidas From Poland, joined Jul 2003, 4112 posts, RR: 10
Posted (12 years 10 months 3 weeks 5 hours ago) and read 2059 times:

Do commercial A/C have de-icing boots or do they just use heated surfaces?

"...cannot the kingdom of salvation take me home."
6 replies: All unread, jump to last
User currently offlineM717 From United States of America, joined Dec 2002, 608 posts, RR: 4
Reply 1, posted (12 years 10 months 3 weeks 4 hours ago) and read 2004 times:

"Commercial A/C" covers a very broad range of equipment. As a general statement, most transport jet aircraft (B-737, 757, DC-9, A-320, etc.) use heated surfaces. On the other hand, many turboprop aircraft (DHC-8, ATR-42/72, SF-340, SA-227, BE-1900, etc.) have de-ice boots.

User currently offlineKAUSpilot From United States of America, joined Jan 2002, 1976 posts, RR: 30
Reply 2, posted (12 years 10 months 3 weeks 4 hours ago) and read 2015 times:

Both. Some aircraft (mostly smaller turbine aircraft and piston aircraft) use pneumatic de-ice boots which expand and "knock off" layers of ice after they have built up on aircraft leading edge surfaces.

Other aircraft (larger jets) are equipped with a thermal leading edge anti-ice system. Here, hot, high-pressure engine bleed air is routed under leading edge surfaces to prevent the formation of ice. The main advantage of the thermal system is that it can be used in a preventive fashion, whereas it is usually inadvisable to active pneumatic boots until a pre-determined amount of ice has already built up on the aircraft. The disadvantages of thermal systems are that they use a good deal of engine power, because they draw off of air from the compressor sections of the engine, and they usually should not be used on the ground because warping of the aircraft metal can occur due to the relatively high temperatures encountered at ground level compared to cruising altitude.

Still other types of aircraft incorporate liquid ice protection (weeping wing). Basically, in these systems an anti-ice fluid is secreted through tiny pores in the wings. There are also electrically heated de-icing boots where are too energy demanding to use on large surfaces but are commonly found in use on propeller blades.

User currently offlineBoeing4ever From , joined Dec 1969, posts, RR:
Reply 3, posted (12 years 10 months 2 weeks 6 days 22 hours ago) and read 1950 times:

Any photos that show these de-icing boots in detal?

B4e-Forever New Frontiers

User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 4
Reply 4, posted (12 years 10 months 1 week 4 days 20 hours ago) and read 1826 times:

Two points from a mtce guy- the air for heated surfaces is regulated to low pressure, approx 30 psi. Boots are ok, but require FAR more mtce than hot leading edges.

User currently offlineL-188 From United States of America, joined Jul 1999, 30408 posts, RR: 57
Reply 5, posted (12 years 10 months 1 week 4 days 20 hours ago) and read 1832 times:

Also, consider that the Shorts SC-7 uses a TKS system for the tail surfaces.

User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 4
Reply 6, posted (12 years 10 months 1 week 1 day 21 hours ago) and read 1765 times:

OK, I'll bite, what's a TKS system?

Top Of Page
Forum Index

Reply To This Topic Commercial A/C De-icing
No username? Sign up now!

Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Tech/Ops related posts only!
  • Not Tech/Ops related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)

Similar topics:More similar topics...
Engine Start-up Durring De-icing! posted Mon Mar 6 2006 03:27:13 by CYEGsTankers
De-icing At Gate posted Sat Dec 10 2005 22:17:46 by Pilatusguy
De-icing -29.C! posted Tue Dec 21 2004 03:31:37 by CYEGsTankers
De-Icing posted Wed Dec 15 2004 01:05:18 by Njdevilsin03
De-icing Conditions posted Tue Nov 2 2004 21:45:28 by United4EverDEN
De-icing Fluid Types posted Tue Oct 26 2004 02:00:52 by CYEGsTankers
De-Icing Question posted Mon Apr 19 2004 21:17:00 by NickB
De-Icing Aircraft posted Thu Feb 19 2004 03:12:01 by ETStar
De-Icing posted Tue Feb 17 2004 17:42:02 by Dfrankie
CO's De-icing Structure At EWR posted Sat Feb 7 2004 17:07:24 by Cory6188

Sponsor Message:
Printer friendly format