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It has been suggested that Ice protection system be merged into this article or section. (Discuss) |
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It has been suggested that Icing conditions be merged into this article or section. (Discuss) |
Atmospheric icing occurs when water droplets in the atmosphere freeze on objects they contact. This is very dangerous on aircraft, as the built-up ice changes the aerodynamics of the flight surfaces, which can increase the risk of a subsequent stalling of the airfoil.
Not all water freezes at 0°C or 32°F. Liquid water below this temperature is called supercooled, and such supercooled droplets cause the icing problems on aircraft. Below -20°C, icing is rare because clouds at these temperatures usually consist of ice particles rather than supercooled water droplets. Below -40oC it is generally accepted that icing on aircraft is negligible.
Icing also occurs on towers, wind turbines, boats, oil rigs, trees and other objects exposed to low temperatures and water droplets.
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Related aircraft incidents
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This list is incomplete; you can help by expanding it.
- 13 Jan 1982 Air Florida Flight 90
- 26 Dec 1989 United Airlines Flight 2415
- 31 Oct 1994 American Eagle Flight 4184
- 9 Jan 1997 Comair Flight 3272
- 19 Mar 2001 Comair Flight 5054
- 12 Feb 2009 Continental Connection Flight 3407
See also
References
FAA (U.S.) Advisory Circular 20-113: Pilot Precautions and Procedures to be taken in Preventing Aircraft Reciprocating Engine Induction System and Fuel System Icing Problems
FAA (U.S.) Advisory Circular 20-117: Hazards Following Ground Deicing and Ground Operations in Conditions Conducive to Aircraft Icing
FAA (U.S.) Advisory Circular 20-147: Turbojet, Turboprop, and Turbofan Engine Induction System Icing and Ice Ingestion
Wind Energy in Cold Climates: Icing on wind turbines
External links
- Airline Regulators Grapple With Engine-Shutdown Peril WSJ April 7, 2008
- Supercooled liquid water and airframe icing
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