Essay on Aircraft Icing

1893 Words May 26th, 2013 8 Pages
Aircraft Icing

Aircraft Icing
What are the Causes and Possible Solutions?
Richard C. Williams
Commercial Aviation Safety
Mr. Gary Tindall
February 28, 2009

Aircraft Icing

CONTENTS:
Page
3 …………………………………………Abstract 4 …………………………………………Introduction 4 …………………………..…………… Icing Causes: 4..………………………………………. Carburetor icing: 5………………………………………… Structural Icing 6…………………..…………………….. Types of Structural Icing 8…………………………………………. Icing protection systems 9………………………………………….Conclusion 10………………………………………….References

Aircraft Icing

ABSTRACT

Ice and aircrafts are
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Clear ice forms when the drops are large and the droplets impacting an airplane freeze slowly, spreading over the aircraft components gradually forming a smooth sheet of solid ice (Lester, 2004). Clear ice is the most dangerous form of structural icing because it is heavy and hard; it adheres strongly to the aircraft surface greatly disrupting airflow. Clear ice will normally form while flying through cumuliform clouds and through freezing rain (Lester, 2004). Rime ice is the most common icing type and forms while flying through stratified clouds and freezing drizzle (Lester, 2004). It forms when water droplets freeze on impact, trapping air between the small frozen drops, giving the ice a milky white appearance. Mixed ice has characteristics of both types making it a combination of rime and clear ice.

Aircraft Icing

The following NTSB summary describes the dangers of inadvertently encountering ice and the effect it will have on the ability of the aircraft to maintain lift and stability: CE 182. One serious and one minor injury. Pilot received a weather briefing approximately one hour prior to flight during which “A chance of light icing” was forecast. Approximately 30 minutes after takeoff, while at 6,000 feet, a small amount of ice began to form on the strut in the light rain. Although the aircraft was then cleared to climb above the cloud layer, heavy icing began to accumulate. The aircraft could not climb above 7,300 MSL and a 300 – 400 feet

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