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Aircraft Icing Essay

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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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A forced landing was subsequently made in a field, where the airplane collided with a utility pole and landed in a ditch. An examination of the engine revealed no evidence of mechanical failure or malfunction. An icing probability chart revealed that the reported weather conditions in the area were favorable for the formation of moderate carburetor icing at cruise power. The Cessna 172M owner’s manual notes that a gradual loss in rpm and eventual engine roughness may result from the formation of carburetor ice and prescribes the use of carburetor heat to clear the ice. (Civil Aviation Authority, 2006).
Structural Icing: The previous report refers to induction icing within the engine, but other forms of icing attach to the exterior of the aircraft called “structural icing”. Airframe or structural icing refers to the accumulation of ice on the exterior of the aircraft during flight through
Aircraft Icing

clouds or liquid precipitation when the skin temperature of the aircraft is equal to, or less than 0 deg C (Lester, 2004).
Types of Structural Icing: Structural icing takes on many forms depending on the size of the moisture that comes in contact with the aircraft. The types of structural ice are clear, rime and a combination of the two. The primary concern over even the slightest amount of structural ice is the loss of aerodynamic efficiency. The increase in drag caused by the additional ice also causes an increase in stall speed, instability and a decrease in
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