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Pressure Distribution and Angle of Attack in Aerodynamics

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Pressure Distribution and Angle of Attack in Aerodynamics

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Questions and Answers

What is the main effect of ice accumulation on a helicopter's rotor blades?

Increases performance and decreases weight

Modifies the blade shape, decreasing rotor performance (correct)

Causes minimal impact, not affecting flight performance

Decreases resistance and increases lift

How does ice accumulation impact a helicopter's rotor's weight?

Significantly increases the weight of the rotor blades (correct)

Decreases the weight due to the low density of ice

Depends on the thickness of the ice layer

Has no effect on the weight of the rotor blades

Which areas of an aircraft are affected by ice contamination according to the text?

Only the wings and landing gear

Mainly the engine intakes and windows

The areas where water droplets impact the aircraft (correct)

None of the above

How does ice accumulation impact the performance of a helicopter's rotor?

Decreases lift and increases resistance Signup and view all the answers

What happens when ice conforms to the shape of a rotor blade profile?

Causes a change in angle of attack and reduces performance Signup and view all the answers

How does a 1 cm thick layer of ice impact the weight of a rotor blade?

Increases it by 30% Signup and view all the answers

What is the primary impact of ice contamination on a helicopter's engine intakes?

Reduces engine efficiency and increases fuel consumption Signup and view all the answers

How does ice accumulation affect a helicopter's lift capability?

Causes a decrease in lift due to altered profile shape Signup and view all the answers

What can be deduced about helicopter performance when ice accumulates on its airspeed sensors?

Performance decreases as airspeed data becomes unreliable. Signup and view all the answers

How does ice accumulation affect visibility from a helicopter's windshield?

Visibility decreases due to obstructed view from ice buildup. Signup and view all the answers