ACFT Flashcards

1
Q

What is the difference between groundspeed and indicated airspeed?

A

Indicated airspeed is groundspeed +/- wind speed

Groundspeed is how fast the aircraft is moving compared to ground
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2
Q

What are the 4 forces acting on an aeroplane?

A

Drag, Lift, Thrust & Gravity/weight

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3
Q

How many percent is the bypass ratio when accelerating the jet engine?

A

80-85 %

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4
Q

What are the basic parts in a jet engine?

A

Air intake, compressor, combustion chamber, Turbines and exhaust

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5
Q

What are the two groups of drag?

A

Induced drag

Parasite drag

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6
Q

What are parasite drags two sub groups?

A

1) Profile drag: form and skin

2) Interference drag

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7
Q

What are the difference between a stable, neutrally stable and unstable aircraft?

A

STABLE aircraft tends to return to its original
condition after being disturbed.

NEUTRALLY STABLE aircraft will
assume a new position

UNSTABLE aircraft will continue to
diverge from its original position

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8
Q

What three axes does the aircraft do

1) Yaw
2) Pitch
3) Roll

A

1) Vertical
2) Lateral
3) Longitudinal

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9
Q

What does ailerons do?

A

They increase lift on one wing and reduce lift on the other.

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10
Q

What does the elevator do?

A

Change the amount of lift generated

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11
Q

What does the rudder do?

A

Change the amount of yaw generated

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