ACFT

Question 1

What is the difference between groundspeed and indicated airspeed?

Answer 1

Indicated airspeed is groundspeed +/- wind speed

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

What are the 4 forces acting on an aeroplane?

Answer 2

Drag, Lift, Thrust & Gravity/weight

Question 3

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

Answer 3

80-85 %

Question 4

What are the basic parts in a jet engine?

Answer 4

Air intake, compressor, combustion chamber, Turbines and exhaust

Question 5

What are the two groups of drag?

Answer 5

Induced drag

Parasite drag

Question 6

What are parasite drags two sub groups?

Answer 6

1) Profile drag: form and skin

2) Interference drag

Question 7

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

Answer 7

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

Question 8

What three axes does the aircraft do

1) Yaw
2) Pitch
3) Roll

Answer 8

1) Vertical
2) Lateral
3) Longitudinal

Question 9

What does ailerons do?

Answer 9

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

Question 10

What does the elevator do?

Answer 10

Change the amount of lift generated

Question 11

What does the rudder do?

Answer 11

Change the amount of yaw generated