M8.3 Glide Ratio

What does the symbol Δs represent in the context of glide ratio?

• Change in speed

• Change in distance

• Change in height

• Change in weight

If two aircraft have the same Lift-to-Drag ratio but different weights, which one will arrive at the touch-down point quicker?

• The lighter aircraft

• The heavier aircraft

• Both arrive at the same time

• Neither will arrive

What must a heavier aircraft do to obtain the same glide ratio as a lighter one?

• Increase its altitude

• Decrease its airspeed

• Increase its airspeed

• Decrease its weight

What is the formula for the glide ratio? (2 correct answers)

• L/D = Δh/Δs

• L/D = Vdown/Vforward

• L/D = Δs/Δh

• L/D = Vforward/Vdown

What is the principal effect of weight on an aircraft's glide?

• It changes the glide ratio

• It changes the time the aircraft glides

• It changes the lift-to-drag ratio

• It changes the altitude

What does the glide angle represent in the diagram?

• The angle of descent

• The angle of ascent

• The angle of the wings

• The angle of the tail

What is the significance of the glide ratio in aviation?

• It determines the fuel efficiency

• It determines the descent path

• It determines the takeoff speed

• It determines the cruising altitude