Landing Gear

Question 1

What does the OFF position on the landing gear lever do?

Answer 1

It removes the hydraulic pressure from the landing gear system.

Question 2

Up to how many degrees can the nose wheel steer with the use of the tiller?

Answer 2

65° either direction.

Question 3

Up to how many degrees does the rudder pedals turn the nose wheel?

Answer 3

7° in either direction.

Question 4

Above which speed will the RTO activate when thrust levers are moved to idle?

Answer 4

85kts

Question 5

How is the air/ground logic sensed?

Answer 5

From the tilt sensors in each main gear and from the strut compression sensors of the nose gear.

Question 6

How are the main gears held up?

Answer 6

By resting on the door structures.

Question 7

How is the nose gear held up?

Answer 7

By unlocks.

Question 8

How does the landing gear lowers in the alternat extension mode?

Answer 8

When selecting gear DN on Alternate Extension mode, all doors and gear uplocks are released by an electric motor to allow the gear to free-fall to the down and locked position.

Question 9

Why do the DOORS lights remain illuminated and the EICAS advisory message GEAR DOORS display when using Alternate Extension mode?

Answer 9

Because all the hydraulically powered gear doors remain open.