M11.13 Flashcards
Where is the location of centre of gravity for aircraft with nose wheel steering?
In front of the main wheels
Where is the centre of gravity for aircraft that have tail wheel steering?
Behind the main wheels
Why is it better to land with nose wheel steering?
- brake harder
- lower angle of attack
- see the runway
What is meant by main wheel loading?
When the main landing gear takes most of the weight
How main tyres does a bogie landing gear have?
More than 2
What is used to control aircraft steering?
Rudder pedals
What is the maximum angle for aircraft steering when using the pedals?
10°
When would you steer with the pedals?
When taking off or landing
What is the maximum angle for steering when using a tiller?
80°
What does the shock strut do?
It absorbs the shock on landing
What are the two telescopic cylinders of a main landing gear?
Inner and outer
What does the trunnions link do?
Transmits shock loads into the aircraft structure
What is the jo of the torsion link?
To allow for vertical movement but stop rotational moving
What is the drag strut used for?
To stabilise the shock strut
How is the side strut locked in position?
By being over centred and using the down lock mechanism (spring and actuator)
What is the job of the fluid metering device?
To control the speed of the actuators
What is the job of the downlock sensor?
To show when the landing gear is down and locked
What are the three different flow control devices?
Laminar, tapered, rebound
What are the two types of shock strut bearings?
Upper and lower
What does the upper bearing do?
Keep the inner cylinder aligned to the outer cylinder
What is the job of the lower bearing?
It keeps the inner cylinder aligned inside the outer cylinder
Where are the main landing gear spare seals kept?
In the spare seal cavities
What happens if there is too much oil in the shock strut?
It becomes very hard on landing
What happens if there is too much gas in the shock strut?
It becomes too soft on landing
