Exercise 2 - Answer key (1)
1. What is the most commonly used landing gear?
Single axle landing gear with one tire fitted on each side, mounted on a large strut.
2. What is the function of the nitrogen inside the strut?
It acts as a spring force.
3. What is the function of the truck positioning actuator?
This actuator is attached aft of the main gear strut and pushes their rear wheels downwards forcing the forward wheels to move upwards as the chock is actually mounted on the main strut. The rear wheels touch down first, the actuator holds up against the pushing force, otherwise the rear tires could bounce up, slamming the forward wheels into the ground.