Contents
What prevents landing gear from being retracted on the ground?
There is a weight sensor which senses if the plane is on the ground. This sensor prevents gear retraction while the plane is still on the ground.
What type of fluid is used in the landing gear retraction system?
pressurized hydraulic fluid
A hydraulic landing gear retraction system utilizes pressurized hydraulic fluid to actuate linkages to raise and lower the gear. When the switch is moved to the UP position, hydraulic fluid is directed into the gear up line.
Why do some planes not have a gear up?
There’s an old saying about flying aeroplanes with retractable landing gear: ‘there are those that have, and those who will’ have a gear-up landing. Landing without extending the landing gear is a frighteningly common occurrence. It is almost always the result of pilot distraction, or an interruption of usual habit patterns.
When do you have a landing gear problem?
When a landing gear problem does occur, it may well be as part of a larger failure scenario that has led to a loss of hydraulics, electrics and/or engines. Time available may also be limited if the failure becomes apparent towards the very end of a flight. Consider any unusual occurrences prior to manifestation of the problem.
When does the gear warning not work on a plane?
In some aeroplanes the gear warning also sounds if the flaps are fully down when the gear is not. This warning only works, however, if you select full flaps. Some pilots don’t use full flaps for every landing, especially in windy conditions, and in these cases the warning will not sound.
When to cycle the landing gear after taxiing?
If it is suspected that taxiing through slush or wet snow may have led to deposits adhering to the landing gear assemblies, then it may be advisable to cycle the gear after initial post take off retraction to try and shed any deposits.