11.3 Structures Aeroplanes Flashcards
What is the primary function of the fuselage frames?
To maintain the shape of the fuse and to carry and distribute shear and tension loads.
What is the purpose of the dorsal fin?
To join the fin smoothly from the fuse.
What is the purpose of the sliding cockpit window?
To provide a emergency crew exit and clear vision of the ground.
What is the main function of the passenger door torque tube?
To rotate the door to the cocked position.
What are the main structural components in an aircraft wing?
Ribs, spars, stringers and skin
What is the mainframe of the wing designed to do?
Transmit loads to the fuse structure.
How can the front spar of the horizontal stab be accessed?
By removing the front leading edge
Which of the following statements is true? (stabs)
Stabilisers, horizontal and vertical are outside the fuse pressurised area
How is the rudder attached to the aircraft?
Hinged to the trailing edge of the vertical stab
What is the purpose of the failsafe bolt on the control surfaces hinge?
To provide a safe method of maintaining structural integrity should one of the internal or external parts of the bolt be damaged.
What loads are transmitted by the pylon bearings?
Lateral and longitudinal loads between the wing and pylon
What is the purpose of the wing nacelle fairings?
To provide an aerodynamic profile to reduce drag
How is an engine pylon attached to the wing?
Two links at the front and a spigot at the rear
What is the purpose of a vent hole in the inner pane of the cabin windows?
To equalise the pressure between the two panes and the cabin
How are the cockpit windows and windscreens installed?
Externally onto the aircraft frame
