8 Structure
What does Monocoque Structure consist of?
What hydraulic pressure range do typical commercial airliners operate at?
3000 to 5000 PSI
What are some different types of "landing gear"?
Tricycle, tailwheel, skids, skis, and floats
Vertical, lateral, longitudinal, and the meet about the center of gravity
Why are pneumatics less efficient than hydraulics?
Pneumatics deal with air which can be compressed where hydraulics use non compressible oil
What does a Semi-monocoque Structure consist of?
Stressed skin, formers, and structural stringers.
What type of hydraulic fluid do most airliners use?
Skydrol and Hyjet
What is an oleo strut?
A strut consisting of oil and compressive air
What are the primary flight controls?
Elevator, rudder, and alerons
What are pneumatics used for on aircraft?
Air conditioning, pressurization, flight instrumentation, engine starting systems, and deicing equipment
What is camber?
The depth of curve of the wing
What type of injuries can occur from a hydraulic leak?
Amputation, severe lacerations, micro cutting, and even crushing
What are some advantages of the tri-cycle landing gear configuration?
Better visibility, more effective brake use, and more stability
What is fly by wire?
Pilot inputs are converted to electrical signals
via computers. These computers then interpret the commands from the pilot and ensure stability through
actuation of the flight controls
Where does bleed air come from?
The aircrafts engines
What is the cord line of a wing?
What functions are offten powered by hydrolics
Breaks, flight controls, thrust reversers, spoilers, nose wheel steering, cargo doors, and landing gear
When brakes are activated independently of each other, what is this called?
Differential braking
Flaps, slats, spoilers, and trim
To what altitude do most commercial airlines pressurise their cabins to?
8,000ft
What are the 6 advantages to winglets?
Fuel Efficiency, Extended Range, Environmental Impact, Improved Climb Performance, Noise Reduction, and Aesthetic Appeal
What temp range are most comersial hydrolic systems rated to function from?
-65 to 160ºF
Oftentimes times what are brakes controlled by?
The hydraulic system
What are the different Tertiary / Augmentation Systems?
Autopilot and Stability Assist
What systems power the Pneumatic systems of an aircraft?
Bleed air, APU, Ground Pneumatic carts, and engine-driven vacuum/pressure pumps.