Aircraft Components
What are the three types of fuselage construction
Truss, Monocoque, and semi-monocoque
What's the average psi for commercial airliners
3000 to 5000 psi
What do air brakes do
increase drag to slow down the aircraft and minimize braking.
What is a variable pitch propeller
The blade is able to be adjusted in flight to maximize power use
What are primary flight controls?
Ailerons, rudder, elevator
What are some benefits of a semi-monocoque design
Stable, efficient and flexibility in design
What is the temperature range for hydraulic fluid used in commercial aircraft
-65 to 160 degrees F
What do pneumatic systems control
cabin pressurization, air conditioning, engine starting and anti ice systems.
What is a constant speed prop
The aircraft has a governor that maintains target RPM in all phases of flight.
Secondary flight controls?
Flaps, slats, elevator, trim
What are some types of airfoil design commonly used.
Straight, Elliptical, Tapered, Sweptback and Delta
How is hydraulic pressure controlled in aircraft
Pressure regulators and relief valves maintain system pressure within safe limits to prevent damage.
What are the two types of induction systems
Carburetor and Fuel injection
What are the types of blade forces
Centrifugal, torsional, and bending stresses
Tertiary Flight controls?
Autopilot and stability assist
What is the use of the cowling
The cowling protects the engine and streamlines airflow to allow the engine to cool down.
What happens if hydraulic systems fail
Most systems are independent from each other for redundancy so if you lose one you may still have the other system operational.
What are some important factors of the oil system
Engine lubrication, cooling of the engine, carries contaminates and reduces friction
Why are propeller blades twisted
To maintain a uniform angle of attack to help with lift distribution and thrust balance.
the Four types of flaps
plain, split, fowler and slotted
Shear, bending, torsion, compression and tension
What are the three types of engine pumps
Engine-driven, electric motor driven and hand pumps for emergencies.
What are the components of a basic electrical system in an aircraft
Alternator/generator, electric fuel pump, stall warning system, pitot heat and a starting motor.
How is a governor on a propeller regulated
Due to flyweights regulating the oil pressure via rpm sensing
What do spoilers do?
disrupt airflow to reduce lift which aids in decent control