Aircraft Structures
What design uses stressed skin and bulkheads?
Monocoque Design
What are hydrualic systems used to power?
Landing gear, flight controls, brakes, etc
What is a reciprocating engine?
An engine where pistons move bakc and forth to produce energy.
What is an adjustabl pitch propellers?
A prop that can be adjusted on the ground but not while flying
What are pneumatics
Using air pressure to control a mechanical function
This design is common in GA aircraft to save interior space
Semi-monocoque design
What pressure are hydrolics operated at.
3,000-5,000 PSI
What are two types of reciprocating engines?
Spark ignition and compression engines
What are the main types of props
fixed and adjustable props
When are pneumatics used on an aircraft
During engine start up, air conditioning, anti ice systems, etc
What makes up the structure of a wing
Spars, Ribs, Streamers
What does the control valve do
Controls the flow and pressure of the fluids
Intake, compression, combustion, exhaust
What is a contant speed prop
What are the three moments?
Pitch, yaw, roll
Rectangular, Swept, Tappered, Elliptical, Delta
Types of wing planforms
What temp can hydraulic fluid run at
-65 to 275 degrees F
What is an example of a compression engine
Diesel engine
Why are prop blades twisted from the root?
To make uniform lift across all parts of the propeller
What controls the lateral axis
Pitch
What do slats do
Slats increase the camber of the wing, increasing lift.
What happens if a line breaks and you get hit by fluid
Death
Where do spark engines get the spark from
Magnetos and spark plugs
What type of propeller is on most summit planes?
cruise prop
What are secondary controls
Flaps, trim, slats, spoilers