Airframe Design
What are the three axis around which an aircraft is controllable?
Vertical, Longitudinal, Lateral
What are the 3 major mechanical components of a hydraulic system?
Hydraulic pump, hydraulically powered motor, system plumbing
Airplanes with conventional landing gear are often referred to as this
A Tailwheel Airplane
What is the Center of Pressure?
The point where the total pressure forces acting on an object's surface are concentrated
In most aircraft, which flight instruments are pneumatically powered?
Heading and Attitude indicators
What is a drawback of a monocoque design?
Once deformed, the structure can easily collapse under load
What is the operating pressure of most aircraft hydraulic systems?
3000-5000 psi
What is a main disadvantage of tailwheel landing gear?
Directional control is difficult while on the ground
Rudder, Ailerons, Elevator
What are the primary flight controls?
T/F It is immediately apparent when a pneumatic system fails
False
What is this wing structure called that usually has struts mounted halfway out on the wing?
Semi-Cantilever Wing
T/F Hydraulic fluid acts as a system coolant.
True
What is one way landing gear is classified?
Fixed or Retractable
A horizontal stabilizer and elevator combined
What is a stabilator?
Early recognition of a pneumatic system failure can reduce the chance of this occurring
Spatial Disorientation
What are the 5 stresses that can act on an aircraft?
Shear, Compression, Tension, Torsional, Bending
This system plumbing component is a pressure storage reservoir in which hydraulic fluid is held under pressure by an external source of energy
The Accumulator
Where are the brakes located on an aircraft?
On the main wheels
Which movement does the rudder control?
Yaw
T/F Water or Oil mixing in has no affect on a pneumatic system
False
What is the imaginary line drawn from the leading edge of the wing to the trailing edge of the wing?
The Chord Line
What are 3 ways a hydraulic system can become inoperable?
Overheating, Loss of Pressure, Fluid Contamination
T/F Differential Braking can hinder directional control on the ground in nosewheel/tailwheel aircraft
False
Plain, Fowler, Split, Slotted
What are the 4 types of flaps?
How are pneumatic systems powered?
Bleed Air