General 3 Flashcards
Who may make a maintenance record entry for approval for return to service after a progressive inspection is performed when the aircraft is away from homebase?
- an appropriately certified mechanic with an inspection authority (IA)
- An FAA certified repair station
- the aircraft manufacturer
What is the minimum scope and detail that a checklist must contain when performing a 100 hour inspection?
As outlined FAR part 43 appendix D
How does blade flapping help compensate for dissymmetry lift in helicopter main rotor systems?
Increases the angle of attack and lift on the retreat blade of the rotor and decrease the angle of attack and lift on the advancing blade side
What are the four principle forces acting on an airplane in flight?
- lift
- drag
-Thrust - gravity
What is the angle between the cord line of an air foil and the direction of the relative wind called?
Angle of attack
Define kinetic energy
Energy of motion
Work is the product of what two factors?
Force applied and the distance removed
What causes an airplane wing to stall?
Separation of the airflow from the wing upper surface when the angle of attack exceeds a critical value
What effects do the lowering of flaps have on airplane in flight?
Lift increases, drag increases, and the stall speed decreases
What is the function of wing mounted vortex generators?
Keep or delay the airflow from separating from the upper surface of the wings during high-speed flights
What term defines the temperature at which all molecular motion ceases?
Absolute ZERO
What change occurs in the flow of air through the main rotor system of a helicopter when transitioning from normal flight to auto rotation?
During normal flight, the air moves downward and during auto rotation, the air moves upward
