Glenco Ch. 5

  1. Motion about the lateral axis is called
  2. In straight and level unaccelerated flight, which of the following is correct?
    Lift equals weight
  3. Dihedral contributes most to stability of the airplane about its
    longitudinal axis
  4. If an aircraft has neutral static stability and is deflected from the attitude for which it is trimmed, it will
    remain in the new attitude
  5. When an aircraft has differential ailerons
    the up airleron deflects more than the down aileron
  6. An aircraft with positive dynamic pitch stability
    would return to level flight through a series of constantly reducing oscillations after being displace by and air gust
  7. Primary control surfaces on conventional aircraft are the
    airlerons, elavators, rudder
  8. The ratio of the total gross weight of the aircraft divided by the total wing area is called
    wing loading
  9. The elevators of a conventional airplane are used to provide rotation about the
    lateral axis
  10. The two forces acting along an aircraft's longitudinal axis are
    thrust and drag
  11. When the control wheel is displaced on the right
    the right aileron will move up
  12. The purpose of spring tabs or servo tabs is to
    assist the pilot in moving the control surfaces
  13. If the control stick of an aircraft with properly rigged flight controls is moved rearward and to the left, the right aileron will move
    down and the elevator will move up
  14. The vertical flight of a helicopter is controlled by
    increasing or decreasing collective pitch
  15. An airplane that has a tendency to gradually increase a pitching moment that has been set into motion has
    poor longitudinal stability
  16. Which statement is correct concerning torque effect on helicopters?
    Torque direction is the opposite of rotor blade rotiation
  17. If the control stick of an aircraft with properly rigged flight controls is moved forward and to the right, the left aileron will move
    down and the elevator will move down
  18. Movement of an airplane along its lateral axis (roll) is also movement
    around or about the longitudinal axis controlled by the airlerons
  19. Movement about the longitudinal (roll) in a helicopter is effected by movement of
     the cyclic pitch control
  20. Movement about the lateral axis (pitch) in a helicopter is effected by movement of
    the cyclic pitch control
  21. An airplane is controlled directionally about its vertical axis by
    the rudder
  22. The elevators of a conventional airplane are used to provid rotation about the
    lateral axis
  23. A helicopter in forward flight, cruise configuration, changes direction of flight by
    tilting the main rotor disk in the desired direction
  24. Tilting of the rotor tip-path plane is controlled by the
  25. A tandem-roter helicopter uses
    two main rotors, counterrotating
  26. A decrease in the pitch of the tail rotor blades causes the fuselage of the ship to
    turn in the opposite direction of the main rotor
  27. What is the cause of main rotor-blade "coning"?
    lift force
  28. A single-rotor helicopter wishing to move toward 6:00 postition would need the highest blade pitch imputed at the
    3:00 position  
  29. Gyroscopic precession cause the resultant ultimate force to occur how many degrees from the applied force?
    90o in direction of rotation
  30. Translational lift affects a helicopter that is
    moving horizontally at more than 15kn.
  31. Th difference between the angles of incidence for two airfoils on a biplane is called
  32. The action of the rotor blade that minimizes the effects caused by dissymmetry of lift is
  33. The principle factor in limiting helcopter maximum speed in foward flight is
    retreating blade stall
  34. When the helicopter blades are at their lowest pitch and all have the same angle, the collective stick is
    full down and the cyclic stick is centered
  35. What turns the main rotor during autorotation?
    Aerodynameic Forces
  36. The fastest moving point on a rotor blade is the
    advancing blade tip
  37. How is the torque force associated with single-rotor  helicopters  compensated?
    A tail rotor with variable pitch mechanism
  38. In a hover, which component(s) act vertically?
    all of the above
  39. Blade hunting is caused by
    coriolis effect
  40. the direction that a helicopter is facing may be changed by the
    antitorque pedals
  41. the tendency of a helicopter to drift in the direction of the tail rotor thrust is referred to as
    translating tendency
  42. Rotor droop is counteracted by
    centrifugal force
Card Set
Glenco Ch. 5
Glenco Ch. 5 multiple choice