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TH-67 Limitations Exam

Instructions: Answer each question in its entirety. If you do not answer it 100% correct, it is wrong.

  1. Engine Oil Pressure
    • psi Minimum below % N1
    • psi Minimum from % to % N1
    • psi Minimum above % N1
    • psi Minimum
    • psi Maximum
    • Note: During temperature operation the oil pressure may exceed the maximum of psi. Stabilize the engine at engine idle speed of % to % until the engine oil temperature is above C and the engine oil pressure is within normal limits.
  2. Engine Oil Temperature
    • C to C Continuous Operation
    • C Maximum
  3. Transmission Oil Pressure
    • psi to psi Continuous Operation
    • psi Minimum
    • psi Maximum
    • Pressure light comes on at < psi
  4. Transmission Oil Temperature
    • C to C Continuous Operation
    • C Maximum
    • Temp light comes on at > C
  5. Load Meter: % Maximum
  6. Fuel Pressure
    • psi Minimum
    • psi to psi Continuous Operation
    • psi Maximum
    • psi Minimum - (Type A, A1, JP5, JP8) below C to C
  7. Fuel Quantity
    • Red Line on
    • Fuel Low light on at approx gallons
  8. Fuel System Capacities
    • Total fuel capacity gallons
    • Unusable fuel capacity gallons
    • Usable fuel capacity gallons
  9. Torquemeter
    • % to % Continuous Operation
    • > % to % Take-Off Power Range ( Minute Limit)
    • % Maximum
    • Transient TQ Limit is: % to % ( Seconds Maximum)
      Intentional Use is .
  10. Turbine Output Temperature (TOT) Limits:
    • C to C Continuous Operation
    • C to C Take-Off Power Range ( Minute Limit)
    • C Maximum
    • C to C ( Seconds transient) (Not to be used intentionally).
    • C Maximum during startup and shutdown ( Seconds Maximum).
    • Note: Red warning light illuminates when either of the following conditions are exceeded: If exceed C to C for seconds or higher than C.
  11. Gas Producer (N1):
    • % to % Continuous Operation
    • % Maximum
    • % to % Transient ( Seconds Maximum)
  12. Rotor Limits:
    • % Minimum Operation
    • % to % accelerate thru this range
    • % to % Normal Operation
    • % Maximum
    • % Power on Transient Rotor Droop ( Seconds Maximum)
  13. Power Turbine (N2):
    • % Minimum Operation
    • % to % Continuous Operation
    • % Maximum
    • % to % 60 seconds max (time not cumulative)
    • N2 Transient Overspeed Limit: Up to % N2 for seconds maximum depending on torque
  14. Airspeed:
    • to knots continuous operation
    • knots maximum
    • knots maximum for autos
    • VNE for internal gross weights above 3,200 lbs. is knots, not to exceed placarded VNE
    • Note: Autorotoation above knots will result in rates of and rotor RPM.
  15. VMC Airspeed Limits:
    • < lbs. G/W: knots at sea level to ft. pressure altitude, then decreasing knots per 1000 ft. above, to a max density altitude of .
    • > lbs. G/W: knots at sea level to ft. pressure altitude, then decreasing knots per 1000 ft. above, to a max density altitude of .
    • > lbs. G/W: knots, not to exceed placard VNE.
    • Airspeed restrictions for high power settings: knots with > % to % torque applied.
  16. Autorotation Airspeed Limits:
    • Minimum Rate of Descent: knots
    • Maximum Glide: knots
  17. Engine RPM Limitations:
    Warning:
  18. Turbine Outlet Temperature (TOT) Limits:
    Caution:
  19. Wind Limitations:
    • The helicopter can be started in a maximum wind velocity of knots and a maximum gust spread of knots.
    • Note: Gust spreads are not normally reported. To obtain spread, compare minimum and maximum velocities.
    • Maximum wind for hovering is knots crosswind and knot tailwind.
    • For hover operations at gross weights above 3200 lbs.:
      • IGE maneuvers - refer to chapter 8
      • OGE maneuvers -