Exercise 15b: Flight emergencies

OBJECTIVES:

 

In this lesson, the student will learn how to correctly to identify the emergency and be able to execute the appropriate response or recovery action. Repeated practice and exposure to simulated emergency conditions will better prepare the student for handling a real emergency should they ever occur.

 

LESSON CONTENT:

  1. Demonstrate engine failure in the Hover
    • Ensure a safe hover height 3-5ft
    • Ensure that the area over which the engine cut is demonstrated is clear and safe for the exercise
    • Establish a steady hover, and brief the student on what to expect
    • Advise the student to follow on the controls.
    • Confirm that the student is ready, and warn about closing the throttle, roll the throttle off gently (Never chop the throttle)
    • Apply right pedal to keep the aircraft straight, do not over compensate by booting in the right pedal
    • Maintain position control over the ground with the cyclic
    • Raise the collective just before touch down to cushion the landing
    • Once on the ground, fully lower the collective, neutralize the pedals, disengage the clutch and follow standard shut down procedures

 

  1. Brief engine failure in Hover Taxi
    • Corrective action as per engine cut in the hover
    • Reiterate the differences when the engine fails in the hover taxi
    • Accept the current forward speed, and emphasize the importance of maintaining direction with the pedals, keeping the skids aligned and parallel with direction of travel to ensure a safe run on.
    • Raise collective just before touch down to cushion the landing. To slow the run on speed, gradually start to lower the collective to increase friction (Settle the weight of the aircraft in contact with the ground)
    • Once on the ground, fully lower the collective, neutralize the pedals, disengage the clutch and follow standard shut down procedures

 

  1. Demonstrate engine failure in flight:
    • As per exercise 13

 

  1. Brief tail rotor failure in Forward flight
    • Failure will be indicated by an un-commanded right yaw that can not be corrected with left pedal input
    • In forward flight, this results in the aircraft yawing right and rolling left
    • Maintain airspeed above 70KIAS with as low a power setting as possible (To reduce torque effect) and allow for the stability effects of the vertical stabilizer to assist with directional control.
    • If speed is insufficient, and directional control can not be maintained, enter autorotation by closing the throttle (eliminating torque) and maintain directional control with the pedals
    • Complete autorotation holding the throttle closed
  2. Demonstrate tail rotor failure in the Hover
    • Failure will be indicated by an un-commanded right yaw that can not be corrected with left pedal input
    • If left uncorrected, the helicopter will continue spinning rapidly.
    • Ensure that the area over which the emergency is demonstrated is suitable
    • Simulate loss of tail rotor in the hover by applying right pedal to induce a right yaw, and ask the student to remove their feet off the pedals.
    • Demonstrate the corrective action by slowly rolling off the throttle, to reduce the torque and control the rate of right yaw.
    • Maintain positive position control over the ground with the cyclic
    • Time the rate of throttle closure with the favored direction of landing
    • Once throttle is fully closed,
  3. Brief Ground emergencies

 

COMPLETION STANDARDS:

 

At the completion of this exercise the student must be able to correctly identify the emergency procedure and be able to fly the corrective response. They need to be able to consider any other relevant risks and demonstrate mature decision-making. The student will display confidence in managing the cockpit and be able to correctly prioritize tasks and responsibilities to be able to safely land the aircraft.

 

 

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