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FH.XI.H.K1c

Knowledge

Exhibits knowledge of the elements related to ground resonance by describing:

Landing surface

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From the FAA library

  • Chapter 11: Helicopter Emergencies and Hazards › Autorotation › Common Errors

    weight is placed on the landing carriage, slowing the helicopter; however, this is dependent on the condition of the landing surface. One common error is the holding of the helicopter off the surface, versus cushioning it onto the surface during ... contacting the tail boom. The rotor rpm should be used to cushion the helicopter on to the surface for a controlled, smooth landing instead of allowing the helicopter to drop the last few inches. Common Errors 1. Not understanding…

  • Chapter 5: Aerodynamics of Flight › Ground Effect

    This is due to the air that is trapped between the wing and the landing surface, as if there were an air cushion. This phenomenon is called ground effect. When an aircraft in flight comes within several feet…

  • Glossary › Pilot’s Operating Handbook/Airplane Flight Manual

    drag and induced drag. Touchdown zone elevation (TDZE). The highest elevation in the first 3,000 feet of the landing surface, TDZE is indicated on the instrument approach procedure chart when straight-in landing minimums are authorized. Touchdown zone lights…

  • Chapter 11: Helicopter Emergencies and Hazards › Autorotation › Technique (How to Practice)

    weight is placed on the landing carriage, slowing the helicopter; however, this is dependent on the condition of the landing surface…

  • Chapter 10: Advanced Flight Maneuvers › Shallow Approach and Running/Roll-On Landing › Technique

    Allow the helicopter to descend gently to the surface in a straight-and-level attitude, cushioning the landing with the collective. After surface contact, move the cyclic slightly forward to ensure clearance between the tail boom and the rotor disk ... that, due to the increased ground friction when the collective is lowered or if the landing is being executed to a rough or irregular surface, the helicopter may come to an abrupt stop and the nose might pitch forward. Exercise…

  • CHAPTER 2. REDUCING GENERAL AVIATION ACCIDENTS › 2.3 Runway Incursion Risks and Avoidance

    priorities. Flight instructors should also provide training to GA pilots to mitigate wrong surface landing incidents. Recently, the FAA Air Traffic Organization (ATO) has advised of an increase in wrong surface landings in the NAS. For more information, please refer ... Safety Alert for Operators (SAFO) 17010, Incorrect Airport Surface Approaches and Landings. To understand and mitigate the risk of a runway incursion, GA pilots and flight instructors should become familiar with the following information…