Commercial Pilot for Rotorcraft Category Helicopter Rating › VIII. Emergency Operations › Task A. Powerplant Failure in a Hover in a Single-Engine Helicopter

CH.VIII.A.K3

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High and low inertia of rotor systems.

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Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

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Helicopter Flying Handbook p. 11-15
Chapter 11: Helicopter Emergencies and Hazards › Low-G Conditions and Mast Bumping
energy and inertia in the rotor system can sever the mast or allow rotor blades to strike the tail or other portions of the helicopter. Figure 11-8. Result of improper corrective action in a low-G condition. Turbulence, especially ... severe downdrafts, can also cause a low-G condition and, when combined with high airspeed, may lead to mast bumping. Typically, helicopters handle turbulence better than a light airplane due to smaller surface area of the rotor blades. During flight…
Helicopter Flying Handbook p. 11-21
Chapter 11: Helicopter Emergencies and Hazards › System Malfunctions › Reducing the Onset of LTE
Reducing the Onset of LTE To help reduce the onset of LTE…
Seaplane, Skiplane, and Float/Ski Equipped Helicopter Operations Handbook p. 9-2
OPERATIONAL CONSIDERATIONS
Perform approaches, in which hover power may not be available, by flaring through hovering altitude in a slightly nose-high attitude to reduce forward motion. Just prior to the aft portion of the floats touching down, add sufficient collective pitch ... helicopter to settle to the ground, then reduce collective pitch to the full down position. In helicopters with low inertia rotor systems, an autorotation to a hard surface requires a more aggressive flare to a near-zero groundspeed to ensure…