Flight Instructor for Rotorcraft Category Helicopter Rating › XI. Emergency Operations › Task G. Low Rotor Revolutions Per Minute (RPM) Recognition and Recovery

HI.XI.G.R5

Risk management

Low inertia rotor systems.

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Helicopter Flying Handbook p. 11-3
Chapter 11: Helicopter Emergencies and Hazards › Autorotation › RPM Control
Control Rotor rpm in low inertia rotor systems has been studied in simulator flight evaluations which indicate that the simultaneous application of aft cyclic, down collective, and alignment with the relative wind (trim) at a wide range of airspeeds, including…
Helicopter Flying Handbook p. 11-14
Chapter 11: Helicopter Emergencies and Hazards › Low-G Conditions and Mast Bumping
very low-altitude tactical flight technique used by the military where the aircraft flies following the contours of the geographical terrain. The accident sequence may be extremely rapid, and the energy and inertia in the rotor system can sever…
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
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…