Flight Instructor for Rotorcraft Category Helicopter Rating › XII. Special Operations › Task A. Confined Area Operations

HI.XII.A.R9

Risk management

Low rotor rpm.

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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. 11-16
Chapter 11: Helicopter Emergencies and Hazards › Low Rotor RPM and Rotor Stall
Consequently, early recognition of the low rotor rpm condition and proper recovery technique is imperative. Low rotor rpm can occur during power-off and power-on operations. During power-off flight, a low rpm situation can be caused ... occur with a heavily loaded helicopter taking off from a confined area. Other causes of a power-on low rotor rpm condition include the pilot rolling the throttle the wrong way in helicopters not equipped with a governor…
Helicopter Flying Handbook p. 5-6
Chapter 6: Weight and Balance
information that might be covered include physiological factors, general weather information, fuel conservation procedures, external load warnings, low rotor rpm considerations, and recommendations that if not adhered to, could lead to an emergency. Chapter Summary This chapter familiarized the reader…
Helicopter Flying Handbook p. 11-15
Chapter 11: Helicopter Emergencies and Hazards › Low-G Conditions and Mast Bumping
because they retain some control authority at low G, occurrences are less common than for teetering rotors. Low Rotor RPM and Rotor Stall Rotor rpm is a critically important parameter for all helicopter operations. Just as airplanes will ... pilot allows the rotor rpm to fall below the safe operating range, the helicopter is in a low rpm situation. If the rotor rpm continues to fall, the rotor will eventually stall…
14 CFR Part 61 — Certification: Pilots, Flight Instructors, and Ground Instructors Open
14 CFR Part 61, Special Federal Aviation Regulation No. 73—Robinson Helicopter Company, Robinson R-22/R-44 Special Training and Experience Requirements
Federal Aviation Regulation No. 73—Robinson Helicopter Company, Robinson R-22/R-44 Special Training and Experience Requirements (iv) Low rotor RPM recognition and recovery. (4) A person who does not hold a rotorcraft category and helicopter class rating must have ... configuration and maximum glide configuration; (iii) Engine rotor RPM control without the use of the governor, and (iv) Low rotor RPM recognition and recovery. (5) No flight instructor may provide training or conduct a flight review in a Robinson…