Flight Instructor for Rotorcraft Category Helicopter Rating › II. Technical Subject Areas › Task E. Flight Controls

HI.II.E.K4

Knowledge

Throttle and governor, if equipped.

Study note

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.

From the FAA library

Helicopter Flying Handbook p. 8-6
Chapter 9: Basic Flight Maneuvers
helicopters perform the same way. Even when flying the same model of helicopter, wind, temperature, humidity, weight, and equipment make it difficult to predict just how the helicopter will perform. Therefore, this chapter presents the basic flight maneuvers ... indicate both types of rotor systems. However, when discussing throttle coordination to maintain proper rotations per minute (rpm), there is no differentiation between those helicopters with a governor and those without. In a sense, the governor is doing the work…
Pilot's Handbook of Aeronautical Knowledge p. 7-6
Chapter 7: Aircraft Systems › Adjustable-Pitch Propeller
throttle controls power output, and the propeller control regulates engine rpm. This regulates propeller rpm, which is registered on the tachometer. Once a specific rpm is selected, a governor automatically adjusts the propeller blade angle as necessary to maintain ... decrease the same way as if a fixed-pitch propeller were installed. The same holds true when an aircraft equipped with a constant-speed propeller accelerates to a faster airspeed. As the aircraft accelerates, the propeller blade angle increases…
Helicopter Flying Handbook p. 11-16
Chapter 11: Helicopter Emergencies and Hazards › Low Rotor RPM and Rotor Stall
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 or a governor failure in helicopters so equipped…
Aviation Maintenance Technician Handbook - Powerplant p. 7-5
Chapter 7: Propellers › Propeller Aerodynamic Process › Propeller Controls & Instruments
This control is directly connected to the propeller governor and, by moving the control, adjusts the tension on the governor speeder spring. This control can also be used to feather the propeller in some aircraft by moving the control ... manifold pressure is adjusted by the throttle. Propeller Location Tractor Propeller Tractor propellers are those mounted on the upstream end of a drive shaft in front of the supporting structure. Most aircraft are equipped with this type of propeller…