Pilot Institute
JUNE 4, 2025
A constant-speed propeller is a propeller that automatically adjusts its blade pitch angle, allowing it to maintain a constant RPM (Revolutions Per Minute), regardless of engine power (torque), airspeed, or altitude. The constant-speed propeller is often referred to as the variable-pitch propeller, in contrast to the fixed-pitch propeller.
Plane and Pilot
MARCH 10, 2025
cubic inches of it, to create a tidal wave of torque that permits it to run a paltry 2,700 rpm at the max. Liquid cooling means so-called shock cooling on descent just isnt a thing. Specifically, Rotaxs approach to putting 160 hp to the prop flange is fundamentally different from Lycomings. On top of all this, the Rotax is light.
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Flying Magazine
JULY 22, 2025
Pulling the prop back to 1,500 rpm (from its normal 1,700 rpm) reduces the noise level but does not change speed or fuel burn as the autothrottle adjusts torque. We experimented with varying descents from an emergency descent profile—from coming down at nearly 10,000 fpm to seeing if we could cure being high and fast on an arrival procedure.
Pilot Institute
FEBRUARY 20, 2025
The rotational force thats needed to move an object about an axis is called torque. The simplest formula for torque is: Torque = F x L L is the distance between the object and the axis of rotation, also called the moment arm. The resulting loss of lift leads to a rapid descent by the aircraft.
Pilot Institute
APRIL 12, 2025
The complication with helicopters is that the main rotor is driven by an engine that applies a twisting force (torque) to spin it. This is called torque reaction, and if its left unchecked, the helicopter fuselage will spin in the opposite direction of the main rotor. These rotors create equal and opposite torques that cancel out.
Fear of Landing
APRIL 19, 2024
At approximately 30-40 feet agl, the spinning stopped and the helicopter appeared to stabilize for a brief moment before continuing a nose-low, forward descent into the grass north of Runway 28. Then he followed the installation procedure, including the mast nut torque application. As it descended it spun around 2-3 times.
Pilot's Life Blog
FEBRUARY 11, 2025
The elevator, situated on the horizontal tail surface, adjusts pitch, raising or lowering the nose for ascent or descent. Helicopter Controls Helicopter pilots utilize three main controls: the cyclic, collective, and anti-torque pedals. Helicopters use a cyclic, collective, and anti-torque pedals, requiring coordination for stability.
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