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Aviation Glossary :: Torque  Aviation Glossary :: Torque FAA Written Test Preparation
Aviation Glossary Welcome to the Dauntless Aviation Glossary!

At Dauntless, our editorial staff maintains the web's largest unified glossary of aviation terms. This glossary is built from a combination of official, quasi-official, and proprietary sources (including original material that we develop oursselves). Uniquely, we often provide multiple definitions of a given term so that you can find that which best applies to you. In order to maximize your learning efficiency, this glossary (and similar ones for our international users) is incresingly fully integrated into our aviation learning apps, including our FAA written test prep and FAA practical test prep software and apps. If you like this glossary, you'll love them with their polished learning environments and world's best and clearest content (please do give them a try.).

Torque
Torque
A twisting, gyroscopic force acting in opposition to an axis of rotation, such as with a turning propeller; aka Torsion.
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source: FAA Aerosense Glossary

  1. A resistance to turning or twisting.
  2. Forces that produce a twisting or rotating motion.
  3. In an airplane, the tendency of the aircraft to turn (roll) in the opposite direction of rotation of the engine and propeller.
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source: FAA Airplane Flying Handbook (FAA-H-8083-3A)

A force that produces or tries to produce rotation.
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source: FAA Aviation Maintenance Technician Airframe Handbook (FAA-H-8083-31)

The tendency of a force to cause or change rotational motion of a body.
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source: FAA Aviation Maintenance Technician General Handbook (FAA-H-8083-30)

A force that produces or tries to produce rotation.
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source: FAA Aviation Maintenance Technician Powerplant Handbook (FAA-H-8083-32)

In helicopters with a single, main rotor system, the tendency of the helicopter to turn in the opposite direction of the main rotor rotation.
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source: FAA Helicopter Flying Handbook (FAA-H-8083-21A)

  1. A resistance to turning or twisting.
  2. Forces that produce a twisting or rotating motion.
  3. In a WSC, the tendency of the aircraft to turn (roll) in the opposite direction of rotation of the engine and propeller.
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source: FAA Weight Shift Control Handbook (FAA-H-8083-5)

Torque, moment, or moment of force (see the terminology below) is the tendency of a force to rotate an object about an axis, fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist to an object. Mathematically, torque is defined as the cross product of the lever-arm distance vector and the force vector, which tends to produce rotation.

Loosely speaking, torque is a measure of the turning force on an object such as a bolt or a flywheel. For example, pushing or pulling the handle of a wrench connected to a nut or bolt produces a torque (turning force) that loosens or tightens the nut or bolt.

The symbol for torque is typically the Greek letter tau. When it is called moment of force, it is commonly denoted M.

The magnitude of torque depends on three quantities: the force applied, the length of the lever arm connecting the axis to the point of force application, and the angle between the force vector and the lever arm.

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source: Wikitionary / Wikipedia and Related Sources (Edited)


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Disclaimer: While this glossary in most cases is likely to be highly accurate and useful, sometimes, for any number of editorial, transcription, technical, and other reasons, it might not be. Additionally, as somtimes you may have found yourself brought to this page through an automated term matching system, you may find definitions here that do not match the cotext or application in which you saw the original term. Please use your good judgement when using this resource.


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