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Aviation Glossary :: Watt
Aviation Glossary :: Watt
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.).

Watt
Watt
The unit of power in the metric system. The watt describes how fast a circuit uses electrical energy.
source: ARRL Ham Radio Glossary
Watt (W) is the unit for measuring power. In physics terms, one watt is one Joule of energy transferred or dissipated in one second. Electrical power is calculated as:

  Watts = Volts x Amps x Power Factor

The power factor can be disregarded for DC circuits or for AC circuits with a resistive load (it is 1 in those situations).

source: Electrical Engineering Glossary
the unit of power; equal to a joule per second.
source: FAA Acceptable Methods - Aircraft Inspection and Repair (AC 43.13-1B)
The basic unit of electrical power. One watt is equal to 1?746 horsepower.
source: FAA Aviation Maintenance Technician Airframe Handbook (FAA-H-8083-31)
A unit of power equal to one joule per second.
source: FAA Aviation Maintenance Technician General Handbook (FAA-H-8083-30)
The basic unit of power in the metric system. One watt is the amount of power needed to do one joule (0.7376 foot-pounds of work) in one second. One watt is 1?746 horsepower.
source: FAA Aviation Maintenance Technician Powerplant Handbook (FAA-H-8083-32)
Unit of power in the MKS system of units; energy per unit of time, one Joule per second (1 J/s). Abbreviated W.
source: NOAA National Weather Service Glossary

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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.