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airspeed
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airspeed
n.
speed of an aircraft relative to the air through which it moves
| English Wikipedia - The Free Encyclopedia | Download this dictionary |
Airspeed
Airspeed is the speed of an aircraft relative to the air. Among the common conventions for qualifying airspeed are: indicated airspeed ("IAS"), calibrated airspeed ("CAS"), true airspeed ("TAS"), equivalent airspeed ("EAS") and density airspeed. During cruising flight at altitudes, airspeeds, and temperatures common for airliners, the four speeds trace a shape that looks like the mathematical square root symbol (v). Starting with indicated airspeed, calibrated is normally very close to the indicated airspeed, while equivalent is normally less than both indicated and calibrated, and true is normally higher than the other three.
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| WordNet 2.0 | Download this dictionary |
airspeed
Noun
1. the speed of an aircraft relative to the air in which it is flying
(hypernym) speed, velocity
| BTS Transportation Expressions | Download this dictionary |
Airspeed
The speed of an aircraft relative to its surrounding air mass. The unqualified term "airspeed", means one of the following. 1) Indicated Airspeed. The speed shown on the aircraft airspeed indicator. This is the speed used in pilot/controller communications under the general term "airspeed." 2) True Airspeed. The airspeed of an aircraft relative to undisturbed air. Used primarily in flight planning and en route portion of flight. When used in pilot/controller communications, it is referred to as "true airspeed" and not shortened to "airspeed." (FAA4)
| FAA Pilot/Controller Glossary | Download this dictionary |
AIRSPEED
The speed of an aircraft relative to its surrounding air mass. The unqualified term "airspeed" means one of the following:
a. Indicated Airspeed
The speed shown on the aircraft airspeed indicator. This is the speed used in pilot/controller communications under the general term "airspeed."
(Refer to 14 CFR Part 1.)
b. True Airspeed
The airspeed of an aircraft relative to undisturbed air. Used primarily in flight planning and en route portion of flight. When used in pilot/controller communications, it is referred to as "true airspeed" and not shortened to "airspeed."
a. Indicated Airspeed
The speed shown on the aircraft airspeed indicator. This is the speed used in pilot/controller communications under the general term "airspeed."
(Refer to 14 CFR Part 1.)
b. True Airspeed
The airspeed of an aircraft relative to undisturbed air. Used primarily in flight planning and en route portion of flight. When used in pilot/controller communications, it is referred to as "true airspeed" and not shortened to "airspeed."
Source: U.S. Department of Transportation, Federal Aviation Administration (FAA).
