- 産業: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
A measure of rotational speed. One RPM is one revolution made in one minute.
Industry:Aviation
A measure of speed used in aerial navigation. One knot is equal to one nautical mile per hour.
One knot = 1.151 statute miles per hour
: = 1.688 feet per second
: = 1.852 kilometers per hour
: = 0.5144 meters per second
Industry:Aviation
A measure of the ability of a device to conduct electricity. The symbol for conductance is G, and it was once measured in mhos (ohm spelled backward), but it is now measured in siemens.
Industry:Aviation
A measure of the amount of coupling that exists between the two windings of a transformer. If all the expanding and contracting lines of magnetic flux from one winding cut across all the turns of the other winding, the coefficient of coupling is unity, 1.0, or 100%.
Industry:Aviation
A measure of the amount of electrical stress an insulation can withstand before it breaks down and conducts. Insulation strength is measured in volts-per-unit of insulation thickness, normally in volts-per-mil (0.001 inch).
Industry:Aviation
A measure of the amount of error, or difference between an actual value and its indicated value. Accuracy is usually expressed in terms of percentage of the full range of measurement.
For example, if voltage is measured on a voltmeter having a full-scale range of ten volts, and the meter has an accuracy of plus or minus two percent of its full-scale reading, the voltage indication will be accurate to within 2% of ten volts, or it will be accurate within plus or minus 0.2 volt.
Industry:Aviation
A measure of the amount of fuel burned in a heat engine to produce a given amount of power. Specific fuel consumption of a reciprocating engine is expressed in pounds of fuel burned per hour for each horsepower produced.
Industry:Aviation
A measure of the amount of fuel used for a given amount of power developed by a heat engine.
BSFC is expressed in pounds of fuel burned per hour for each brake horsepower the engine is developing.
Industry:Aviation
A measure of the amount of mass in a unit volume. An example is the amount of mass in a cubic foot, cubic inch, or cubic centimeter. Density is usually expressed in such units as pounds per cubic foot or grams per cubic centimeter.
Industry:Aviation
A measure of the amount of stress needed to permanently deform a material. When a piece of material is stressed to a value within its elastic limit, it will deform, but will return to its original size and shape when the stress is removed. When the material is stressed to its yield point, it will not return to its original size and shape when the stress is removed; it will be permanently deformed.
Industry:Aviation
