- 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 nozzle in a gas turbine engine that limits the speed of the gases flowing through it. The gases speed up until they reach the speed of sound. At this point, a normal shock wave forms that prevents further acceleration.
Industry:Aviation
A nuclear weapon in which two light elements such as deuterium and tritium are forced together under extreme conditions of heat and pressure. When two of the light nuclei join together to form a heavier nucleus (this is called atomic, or nuclear, fusion), a tremendous amount of heat is released. A hydrogen bomb is far more powerful than the original atomic bomb.
Industry:Aviation
A number or letter written to the right of, and partially below, an abbreviation or a number. In gas turbine engine operation, the symbol PAm identifies ambient pressure. “P” stands for pressure, and the subscript “Am” tells that this pressure is ambient pressure. The chemical formula for water is H2O. The subscript “2” indicates that two atoms of hydrogen unite with one atom of oxygen to form one molecule of water.
Industry:Aviation
A number or symbol that has a fixed value for a given condition. An example of a constant useful in aviation maintenance is the relationship between the circumference of a circle and its diameter. This constant has a value of 3.1416 and is commonly known by the Greek letter pi (π).
Industry:Aviation
A number rating from zero to 12, used by the weather bureau to describe wind speed.
: Beaufort Velocity
: Force (knots) Indication
: 0 less than 1 smoke rises vertically
: 1 1 – 3 wind blows smoke
: 2 2 – 7 wind felt on face
: 3 8 – 12 leaves in motion
: 4 13 – 18 raises dust and loose paper
: 5 19 – 24 sways small trees
: 6 25 – 31 moves large branches of trees
: 7 32 – 38 whole trees in motion
: 8 39 – 46 breaks twigs off of trees
: 9 47 – 54 slight structural damage
: 10 55 – 63 uproots trees
: 11 64 – 72 widespread damage
: 12 73 – 136 devastation
Industry:Aviation
A number relating the change in the length of an object to the change in its temperature. The coefficient of linear expansion is expressed in such terms as fractions of an inch per degree Celsius.
Industry:Aviation
A number system that uses 16 as its base. The values from 0 through 9 are represented by the numerals 0 through 9, and values from 10 through 15 use the letters A through F. Hexadecimal numbers can easily be converted into binary numbers for use in a computer. Values of up to decimal 255 or binary 1111 1111 can be expressed by using only two hexadecimal digits, FF.
Decimal Hex Binary Decimal Hex Binary
: 0 0 0000 8 8 1000
: 1 1 0001 9 9 1001
: 2 2 0010 10 A 1010
: 3 3 0011 11 B 1011
: 4 4 0100 12 C 1100
: 5 5 0101 13 D 1101
: 6 6 0110 14 E 1110
: 7 7 0111 15 F 1111
Industry:Aviation
