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15 Cards in this Set
- Front
- Back
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Arm |
horizontal distance in inches from the reference datum line to the center of gravity of an item. |
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Basic Empty Weight (GAMA) |
standard empty weight plus optional and special equipment that has been installed. |
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Center of Gravity |
Point where the aircraft could be balanced on a point, expressed in inches from datum |
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Center of gravity limits |
specified forward and aft or lateral points beyond which the CG must not be located during takeoff, flight or landing. |
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Datum |
imaginary vertical plane or line from which all measurements of arm are taken. It is established by the manufacturer. |
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Floor load limit |
maximum weight the floor can sustain Per square inch/foot as provided by the manufacturer. |
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Fuel load |
The expendable part of the load of the aircraft. It includes only useable fuel, not fuel required to fill the lines or which remains trapped in the sump tanks |
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Maximum Ramp Weight |
total weight of a loaded aircraft, and includes all fuel. It is greater than the takeoff weight due to the fuel that will be burned during the taxi and runup operations Ramp weight may also be referred to as taxi weight. |
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Mean aerodynamic chord (MAC) |
average distance from the leading edge to the trailing edge of the wing. The MAC is specified for the aircraft by determining the average chord of an imaginary wing which has the same aerodynamic characteristics as the actual wing. |
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Moment |
The product of weight multiplied by arm. Expressed in pound inches |
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Moment index |
moment divided by a constant such as 100, 1,000, or 10,000. The purpose of using a moment index is to simplify weight and balance computations of large aircraft where heavy items and long arms result in large, unmanageable numbers. |
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Payload |
Weight of occupants, cargo, and baggage |
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Standard empty weight |
airframe, engines, and all items of operating equipment that have fixed locations and are permanently installed in the airplane; including fixed ballast, hydraulic fluid, unusable fuel, and full engine oil. |
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Station |
location in the aircraft which is identified by a number designating its distance in inches from the datum. The datum is, therefore, identified as station zero. The station and arm are usually identical. An item located at station +50 would have an arm of 50 inches. |
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Useful Load |
The weight of the pilot, passengers, baggage, usable fuel and drainable oil. It is the empty weight subtracted from the maximum allowable takeoff weight. The term applies to GA aircraft only |
