Term
| The imaginary vertical plane from which all horizontal measurements are taken, with the aircraft in a level flight attitude |
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Definition
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Term
| A location along the fuselage, in inches, from the reference datum |
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Definition
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Term
| The horizontal distance, in inches, that an item is located from the datum |
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Definition
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Term
| The product of (Weight x Arm.) Expressed in lb. in. |
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Definition
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Term
| The moment divided by 100, 1000, or 10,000 |
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Definition
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Term
| The point at which the weight of the aircraft is concentrated. |
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Definition
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Term
| The maximum amount of weight of the aircraft and its contents. |
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Definition
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Term
| The weight of the aircraft with all operating equipment that has a fixed location. |
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Definition
Empty Weight
Note: Includes fixed ballast, oil, hydraulic fluid, and unuseable fuel |
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Term
| Maximum weight minus empty weight. |
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Definition
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Term
| The CG of the aircraft in the empty weight condition. |
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Definition
Empty Weight Center of Gravity
(EWCG) |
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Term
| The distance between the forward and aft CG limits |
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Definition
Operating CG Range
a. Determined by the manufacturer
b. Listed on TCDS
c. Expressed in inches or percent MAC |
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Term
| Allowable variation of travel within CG limits. |
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Definition
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Term
| The mean average chord of the wing. |
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Definition
| Mean Aerodynamic Chord (MAC) |
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Term
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Definition
| The Leading Edge of the Mean Aerodynamic Chord |
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Term
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Definition
| The Trailing Edge of the Mean Aerodynamic Chord |
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Term
| Reference points for leveling the aircraft on the ground. |
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Definition
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Term
| Points at which the aircraft weight is concentrated. |
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Definition
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Term
| The maximum allowable weight of the aircraft without fuel |
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Definition
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Term
| The amount of fuel that must be shown on the weight and balance report when the aircraft is loaded for an extreme condition check |
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Definition
Minimum Fuel
½ lb. per engine hp. |
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Term
| The quantity of oil shown in the TCDS |
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Definition
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Term
| Fuel that can not be consumed by the engine |
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Definition
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Term
| The weight of all items not part of the aircraft that reflect in the scale readings. |
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Definition
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Term
weight of:
1-gal aviation gasoline
1-gal lubricating oil
1-gal turbine fuel
1-gal water
Pilot
Passenger |
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Definition
Gas = 6.00 lbs.
Oil = 7.50 lbs.
Turbine fuel = 6.70 lbs.
Water = 8.35 lbs.
Pilot = 170.00 lbs.
Passenger = 170.00 lbs. |
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Term
| where is the data required to weigh the aircraft? |
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Definition
-Aircraft TCDS
-Aircraft weight and balance report
-Aircraft maintenance manual – aircraft weighing checklist / aircraft weighing procedures
-Aircraft equipment list |
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Term
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Definition
-[(Wt of acft as loaded)(Distance out of limits)]
Divided by
-(Arm from ballast location to limit affected) |
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