(5) Weight And Balance Flashcards
Downward pull of the gravity towards the center of the earth
Weight
Location on an object where the cg is located; primarily concerned with stability of the aircraft
Balance
Imaginary vertical plane from which all measurements are taken
Datum
Point or support where the lever pivots
Fulcrum
Distance of an object from the reference datum
Arm
Object’s weight multiplied by the arm
Moment
Theoretical point at which weight is presumed to be concentrated
Cg
Forward and aft areas where CG is located
Cg limits
Distance between the forward and aft CG indicated at a pertinent aft specification safe support zone
Cg range
Weight of the aircraft and all factors on it
Gross weight
Weight of the aircraft including unusable fuel, full operating liquids, full engine oil, other equipment
Basic empty weight
Basic empty weight not including drainable engine oil and unusable fuel
Licensed empty weight
Weight of the aircraft when all loads are imposed on it
Ramp weight
Weight of the aircraft as it starts its takeoff roll
Takeoff weight
Weight of the aircraft over the landing threshold
Landing weight
Basic items including payload, fuel
Useful load
Used in weight and balance computations
Delta
Load that is expendable
Fuel load
Location on the aircraft identified by a number designating distance in inches from the datum
Station
Weight of passengers, cargo
Payload
Consists of crew weight, crew baggage, fuel, oil, med/survival kit, optional equipment
Basic operating weight
Consists of passenger weight, passenger baggage, cargo
Actual payload
A/C empty weight + BOW + actual payload - fuel allowance for startup, run up, taxi
TO weight
TO weight - fuel burned
Landing weight
Kg x 2.2
Kg to pounds
Fuel in gallons x 6
Fuel in gallons to pounds
Quarts x 7.5 / 4
Oil in quarts to lbs
8.35 per 1 US gal
Water
6.7 lbs per 1 US gal
Jet fuel
Use of simple math
Computational
Alternative for computational, requires graph sup0lied by manufacturer
Graph method
Solving CG by using table; may be required with interpolation
Table method