Aircraft Weight And Balance Flashcards
Maximum Ramp Weight?
Max Weight approved for ground operation.
Maximum Takeoff weight
Max weight for the start of the takeoff roll
Basic Empty Weight
Weight of Aircraft, optional or special equipment, fixed ballast, unusable fuel and full operating fluids required for normal operations.
Standard Empty Weight
Weight of an aircraft without optional equipment, obtained from aircraft manufacturer.
Payload
Weight of crew, passengers, cargo and baggage.
Useful Load
Difference between max takeoff weight and basic empty weight.
Usable Fuel
Fuel available for flight
Unusable Fuel
Fuel that cannot be safely (dependably) used during flight.
Zero Fuel Weight
Operational Weight of the aircraft including payload but excluding the fuel load.
Center of Gravity (CG)
The point along the aircraft’s longitudinal axis at which the aircraft’s weight is concentrated.
Center of Gravity Range
The limits within which an aircraft must balance for safe flight.
Datum
An imaginary vertical plane from which all horizontal measurements are taken.
Weighing Points
Specific points on an aircraft where scales or load cells are placed for weighing.
MAC
Average chord of a wing, or chord drawn through the center of the wing plan area.
TCDS
Manufacturer-Furnished document containing pertinent information for aircraft weighing such as CG Range and Maximum Weight.
The useful load of an aircraft consists of which of the following?
Crew, usable fuel, passengers, and cargo.
The maximum weight of an aircraft is the?
Empty weight plus useful load.
In regard to weight and balance, “residual fuel” is?
The fuel left in the tanks, lines, and engine after draining.
When dealing with weight and balance of an aircraft, the term “maximum weight” is interpreted to mean the maximum?
Authorized weight of the aircraft and its contents.
Operating aircraft above its maximum weight could result in?
Structural deformation or failure during flight.
Lavatory water is considered to be part of the empty weight of an aircraft. True or False?
False.
Small privately owned aircraft are required to be weighed periodically. True or False?
False
Hydraulic fluid and unusable fuel are considered to be part of the empty weight. True or False?
True.
What is the primary purpose of weight & balance of aircraft?
Safety.
Aircraft operated under CFR Part 125 and 135, Air Carrier, Commuter, and ON-Demand Operations, are required by the FAR’s to be weighed
Periodically, typically ever 36 months.
The aircraft positioning for weighing should?
Be in a level flight attitude.
In the process of weighing an airplane toward obtaining the CG, the arms from the weighing points always extend.
Parallel to the centerline of the airplane.
In the theory of weight and balance, what is the name of the distance from the fulcrum to and object?
Lever Arm
Which would have and effect of aircraft CG results when conducting a weight and balance check?
Use of which of the following generally yields the highest degree of aircraft leveling accuracy?
Spirit level(s).
What type of measurement is used to designate the arm in weight and balance computation?
Weight x Distance
What determines whether the value of a moment is preceded by a plus (+) or a minus (-) sign in aircraft weight and balance?
