Weight and Balance Flashcards
Empty weight includes…
fixed ballast, unusable fuel, oil, hydraulic fluid.
Residual fuel is…
the fuel that will not normally drain out.
Useful load of an aircraft is…
the difference between its empty weight and maximum allowable gross weight.
What does not list an aircrafts empty weight?
Aircraft Specification Sheet, Type Certificate Data Sheet, Flight Manual, and Pilots Operating Handbook.
Arm is…
the horizontal distance from the datum to the center of gravity of the item.
What is the difference between a positive and negative moment?
Positive moment is one that causes the aircraft nose to go up, and a negative moment is one that causes the nose to go down.
The useful load of an aircraft is found by…
subtracting the empty weight of the aircraft from the maximum weight.
Many aircrafts are overloaded by…
the installation of extra radios or instruments.
LEMAC is…
Leading edge of the mean aerodynamic chord.
TEMAC is…
Trailing edge of the mean aerodynamic chord.
part 23
Applies to most general aviation aircraft, defines empty weight of an aircraft.
Empty Weight, according to part 23
includes fixed ballast, unusable fuel, full operating fluids including oil, hydraulic fluid, and other fluids required for normal operation of airplane systems except potable water, lavatory pre-charge water, and water intended for injection in the engines.
When prepping an aircraft for weighing, remove all items except for those on the equipment list, drain fuel, and fill hydraulic reservoir.
Useful load
the difference between its empty weight and the maximum allowable gross weight. It does not include any of the fixed or required equipment as these are part of the empty weight.
TCDS weight and balance information includes hat?
Yes. TCDS weight and balance information includes hat.
Also, CG range, maximum weight, leveling means, number of seats and location, baggage capacity, fuel capacity, datum location, engine horsepower, oil capacity, amount of fuel in empty weight, and amount of oil in empty weight.
When the aircraft is in its level-flight attitude,…
the centers of gravity of all of the items are in their correct locations relative to the datum
No federal aviation regulation requires that private planes be weighed periodically
When a private aircraft is altered,
the weight and balance records must be updated to show any change hat has been made in the weight or in the empty weight CG location.
These changes are normally found mathematically rather than by weighing the aircraft.
Moment
A force that causes rotation about a point.
A positive moment is one that causes the aircraft nose to go up, and a negative moment is one that causes the nose to go down.
+ weight, + arm
+ weight, - arm
- weight, + arm
- weight, - arm
+ moment
- moment
- moment
+ moment
How is the useful load of an aircraft found?
by subtracting the empty weight of the aircraft from the maximum weight.
The weighing form should include what?
leveling means and location of weighing points
The weight and location of what is found in Note 1 in the section of the TCDS, “All pertinent to all models.”
The unusable fuel
