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22 Cards in this Set
- Front
- Back
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Where must a record be kept of the current empty weight and center of gravity of an aircraft? |
In the aircraft flight manual or weight and balance records |
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What is meant by the datum that is used for weight and balance computations? |
A readily identified reference chosen by the aircraft manufacturer from which all longitudinal locations on the aircraft are referenced |
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Why are the distances of all the items installed in an aircraft measured from the datum when computing weight and balance? |
It makes it possible to find the point at which the aircraft will balance also know as the center of gravity |
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What are two reasons weight and balance control are important in an aircraft? |
For safety and the most efficient performance of the aircraft |
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What is meant by moment in the computation of weight and balance? |
A force that tends to cause rotation |
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How do you find the moment of an item that is installed in an aircraft? |
It's calculated by mutiplying the weight of the item installed in the aircraft in pounds times the distance of the item from the datum in inches |
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What is meant by the arm of an item that is installed in an aircraft? |
It is the distance in inches between the center of gravity and the datum of that item |
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Why must we consider the category under which an aircraft is licensed when we compute it's weight and balance? |
Because aircrafts licensed under different categories have different maximum gross weight and center of gravity ranges |
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Where can you find the leveling means that are specified for a particular aircraft? |
In the Type Certificate Data Sheet of the aircraft |
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Where is the arm of an item installed in an aircraft recorded? |
In the Type Certificate Data Sheet for the aircraft |
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What must be done to find the empty weight of an aircraft if it has been weighed with fuel in it's tanks? |
The weight of the fuel and it's moment must be subtracted from the weight and moment of the aircraft as it was weighed |
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What is meant by the tare weight that is used in weight and balance computation? |
The weight of the chocks and other items used to hold the aircraft on the scales |
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What must be done to the tare weight when an aircraft is weighed? |
Subtract it from the scale reading to find the actual weight of the aircraft |
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What is meant by minimum fuel as is used in the computation of aircraft weight and balance? |
The quantity of fuel necessary for one half hour of operation at rated maximum continuous power |
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What is meant by the maximum zero fuel weight of an aircraft? |
The maximum permissible weight of a loaded aircraft including passengers, crew, cargo, etc less its fuel |
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What is meant by undrainable or residual fuel? |
Fuel that remains in the tank, lines and components when the aircraft is placed in level flight position and fuel drained at the main fuel strainer |
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Describe the way you would find the empty weight and empty weight center of gravity of an airplane if there are no weight and balance records available? |
Weigh the aircraft, compute the new empty weight center of gravity, and start a new record of the aircrafts weight and balance records |
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What is meant by permanent ballast for an aircraft? |
Permanent weight installed in the aircraft to bring the empty weight center of gravity within allowable limits |
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Which has the more critical center of gravity range, an airplane or a helicopter? |
A helicopter |
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What equipment must be installed in an aircraft when it is weighed to find its empty weight center of gravity? |
All items on the aircraft' equipment list marked as required or permanently installed |
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What is the significance of the empty weight center of gravity range of an aircraft? |
If the empty weight center of gravity falls within the empty weight center of gravity range, the aircraft cannot be legally loaded such that its loaded center of gravity will fall outside of the allowable loaded center of gravity range, not all aircraft have an empty weight center of gravity range |
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Why is the empty weight center of gravity not given in the Type Certificate Data Sheets for some aircraft? |
Because not all aircraft can be legally loaded in such a way that their loaded center of gravity will not fall outside of the allowable limits |
