Podcast
Questions and Answers
When calculating weight and balance for an aircraft, when is an aircraft considered to be in balance?
When calculating weight and balance for an aircraft, when is an aircraft considered to be in balance?
- When the average moment arm of the loaded aircraft falls within its CG range. (correct)
- When the movement of passengers, usable fuel, luggage, and cargo will not cause the moment arms to fall outside the CG range.
- When all the moment arms of the aircraft fall within CG range.
What must you do prior to weighing an aircraft to determine the aircraft's empty weight?
What must you do prior to weighing an aircraft to determine the aircraft's empty weight?
- Remove all items except those on the aircraft equipment list; drain fuel and fill hydraulic reservoir. (correct)
- Remove all items except those on the aircraft equipment list; drain fuel, compute oil and hydraulic fluid weight.
- Remove all items except those on the aircraft equipment list; drain fuel and hydraulic fluid.
What does the useful load of an aircraft consist of?
What does the useful load of an aircraft consist of?
- crew, usable fuel, passengers, and cargo. (correct)
- crew, passengers, usable fuel, oil, cargo, and fixed equipment.
- crew, usable fuel, oil, and fixed equipment
If an aircraft's weight and balance records become lost, destroyed, or otherwise inaccurate, which of the following can provide the empty weight of an aircraft?
If an aircraft's weight and balance records become lost, destroyed, or otherwise inaccurate, which of the following can provide the empty weight of an aircraft?
In the theory of weight and balance, what is the name of the distance from the fulcrum to an object?
In the theory of weight and balance, what is the name of the distance from the fulcrum to an object?
(1) Private aircraft are required by regulations to be weighed periodically.
(2) Private aircraft are required to be weighted after making any alteration.
(1) Private aircraft are required by regulations to be weighed periodically. (2) Private aircraft are required to be weighted after making any alteration.
In order to obtain useful weight data for determining an aircraft’s CG, it is essential that an aircraft be weighed
In order to obtain useful weight data for determining an aircraft’s CG, it is essential that an aircraft be weighed
In weight and balance computation, what type of measurement is used to designate arm?
In weight and balance computation, what type of measurement is used to designate arm?
What determines whether the value of a moment is preceded by a plus (+) or a minus (-) sign in aircraft weight and balance?
What determines whether the value of a moment is preceded by a plus (+) or a minus (-) sign in aircraft weight and balance?
On an aircraft weighting form, what should be clearly indicated?
On an aircraft weighting form, what should be clearly indicated?
If the datum line is placed at the nose of an aircraft,
If the datum line is placed at the nose of an aircraft,
Zero fuel weight is the
Zero fuel weight is the
The empty weight of an aircraft is established by
The empty weight of an aircraft is established by
The term "maximum weight" when dealing with weight and balance of an aircraft, is interpreted to mean the maximum
The term "maximum weight" when dealing with weight and balance of an aircraft, is interpreted to mean the maximum
Most modern aircraft are designed so that if all seats are occupied, full baggage weight is carried, and all fuel tanks are full. What will be the weight condition of this aircraft?
Most modern aircraft are designed so that if all seats are occupied, full baggage weight is carried, and all fuel tanks are full. What will be the weight condition of this aircraft?
To get the highest degree of aircraft leveling accuracy, the use of a
To get the highest degree of aircraft leveling accuracy, the use of a
In the process of weighing an airplane toward obtaining the CG, the arms from the weighing points always extend
In the process of weighing an airplane toward obtaining the CG, the arms from the weighing points always extend
The useful load of an aircraft is the difference between
The useful load of an aircraft is the difference between
Certificated under current airworthiness standards (FAR Part 23) when determining the empty weight of an aircraft, the oil that is contained in the supply tank is considered
Certificated under current airworthiness standards (FAR Part 23) when determining the empty weight of an aircraft, the oil that is contained in the supply tank is considered
Where can the maximum weight as used in weight and balance control of a given aircraft normally be found?
Where can the maximum weight as used in weight and balance control of a given aircraft normally be found?
An aircraft's LEMAC and TEMAC are defined in terms of distance
An aircraft's LEMAC and TEMAC are defined in terms of distance
When weighing an aircraft with the scales under each landing gear wheel, what could cause inaccurate readings on the weighing scales?
When weighing an aircraft with the scales under each landing gear wheel, what could cause inaccurate readings on the weighing scales?
What information is necessary from the weight and balance records when accomplishing loading computations on small aircraft?
What information is necessary from the weight and balance records when accomplishing loading computations on small aircraft?
If you have to weigh an aircraft which has full fuel tanks, you must subtract the fuel weight from the scale readings
If you have to weigh an aircraft which has full fuel tanks, you must subtract the fuel weight from the scale readings
An aircraft with an empty weight of 2,100 pounds and an empty weight CG + 32.5 was altered as follows:
two 18-pound passenger seats located +73 were removed; structural modifications were made at +77 increasing weight by 17 pounds: a seat and safety belt weighing 25 pounds were installed at +74.5:radio equipment weighing 35 pounds was installed at +95 : What is the empty weight CG?
An aircraft with an empty weight of 2,100 pounds and an empty weight CG + 32.5 was altered as follows: two 18-pound passenger seats located +73 were removed; structural modifications were made at +77 increasing weight by 17 pounds: a seat and safety belt weighing 25 pounds were installed at +74.5:radio equipment weighing 35 pounds was installed at +95 : What is the empty weight CG?
An aircraft as loaded weighs 4,954 pounds at a CG of +30.5 inches. The CG range is +32.0 inches to +42.1 inches. Find the minimum weight of the ballast necessary to bring the CG within the CG range. The ballast arm is +162 inches. RMULA: Ballast weight needed = (Total Weight) x (Distance needed to shift CG)
Distance between ballast location and desired CG
An aircraft as loaded weighs 4,954 pounds at a CG of +30.5 inches. The CG range is +32.0 inches to +42.1 inches. Find the minimum weight of the ballast necessary to bring the CG within the CG range. The ballast arm is +162 inches. RMULA: Ballast weight needed = (Total Weight) x (Distance needed to shift CG) Distance between ballast location and desired CG
An aircraft with an empty weight of 1,800 pounds and an empty weight CG of +31.5 was altered as follows:
(1) two 15-pound passenger seats located at +72 were removed;
(2) structural modifications increasing the weight 14 pounds were made at +76;
(3) a seat and safety belt weighing 20 pounds were installed at +73.5; and
(4) radio equipment weighing 30 pounds was installed at +30
(5) your mother law was cranky and you left her at the airport, she weighs 190 and was sitting at +72
What is the new empty weight CG?
An aircraft with an empty weight of 1,800 pounds and an empty weight CG of +31.5 was altered as follows: (1) two 15-pound passenger seats located at +72 were removed; (2) structural modifications increasing the weight 14 pounds were made at +76; (3) a seat and safety belt weighing 20 pounds were installed at +73.5; and (4) radio equipment weighing 30 pounds was installed at +30 (5) your mother law was cranky and you left her at the airport, she weighs 190 and was sitting at +72 What is the new empty weight CG?
An aircraft had an empty weight of 2,880 pounds with a moment of 101,673.78 before several alterations were made. The alterations included:(1) removing two passengers seats (15 pounds each) at +71;
(2) installing a cabinet (97 pounds) at +71;
(3) installing a seat and safety belt (20 pounds) at +71; and
(4) installing radio equipment (30 pounds) at +94.
The alterations caused the new empty weight CG to move
An aircraft had an empty weight of 2,880 pounds with a moment of 101,673.78 before several alterations were made. The alterations included:(1) removing two passengers seats (15 pounds each) at +71; (2) installing a cabinet (97 pounds) at +71; (3) installing a seat and safety belt (20 pounds) at +71; and (4) installing radio equipment (30 pounds) at +94. The alterations caused the new empty weight CG to move
When making a rearward weight and balance check to determine that the CG will not exceed the rearward limit during extreme conditions, the items of useful load which should be computed at their minimum weights are those located forward of the
When making a rearward weight and balance check to determine that the CG will not exceed the rearward limit during extreme conditions, the items of useful load which should be computed at their minimum weights are those located forward of the
An aircraft with an empty weight of 1,500 pounds and an empty weight CG of +28.4 was altered as follows:
(1) two +12-pound seats located at +68.5 were removed;
(2) structural modifications weighing +28 pounds were made at +73;
(3) a seat and safety belt weighing +30 pounds were installed at +70.5; and
(4) radio equipment weighing +25 pounds was installed at +85.
(6) hydraulic fluid weighing +15 pounds at +85
What is the new empty weight CG?
An aircraft with an empty weight of 1,500 pounds and an empty weight CG of +28.4 was altered as follows: (1) two +12-pound seats located at +68.5 were removed; (2) structural modifications weighing +28 pounds were made at +73; (3) a seat and safety belt weighing +30 pounds were installed at +70.5; and (4) radio equipment weighing +25 pounds was installed at +85. (6) hydraulic fluid weighing +15 pounds at +85 What is the new empty weight CG?
The following alteration was performed on an aircraft:
A model B engine weighing 175 pounds was replaced by a model D engine weighing 185 pounds at a -62.00-inch station. The aircraft weight and balance records show the precious empty weight to be 998 pounds and an empty weight CG of 13.48 inches. What is the new empty weight CG?
The following alteration was performed on an aircraft: A model B engine weighing 175 pounds was replaced by a model D engine weighing 185 pounds at a -62.00-inch station. The aircraft weight and balance records show the precious empty weight to be 998 pounds and an empty weight CG of 13.48 inches. What is the new empty weight CG?
If the empty weight CG of an airplane lies within the empty weight CG limits,
If the empty weight CG of an airplane lies within the empty weight CG limits,
When computing the maximum forward loaded CG of an aircraft, minimum weights, arms, and moments should be used for items of useful load that are located aft of the
When computing the maximum forward loaded CG of an aircraft, minimum weights, arms, and moments should be used for items of useful load that are located aft of the
All other things being equal, if an item of useful load located aft of an aircraft' s CG is removed, the aircraft's CG change will be
All other things being equal, if an item of useful load located aft of an aircraft' s CG is removed, the aircraft's CG change will be
Two elements are vital in the weight and balance considerations of an aircraft.
(1) The total weight of the aircraft must be no greater than the maximum weight allowed by the FAA for the particular make and model of the aircraft.
(2) The center of gravity, or the point at which all of the weight of the aircraft is considered to be concentrated, must be maintained within the allowable range for the operational weight of the aircraft.
Two elements are vital in the weight and balance considerations of an aircraft. (1) The total weight of the aircraft must be no greater than the maximum weight allowed by the FAA for the particular make and model of the aircraft. (2) The center of gravity, or the point at which all of the weight of the aircraft is considered to be concentrated, must be maintained within the allowable range for the operational weight of the aircraft.
The term arm, usually measured in inches, refers to the distance between the center of gravity of an item or object and the datum. Arms ahead of, or to the left of the datum are negative(-), and those behind, or to the right of the datum are positive(+).
The term arm, usually measured in inches, refers to the distance between the center of gravity of an item or object and the datum. Arms ahead of, or to the left of the datum are negative(-), and those behind, or to the right of the datum are positive(+).
The weight and balance problems are based on the physical law of the
The weight and balance problems are based on the physical law of the
Find the empty weight CG location for the following tricycle-gear aircraft. Each main wheel weighs 753 pounds, nosewheel weighs 22 pounds, distance between nosewheel and main wheels is 87.5 inches, nosewheel location is +9.875 inches from datum, with 1 gallon of hydraulic fluid at -21.0 inches included in the weight scale.
HINT: what is included in the empty weight of an aircraft?
Find the empty weight CG location for the following tricycle-gear aircraft. Each main wheel weighs 753 pounds, nosewheel weighs 22 pounds, distance between nosewheel and main wheels is 87.5 inches, nosewheel location is +9.875 inches from datum, with 1 gallon of hydraulic fluid at -21.0 inches included in the weight scale.
HINT: what is included in the empty weight of an aircraft?
The useful load of an aircraft is the difference between
The useful load of an aircraft is the difference between
If an aircraft CG is found to be at 24 percent of MAC, that 24 percent is an expression of the
If an aircraft CG is found to be at 24 percent of MAC, that 24 percent is an expression of the
The CG range in single-rotor helicopters is
The CG range in single-rotor helicopters is
Flashcards
Aircraft in Balance
Aircraft in Balance
When the average moment arm of the loaded aircraft falls within its CG range.
Preparing to Weigh Aircraft
Preparing to Weigh Aircraft
Remove all items except those on the aircraft equipment list; drain fuel and fill hydraulic reservoir.
Aircraft Useful Load
Aircraft Useful Load
Crew, usable fuel, passengers, and cargo.
Lost Weight and Balance Records
Lost Weight and Balance Records
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Distance from Fulcrum
Distance from Fulcrum
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Obtaining Accurate Weight Data
Obtaining Accurate Weight Data
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Arm Measurement
Arm Measurement
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Moment Sign
Moment Sign
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Aircraft Weighing Form
Aircraft Weighing Form
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Datum at Nose
Datum at Nose
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Zero Fuel Weight
Zero Fuel Weight
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Empty Weight Establishment
Empty Weight Establishment
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Maximum Weight Definition
Maximum Weight Definition
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Fully Loaded Modern Aircraft
Fully Loaded Modern Aircraft
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Aircraft Leveling Accuracy
Aircraft Leveling Accuracy
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Arms from Weighing Points
Arms from Weighing Points
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Aircraft Useful Load (defined)
Aircraft Useful Load (defined)
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Oil in Supply Tank
Oil in Supply Tank
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Maximum Weight Location
Maximum Weight Location
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LEMAC and TEMAC Defined
LEMAC and TEMAC Defined
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Inaccurate Scale Readings
Inaccurate Scale Readings
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Loading Computations
Loading Computations
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Full Fuel Tanks Weighing
Full Fuel Tanks Weighing
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Rearward Weight and Balance Check
Rearward Weight and Balance Check
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Maximum Forward Loaded CG
Maximum Forward Loaded CG
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Removed Aft Item
Removed Aft Item
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Weight and Balance Physical Law
Weight and Balance Physical Law
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Useful load
Useful load
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CG as % of MAC
CG as % of MAC
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