Weight and Balance

Question 1

An aircraft is considered to be in balance when?

Answer 1

When nose heavy moments and tail heavy moments are equal

or

when the moments of the loaded aircraft fall within its CG range

Question 2

On what document(s) can the maximum weight be found?

Answer 2

TCDS, Aircraft Specifications, and Aircraft flight manual

Question 3

Where can an airplane’s EWCG be found?

Answer 3

In the aircraft’s weight and balance report

Question 4

What is the most important reason for an aircraft weight and balance?

Answer 4

Safety (and efficiency)

Question 5

Why do you weigh an Aircraft inside?

Answer 5

So wind doesn’t cause an error on scale readings

Question 6

Concerning weight and balance, what information is NOT found in the Type Certificate Data Sheet?

Answer 6

EWCG

Question 7

What is the formula for the center of gravity?

Answer 7

Total moments / Total weight

Question 8

What task do you complete prior to weighing an aircraft?

Answer 8

Drain fuel and top off oil and hydraulic fluid

Question 9

When weighing an aircraft, how is the tare weight dealt with?

Answer 9

Subtract it from the scale readings

Question 10

The useful load consists of what?

Answer 10

Crew, passengers, cargo, baggage, water, temporary ballist, and useable fuel

Question 11

Why is the datum line often placed ahead of the aircraft?

Answer 11

So that all arms will be positive numbers

Question 12

Maximum weight means what?

Answer 12

Maximum authorized weight

Question 13

Is oil considered tare weight? What is?

Answer 13

No
Any weight that is not part of or included in the aircraft weight
Ex: Chocks, loading straps

Question 14

How much fuel should be left in the tank(s) for weighing?

Answer 14

Only unusable fuel

Question 15

The center of gravity of an aircraft means what?

Answer 15

CG is the point at which all the weight of the aircraft is concentrated or balanced

Question 16

In weight and balance computations, what is the term used to designate the distance an item is located from the datum?

Answer 16

Lever Arm

Question 17

The influence of weight is dependent upon its distance from what?

Answer 17

Center of Gravity

Question 18

What items should be indicated on the aircraft weighing form?

Answer 18

Detailed weighing points, EWCG, EW

Question 19

Is the CG range in a single-rotor helicopter greater or less than airplanes?

Answer 19

Less than

Question 20

If an aircraft’s weight and balance records become lost, where or how can you find the current EW?

Answer 20

Reweigh the aircraft

Question 21

The arms for the weighing points always extend…

Answer 21

parallel to the centerline of the airplane

or

perpendicular to the datum

Question 22

Why must the aircraft be weighed in level flight attitude?

Answer 22

So that the CG will fall within the same range when flying

Question 23

Do the same weight and balance procedures apply to helicopters?

Answer 23

Yes
Aircraft = longitudinally
Helicopter = longitudinally and laterally

Question 24

what is zero fuel weight?

Answer 24

The heaviest an aircraft can be loaded with no usable fuel

Question 25

Improper loading of a helicopter which results in exceeding either the CG limits will result in what control being lost?

Answer 25

Cyclic pitch control

Question 26

If it is necessary to weigh an aircraft with full fuel tanks how do you figure it into your calculations?

Answer 26

All fuel should be subtracted from the scale weights

Question 27

Is the oil contained in the supply tank considered part of the useful or empty weight load?
How about water in the reservoir?

Answer 27

Oil is part of the empty weight
Water is part of the useful load