Weight and balance

Question 1

It’s an aircraft is loaded so that the FCJ limit exceeded what undesirable flight characteristic is likely to result

Answer 1

Aircraft. Will be tail heavy, and may be unable to recover from the stall or spin.

Question 2

The records for an aircraft are missing. How do you determine the empty weight and empty weight CG?

Answer 2

The aircraft would have to be weighed in a new weight and balance records would have to be prepared

Question 3

Define tare weight and describe how it is handled when weighing an aircraft

Answer 3

Tare weight is the weight of anything on the scales that is not part of the aircraft. It must be subtracted from the scale weight reading to determine the net weight of the airplane.

Question 4

If a piece of equipment such as a radio is added to an aircraft, how can you determine the effect of weight and balance, without re-weighing, the aircraft?

Answer 4

If the weight and balance records are up-to-date, a new weight and CG location can be termined by computation

Question 5

Why is control of the weight and balance of an aircraft important

Answer 5

Safety and efficiency of flight

Question 6

What is the datum of an aircraft and what is its function?

Answer 6

The datum is an imaginary vertical plane at right angles to the longitudinal axis of the airplane. It is the reference point from which all horizontal measurements are taken.

Question 7

How do you determine the moment of an item of equipment?

Answer 7

The weight of the item is multiplied by its arm, which is the distance between the item and the datum

Question 8

What are two ways of determining the arm of an item of equipment

Answer 8

Measure the distance between the item and the data them, or use data supplied by the manufacturer

Question 9

What should be done to obtain a positive plus moment aft of the datum

Answer 9

Add weight

Question 10

What should be done to obtain a negative minus moment aft of the datum

Answer 10

Remove weight

Question 11

What should be done to obtain a positive plus moment forward of the datum

Answer 11

Remove weight

Question 12

What should be done to obtain a negative minus moment forward of the datum

Answer 12

Add weight

Question 13

How does the category of an aircraft effect its loaded weight?

Answer 13

Aircraft certificated in more than one category such as normal and aromatic may have two different maximum gross weights and different useful loads

Question 14

As you prepare an aircraft for Wayne, you determine that there is equipment aboard that is not permanently installed and recorded on the equipment list. What should you do with this equipment?

Answer 14

All equipment not permanently installed in the aircraft or included on the equipment List should be removed from the aircraft.

Question 15

Defined the term residual fuel

Answer 15

Any fuel that remains in tanks, lines and engines after the system has been drain

Question 16

Defined the term residual oil

Answer 16

Any oil that remains in tanks, lines and engines after the system has been drained

Question 17

We should be done with the fuel, when weighing an aircraft to determine weight and balance

Answer 17

Either drain the fuel system until only unusable fuel remains, or fill the tanks full and subtract the weight of the usable fuel

Question 18

What items pertaining to weight and balance that would be listed in the TCDS type certificate data sheet

Answer 18

CG ranges, max weight, leveling means, number of seats and arms, baggage capacity an arm, fuel and arm, datum, location, engine, horsepower, oil, capacity, and arm, amount of residual, fuel and arm, amount of residual oil and arm

Question 19

Where are leveling instructions found in describe one method of leveling an aircraft

Answer 19

Leveling instructions are found in the type certificate, data sheets and aircraft may be level by using a spirit level at specified points or an aircraft may be leveled by using a plumbob from a designated point, along with the leveling scale or protractor

Question 20

Defined the term mean, aerodynamic cord or MAC

Answer 20

Me and aerodynamic cord is the cord drawn through the center of the wing plane area

Question 21

Describe the two most common ways of showing the CG location, and or CG range

Answer 21

In inches from the datum or in percent of MAC

Question 22

What is the purpose of an aircraft loading graph?

Answer 22

It is a method for determining how to distribute the load so as to keep the CG within allowable limits

Question 23

What is ballast and why would you use it in an airplane?

Answer 23

Ballast is weight added to an airplane to bring its CG in allowable or desired range

Question 24

How should permanent ballast be marked?

Answer 24

In red letters– Permanent ballast do not remove

Question 25

Installation of several new radios in the nose of an aircraft causes the forward CG limit to be exceeded. How can you correct this problem without removing the new equipment?

Answer 25

Ballast may be installed in the tail to move the CGF

Question 26

Explain the performance of a Ford adverse loaded CG check

Answer 26

During a forward adverse loaded CG check all useful load items in front of the forward CG limit are loaded and all useful load items behind the forward CG limit are left empty any seat or baggage compartment located behind the forward CG limit is left empty if the fuel is located behind the forward CG limit minimum fuel will be shown in the tank calculate CG to determine whether it falls within limits

Question 27

Explain the performance of a rearward adverse loaded CG check

Answer 27

During an aft adverse loaded CG, check all useful load Items behind the aft CG limit are loaded and all useful load items in front of the aft CG limit are left empty

Question 28

How does the CG range of a helicopter compare to that of a fixed wing airplane?

Answer 28

Helicopters typically have a much smaller CG range

Question 29

Which has more critical center of gravity range an airplane or a helicopter

Answer 29

Helicopter

Question 30

Before a helicopter is weighed, it must be leveled in what directions

Answer 30

Longitudinally and laterally