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Aircrew Fundamentals > BFEBLK3 > Flashcards

BFEBLK3 Flashcards

1
Q

____ and ____ affects the efficiency and _____ of the aircraft

A

Weight and balance / safety

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2
Q

The balance point of an aircraft can be determined by locating its ______

A

Center of Gravity (CG)

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3
Q

_____ is an imaginary point where the aircraft would balance if freely suspended in the air

A

Center of Gravity (CG)

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4
Q

The _____ specify the forward or aft CG locations within which an aircraft can safely operate

A

CG limits

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5
Q

CG and CG limits are usually specified in ____ from the _____ of the aircraft

A

inches / RDL

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6
Q

_____ is the horizontal distance inches from the RDL to the CG for any object on the aircraft

A

Arm

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7
Q

____ is the weight of an item in pounds multiplied by the arm in inches

A

Moment

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8
Q

_____ is the torque the aircraft weight would produce relative to the RDL; measured in inch/pounds

A

Moment

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9
Q

_____ is a unit that has magnitude and direction.

A

Weight

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10
Q

___ is the sum of all moments making up the basic weight of the aircraft

A

Basic Moment

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11
Q

All aircraft are balanced within the limits established by the _______

A

Manufacturer

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12
Q

The CG limits specify the ____ and _____ center of gravity locations within which an aircraft can safely operate

A

forward and aft

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13
Q

____ is the weight of the aircraft before adding crew, fuel, and other variables of load

A

Basic Weight

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14
Q

____ is a vertical plane, parallel to the RDL and identified by a number equal to its distance from the RDL

A

Fuselage Station

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15
Q

____ is the average arm or CG of a compartment, fuel tank, piece of equipment, cargo, etc

A

Centroid

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16
Q

____ is the distance in inches from the RDL to the CG of the aircraft

A

Aircraft Center of Gravity Arm (CGA)

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17
Q

What are some of the effects of improper loading

A
  • Requires longer runway for lift
  • May not climb fast enough to clear obstacles
  • Reduces fuel efficiency
  • Stalls may occur
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18
Q

What are some of the effects of improper forward loading

A
  • Nose heavy
  • Greater deflection of the elevator
  • Increased drag and decreased speed
19
Q

What are some of the effects of improper aft loading

A
  • less stable
  • more difficult to control in all phases of flight
  • pitch up easily on takeoff
  • may be impossible to recover from stall
20
Q

___ increases as the CG moves forward and ____ as CG moves rearward

A

Stability / decreases

21
Q

What are some examples of neglible and ignored load shifts during flight

A
  • fuel consumption

- Raising/lowering landing gear

22
Q

____ is a principle that must be thoroughly understood before a discussion of aircraft weight distribution

A

Balance

23
Q

Who designates the aircraft’s MAC

A

Manufacturer

24
Q

____ outlines and defines the requirements, procedures, and responsibilities for weight and balance control of USAF aircraft

A

T.O. 1-1B-50

25
Q

_____ is used to provide a permanent continuous record of the personnel responsible for maintaining the aircraft weight and balance handbooks

A

Record of Weight and Balance Personnel:

DD Form 365

26
Q

___ is a list of operating equipment that is or may be installed on the aircraft

A

Basic Weight Checklist Record:

DD Form 365-1 (Chart A)

27
Q

____ used to record data obtained from the actual weighing of the aircraft

A

Aircraft Weighing Chart:

DD Form 365-2 (Form B)

28
Q

____ is a continuous history of the basic weight, basic moment, and balance computer index resulting from structural and equipment changes while the aircraft is in service

A

Basic Weight and Balance Record:

DD Form 365-3 (Chart C)

29
Q

____ helps you solve loading problems for the applicable aircraft

A

Aircraft Loading Table:

Chart E

30
Q

____ is a summary of the actual weight and disposition of the load in an aircraft

A

Weight and Balance Clearance:

DD Form 365-4 (Form F)

31
Q

2 versions of the Form-F are provided: _____ and ____

A
  • Stays with the aircraft for the duration of the mission

- Stays with departing airfield

32
Q

___ is the sum of the moments of all items making up the basic weight of the aircraft and recorded on the 365-C, Chart C.

A

Basic Moment

33
Q

____ allows the flight engineer to check the weight limits before takeoff

A

Weight and balance control system

34
Q

One of the most important responsibilities of the flight engineer is to ensure the aircraft ___ meets the weight and balance guidelines

A

Load

35
Q

The balance point of an aircraft found by dividing the total moment by the total weight of the aircraft is _____

A

Aircraft CGA or Average arm

36
Q

____ is the aircraft’s ability to resist any force which may cause the nose to pitch up, returning to the original angle of attack when the force is removed

A

Longitudinal Stability

37
Q

_____ is the lift produced by the wing, concentrated at a point approximately 1/3 aft of the leading edge of the MAC

A

Center of lift

38
Q

Aircraft manufacturers measure the width of a wing in several places, adding those measurements and dividing by the numbers measurements taken to get the ___

A

Mean Aerodynamic Chord (MAC)

39
Q

T/F The center of gravity of an aircraft may slightly exceed either the forward or aft CG limit

A

False; center of gravity should never exceed the CG limit

40
Q

____ is the measurement of the distance from the RDL to the forward edge of the MAC

A

Leading Edge of MAC (LEMAC)

41
Q

Basic aircraft weight and the moment around located where ___

A

Chart C

42
Q

Total weight and moments of references 1-8 is called the ____

A

Operating Weight

43
Q

Operating weight and takeoff fuel are ____

A

Total aircraft weight

44
Q

___ is the “Not To Be Exceeded” weight of the aircraft

A

Allowable gross weight

Aircrew Fundamentals (10 decks)

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