weight and balance

Question 1

Reference Datum

Answer 1

An imaginary vertical plane or line from which all measurements of arm are taken

Question 2

Center of Gravity

Answer 2

The point at which an airplane would balance if it were suspended at that point

Question 3

Arm

Answer 3

The horizontal distance in inches from the reference datum line to the CG of an item

Question 4

Basic Empty Weight

Answer 4

The weight of the standard airplane, optional equipment, unusable fuel, and all operating fluids

Question 5

CG limits

Answer 5

the specified forward and aft points within which the CG must be located during the flight

Question 6

Maximum zero fuel weight

Answer 6

Maximum weight exclusive of fuel

Question 7

Moment

Answer 7

The product of the weight of an item multiplied by its arm and expressed in pound-inches

Question 8

Moment Index

Answer 8

A moment divided by a constant such as 100, 1000, or 10000

Question 9

Payload

Answer 9

The weight of the occupants, cargo and baggage

Question 10

Standard weights per gallon

Answer 10

gas-6
jet fuel-6.8
oil-7.5
water-8.35

Question 11

station

Answer 11

A location in the aircraft that is identified by a number designating its distance in inches from the datum

Question 12

Unusable fuel

Answer 12

The fuel in the tanks that cannot be safely used in flight or drained on the ground

Question 13

Usable fuel

Answer 13

the fuel that can be used in flight