Definitions Flashcards
Basic Empty Mass
- The empty clean aircraft
- Any unusable fuel and other unusable liquids (hydraulic/lubrication fluids)
- Safety equipment
- Supplementary electronic equipment
Variable Load
- Crew and their baggage
- Catering and other removable passenger service equipment
- Food&Beverages
- Potable (drinking) water
- Lavatory chemicals
- Any special operating equipment
Traffic load
Mass of passengers, baggage, cargo and any non-revenue load, which is being transported to support the company’s operations
Fuel
- Usable fuel in tanks at any particular point
- On the ramp, the usable fuel is the ramp fuel or block fuel
1 USG to liters
3.785 litres
1 IMP Gallon to USG
1.2 USG
1 IMP Gallon to litres
4.546 litres
1 meter to feet
3.28 feet
1 kg to lb
2.205 lb
1 ft to in
12 in
1 nM to metres
1852m
1 nM to feet
6076 feet
1 meter to feet
3.28 ft
1 kt to m/s
0.5144 m/s
1 m/s to kts
1.944 kts
Reserve fuel includes:
- Contingency fuel
- Alternate fuel
- Final reserve fuel
(Additional fuel)
Underload
Difference between max traffic load and actual traffic load.
Max traffic laod that could be added without exceeding any performance or structural limitations
3 Method of carrying cargo
- In containers
- On pallets
- Loose (bulk cargo restrained by nets)
Name 2 unit load devices
Pallets / Containers
How is moment calculated?
Mass x distance from datum
What is a Mean Aerodynamic Chord (MAC)?
MAC is the chord of an imaginary equivalent rectangular wing with the same pitching characteristics.
When the undercarriage nose wheel retracts, which way does the CG go?
Forwards
What is the equation for moving mass on an aircraft?
What is the equation for moving mass on an aircraft?
How often does an aircraft need to be reweighed? (individual and fleet)
Individual: 4 yrs
Fleet: 9 yrs
Which DOM and CG do they use for fleet?
The average of them all.
What kind of building is an aircraft weighed in?
Closed hangar with air conditioning off.
Minimum number of load cells used to weigh an aircraft?
3
How much can an aircraft be modified before it needs to be reweighed and have it’s CG position re-established?
If the modifications of the Dry Operating Mass lead to a change of more than half a percent of the Maximum Landing
Mass, then an aircraft needs to be reweighed.
3 Categories of Passengers
- Adults (M&F, aged 12+)
- Children (M&F, 2-12 years old)
- Infants (less than 2 years old)
