OTHER DEFINITIONS AND AIRCRAFT WEIGHT CALCULATION FORMULA
Other definitions:
Total fuel/ Block fuel/ Ramp fuel:
The total amount of fuel onboard an aircraft before departure or the fuel quantity on an aircraft at the ramp.
Taxi fuel:
The amount of fuel required to start engines and taxi from the ramp or gate to the beginning of the take off runway at the departure airport. Each airlines specifies the standard taxi fuel for each type of aircraft applied to all stations.
Example:
Standard taxi fuel for Vietnam Airlines aircraft is as follows:
ATR-72 : 50 kg
Fokker-70 : 200 kg
Airbus A320/A321 : 200 kg
Airbus A330 : 300 kg
Boeing B777 : 400 kg
Take-off fuel - TOF:
Take-off fuel or Loadsheet fuel is the total amount of fuel on board an aircraft at the commencement of its take off down a runway. To calculate the take-off fuel of an aircraft, subtract the taxi fuel from the total fuel.
Trip fuel - TIF:
The amount of fuel required from the departure airport to the destination airport. This is also called bum-off fuel.
Operating Weight - OW:
The Dry Operating weight of the aircraft plus the Takeoff fuel.
Dead load:
The Weight of baggage, cargo, mail and Unit Load Device (ULD).
Actual Traffic Load
The actual weight of passenger plus dead load.
Allowed Traffic Load
The net carrying capacity for passenger, cargo, baggage, post mail, ULDs of an aircraft in pound and kilogram. The capacity depends on aircraft type, flight route (take-off fuel, trip fuel, crews and catering/pantry), runway restrictions (length, slope, altitude and obstacles) and weather (temperature, wind speed and direction).
Under Load Before LMC
Allowed traffic load subtracts actual traffic load equal under load before last minute change.
This is the general formula for aircraft weight calculation. This is commonly applied in airlines all over the world. The Load sheet used for aircraft weight calculation may vary between airlines but based on this formula.
Total fuel/ Block fuel/ Ramp fuel:
The total amount of fuel onboard an aircraft before departure or the fuel quantity on an aircraft at the ramp.
Taxi fuel:
The amount of fuel required to start engines and taxi from the ramp or gate to the beginning of the take off runway at the departure airport. Each airlines specifies the standard taxi fuel for each type of aircraft applied to all stations.
Example:
Standard taxi fuel for Vietnam Airlines aircraft is as follows:
ATR-72 : 50 kg
Fokker-70 : 200 kg
Airbus A320/A321 : 200 kg
Airbus A330 : 300 kg
Boeing B777 : 400 kg
Take-off fuel - TOF:
Take-off fuel or Loadsheet fuel is the total amount of fuel on board an aircraft at the commencement of its take off down a runway. To calculate the take-off fuel of an aircraft, subtract the taxi fuel from the total fuel.
TOF = Total fuel – Taxi fuel
Trip fuel - TIF:
The amount of fuel required from the departure airport to the destination airport. This is also called bum-off fuel.
Operating Weight - OW:
The Dry Operating weight of the aircraft plus the Takeoff fuel.
Dead load:
The Weight of baggage, cargo, mail and Unit Load Device (ULD).
Actual Traffic Load
The actual weight of passenger plus dead load.
Allowed Traffic Load
The net carrying capacity for passenger, cargo, baggage, post mail, ULDs of an aircraft in pound and kilogram. The capacity depends on aircraft type, flight route (take-off fuel, trip fuel, crews and catering/pantry), runway restrictions (length, slope, altitude and obstacles) and weather (temperature, wind speed and direction).
Under Load Before LMC
Allowed traffic load subtracts actual traffic load equal under load before last minute change.
AIRCRAFT WEIGHT CALCULATION FORMULA
BASIC WEIGHT
+
CREW & CREW BAGGAGE
+
PANTRY/CATERING
+
FLIGHT SPARES
=
DRY OPERATING WEIGHT
+
TAKE-OFF FUEL
=
OPERATING WEIGHT
+
TRAFFIC LOAD
=
TAKE-OFF WEIGHT
TAKE-OFF FUEL TRIP FUEL
= =
ZERO FUEL WEIGHT LANDING WEIGHT
This is the general formula for aircraft weight calculation. This is commonly applied in airlines all over the world. The Load sheet used for aircraft weight calculation may vary between airlines but based on this formula.
OTHER DEFINITIONS AND AIRCRAFT WEIGHT CALCULATION FORMULA
Reviewed by Aviation Lesson
on
10:07 AM
Rating:
Reviewed by Aviation Lesson
on
10:07 AM
Rating:
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