The ramp weight, also known as "ramp weight", is the total weight of an aircraft when it is in the taxi position before take-off. This weight includes all components necessary for the flight and is crucial for flight planning and the weight distribution of the aircraft.
Components of the ramp weight
Zero Fuel Weight (ZFW)
The ZFW is the weight of the aircraft without usable fuel, but includes the operational empty weight (OEW) and the payload. This includes passengers, baggage, cargo and all operational items.
Usable fuel
This includes all fuel required for the flight, including:
Cab fuel: The fuel required to taxi the aircraft on the ground before take-off and after landing.
Travel fuel: The fuel, including reserves, required for the actual flight to the destination.
Payload
The payload consists of passengers, baggage and cargo. These variable weights depend on the specific flight mission and the requirements of flight operations.
Crew and operating fluids/equipment
This includes the weight of the crew members and all necessary fluids and equipment required for the safe operation of the aircraft.
Significance of the ramp weight
Flight planning
Ramp weight is a critical parameter for flight planning as it ensures that the aircraft is operated within its structural and operational limits.
Weight distribution
A correct calculation of the ramp weight is crucial for the weight distribution and balance of the aircraft, which in turn influences flight safety and efficiency.
Security
Compliance with the weight limits, including the ramp weight, is crucial for the safety of flight operations. Exceeding these limits can compromise the structural integrity of the aircraft and lead to dangerous situations.
The ramp weight is therefore a comprehensive parameter that takes into account all essential weight components of an aircraft before take-off and ensures that the aircraft can be operated safely and efficiently.
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