Takeoff Mass in aircraft design refers to the total mass of the aircraft, including all passengers, cargo, and fuel, at the moment of takeoff. It’s a crucial parameter used for performance calculations and ensuring safe and efficient takeoffs. Here’s the formula, definition, and SI unit for Takeoff Mass:
Formula for Takeoff Mass (TOM): The formula for calculating takeoff mass is the sum of the aircraft’s empty weight (EOW or OEW), the mass of passengers and cargo (payload), and the mass of fuel on board. Mathematically, it can be expressed as:
- Takeoff Mass (TOM): The total mass of the aircraft, including passengers, cargo, and fuel, at the moment of takeoff, typically measured in kilograms (kg) or pounds (lb).
- Empty Weight (EOW or OEW): The weight of the aircraft without any payload or fuel, typically measured in kilograms (kg) or pounds (lb).
- Payload: The combined weight of passengers, cargo, and any additional items carried on board, typically measured in kilograms (kg) or pounds (lb).
- Fuel: The mass of fuel carried on the aircraft, typically measured in kilograms (kg) or pounds (lb).