What weight calculation excludes taxi fuel from the ramp weight?

The correct answer is Max take-off weight. This calculation represents the maximum weight at which an aircraft is certified to take off and includes the total weight of the aircraft, including its maximum payload, fuel, and any other necessary components. However, the take-off weight does not account for taxi fuel, which is the fuel consumed while the aircraft is taxiing on the ground before takeoff.

In aviation, the distinction is important because taxi fuel is not a factor in determining whether an aircraft can take off safely, as it is consumed during ground operations. Instead, the focus is on ensuring that the remaining fuel after taxiing is sufficient for the flight, alongside the passengers and cargo the aircraft is carrying. Thus, Max take-off weight excludes taxi fuel, allowing for a proper assessment of the vehicle's capacity for a flight given the necessary fuel reserves.

Other weight measures, like Max ramp weight, are concerned with the aircraft's total weight before takeoff, which includes any fuel consumed during taxi. Similarly, Max zero fuel weight focuses on the weight of the aircraft without any usable fuel while Max landing weight is concerned with the aircraft’s weight upon landing. Each of these measurements is relevant for different operational phases but does not serve the specific purpose of excluding taxi fuel as