Originally Posted by
overstress
How do you know? Did you put the aircraft on a scale at the holding point?
Let's try again. I give you a load sheet, you have a current ramp weight of 302t and a take off weight of 300t all based on a taxi fuel of 2t. 300t is also your structural MTOW. You start taxi, and uh uh ! Happy days you get to go first in sequence having burned 500kg of fuel. Now 302t-0.5 = 301.5t. You are 1.5t above Your MTOW. You don't need a scale here, You need a 6 years old maths skills.
You work to your Ops Manual. I'll work to mine.
I will
Onboard flight data monitoring.