Hello, I noticed that the LM of my A330 Wilco, there's a function (?) Should calculate, takeoff trim value. I just can not understand how it works. The manual does not even mention it gets. As you can see from the screen there is a written "TRIM" but nothing more. The field value is that the fuel of the second tank .

And then the trim?

Moreover, the situation provides a ZFW of 242,353 pounds, it seems appropriate then to set the trim off.

You, how to calculate it?

Thanks

It is the TRIM TANK fuel quantity. Please read:

 

http://airbusboeing.blogspot.com/2007/09/a340-fuel-system-distribution-briefing.html