are you sure that they weigh themselves, I'm not. Is it not that the FMC knows the weight of the a/c as set in software and just adds the weight of the fuel and then cargo/baggage is added after manually. Having done the 744 and 330/340 courses there has never been any mention of this. There used to be a c of g system on the classic that never worked but that just knew where the weight was shifting. I stand to be corrected......
[This message has been edited by spannersatcx (edited 29 November 2000).]