I have had both PSS Airbus and A340 Pro [Not quite that accurate if you ask the guys who fly those planes] for ages now, however there is one little snag I can never quite get around. It's a little section in the MCDU [FMGC if you prefer].
When one opens up the MCDU for the first time, it comes up with the INIT page. There one adds their flight plan [e.g EGLL/KJFK or VHHH/WSSS], flight number, aligns the IRS and enters the cruise altitude. Once that's done, one is required to go to the next page [press the next page button
] and one will see four orange blocks [Compulsory to fill in the orange blocks], they are the zero fuel weight.So one works out [or in my case, guess the number required] the ZFW and then suddenly below it, white bold writing stating "BLOCK" shows up and is required [I believe it's the block fuel I'm not sure].
THE QUESTION
Now my question is, how does one go about working out what numbers to punch in below the bold white writing [BLOCK]?
Captain