why is this ?

[the_nick]

I was looking in the virtual airlines demo and I saw this
Company: StanleyAirServices Flight Id: SAS223 Flight Date: 2006-03-26 Pilot: Jo%o Angerino

" Take-Off fuel: 100 kg "
" Landing Fuel: 143 kg "

how can this be ?
I didn't knew you could refuel in the air with fs passengers

[Dutch64]

Most likely he "met" a fs fuel station somewhere on one of the airports...