What's a realistic time to board per passenger and to load fuel per gallon?

What's a realistic time to board per passenger and to load fuel per gallon?

Really depends. For example, if using only one aerobridge, boarding will be significantly longer than boarding via 2 (say for example on a 747, SYD airport sometimes only has bays available with one aerobridge. The ground handler/airline will usually choose to start boarding earlier than if two aerobridges were operational).

The default atm is 15sec per pax I think. maybe increase it to 2mins/pax. if FS2crew on a 737 takes 30 mins from cold and dark.