"Jim Weir" wrote in message ...
That makes absolutely no sense. If the ramp weight is a particular number, how
can the max takeoff weight be less? Do you plan on doing a midair refueling to
get up to max gross after departure?

Many of the Cessna's give you some extra for taxiing out and doing the runup.
The 152 for example, says you can go 5 lbs over the gross weight for taxi.