Originally Posted by
skiesfull
It is my guess that range for the freighter is not as important as trim and the possible restrictive effect that a full HST may have on loading.
Note that the balance effect of a full HST on a pax a/c is almost zero.
On the other hand, a 747F with high fuel loads (+ 120T) needs to be loaded almost at the aft ZFW limit to allow fwd TOW limit to be within trim limits.
Tipping might be a problem during the turnround of a 747F with fuel in the HST (if one installed)