(This optional rule only breaks down what that 33,000 cubic meter space holds exactly using the old FASA SCU system.)
CARGO HOLDS SU Cost: 1 SU per 33,000 cubic meters, cargo holds less than 33,000 cubic meters still cost 1 SU Power Cost: Usually none, unless special cargo needing temperature control or treatment
Ships especially freighter and transport deal with cargo. Cargo on regular Starfleet vessels represents spare parts and other needed equipment that must be kept in storage. Typically a ship needs 1 SU worth of cargo space per point of size though this is not a hard and fast rule. When assigning cargo holds remember to consider the ships primary function, Duration of mission and other factors.
A Normal 33,000 cubic meter hold can accommodate 4,444 Standard Cargo Units or SCU’s. Each SCU is 6.75 cubic meters in area and can represent 50 megatons of cargo, 200 bushels or 6,750 liters of liquid. For determining the cost in SU always round fractions upward. i.e. a cargo hold, holding 1,200 SCU is rounded up to 1 SU in cost during construction. As some types of cargo do require special needs for extended voyages such as grain elevators, refrigeration etc. it is suggested in such cases that 1 power per 33,000 cubic meters of cargo space per round be used as determined by the narrator.