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There Is an Optimum Landing Weight that Allows for Maximum Cargo Delivery

• This optimum landing weight, defined as the optimum cargo weight per sortie plus the ramp weight at the point of debarkation, is not necessarily the maximum aircraft landing weight.
• The optimum cargo weight is constant and independent of both aircraft ramp weight (landing weight minus cargo weight) and the California Bearing Ratio (CBR) of the field (which measures the ability the soil to resist compressive loads).
• The optimum cargo weight is independent of the return fuel load as well as the field CBR.
• By landing with a less-than-maximum payload, it is possible that more total cargo could be delivered.

There Is Also a Maximum Landing Weight at which a Given Cargo Requirement Can Be Met

• This maximum landing weight minimizes the number of missions that need to be flown while not exceeding the limits of the soft field.