747-LH2 INBOARD PROFILE 121 In. R Integral LH2 Tank Passenger Cabin -Cargo Constant Section … The inboard profile shows the fuel volume available in the modified upper lobe. Approximately 4000 cubic feet of LH, could be stored in the wing. The same amount of fuel volume can be obtained by a small increase in upper lobe diameter. This is preferable since it avoids the complexity ot" the wing…