Been passed in many places quite unintelligible to me.

REMOVABLE MACHINED ALUMINUM SKIN-STRINGER PANELS * WELDED CONSTRUCTION * RIVETED SKIN/STRINGER/FRAME STRUCTURE UPPER WINDOW FRAMES HAT SECTION STIFFENED SKINS MACHINED WINDOW PANELS NOSE LANDING GEAR PAYLOAD BAY DOORS CREW CABIN p FORWARD FUSELAGE CREW CABIN 71.5 cubic meters (133 cubic feet), assuming two suited crewmembers are sleeping simultaneously, at least ten times lighter.