English: airship LZ 127 "Graf Zeppelin", drawing after model, with schematic internal structure and gas cells slightly opaque. Key: ACP = Auxiliary control post red = AC = axial corridor running from main ring -2 to the front mooring hub blue = LC = lower corridor running from main ring 20 to ring 211 ending at ladder to axial corridor orange = WC = crew's toilet beige = CQ = crew's quarters with tables, chairs and berths beige = B = berths or cargo space blue stripes = A = ventilation shaft green stripes = CS = climbing shaft brown stripes GE = exhaust gas shaft brown box = O = oil tanks yellow box = P = petrol tanks light blue box = W = water tank pink cell = H2 = hydrogen gas cell magenta cell = BG = Blaugas cell OP = Observation post on top of hull