id author title date pages extension mime words sentences flesch summary cache txt 762 Whale, George British Airships, Past, Present, and Future .txt text/plain 42515 2134 69 airship, being provided with engines to propel it through the air, and We have seen that as an airship rises the gas contained in the envelope The later sheds built to accommodate the rigid airship are of much with an internal rigid keel and to-day these ships are of considerable that this ship was a rigid airship, although from its construction it to a new envelope of 101,000 cubic feet capacity, the ship took part in original coastal ship and the car slung to the envelope of the ex-army their airship service, and the military ships together with certain feet capacity; for the active-service ships, envelopes of similar shape was selected for this class of airship; in the original ship the distances, a ship of 150,000 cubic feet capacity, with a covered-in car airship of 10,000,000 cubic feet capacity has five times the lift of ./cache/762.txt ./txt/762.txt