Word: ballasted
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...observer is struck by four broad stripes of horizontal aluminum piping which follow the skin of the envelope from above each propeller, well up toward the top on each side. These are the condensers which recover water from the gasoline burned by the engines, and return it as ballast. Theoretically, 135 lb. of water may be recovered from every 100 lb. of gasoline (taking additional moisture from the air). In practice, the Akron's engineers expect to get back at least enough to compensate for the lightened fuel load...
...stern settle until she rested evenly upon her waterproofed gondolas. An umbrella-like sea-anchor was thrown out. Two collapsible rubber boats were launched. After several minutes maneuvers the equipment was taken aboard again and the Graf taxied a mile or so along the water. Then, dropping water ballast, she arose easily, sailed on to her hangar...
...dirigible of modern size. But the early Zeppelins were constructed for this very purpose, were built and housed in floating hangars on Lake Constance. In those days the anchor tanks were not lowered by cable, but gas was valved until the cars themselves touched the surface. Enough water ballast would then be admitted to tanks in the cars (which were seaworthy) to counteract the lifting power.* Thus balanced, the Zeppelins maneuvered easily as water ships by their own propellers and rudders...
...little flags announced the course: triangular, 10 mi. to windward, then 10 mi. southeast-by-east, then back to the starting point. Skipper Vanderbilt crossed the line neatly as the starting gun boomed, stepped out in front and to windward of Shamrock V, from which a ton of lead ballast had been removed. Strategically, Enterprise kept her advantage, tacking with Shamrock V, keeping her rival out of the wind and at a disadvantage as a hawk follows a pigeon. Unable to shake off the defender, outraced, outmaneuvred, Shamrock V trailed nearly 6 min. behind at the first marker...
Meanwhile in the Belgica Capt. Ernest de Muyter (fourtimes winner) with Leon Coeckelbaerg fought lightning, snow and loss of altitude. All ballast gone, Coeckelbaerg slid down the drag rope into a tree to lighten the load, but the bag settled at Adams, Mass., a 435 mi. mark. For the co-pilot's heroism, disqualification was threatened...