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Less spectacular but perhaps more useful will be the Shenandoah's future duties. The Naval collier Patoka will be equipped as an airship tender, carrying tanks for helium and gasoline, with a special mooring mast to cost $100,000. Supported by this floating base, the dirigible will be a most useful scout for the Atlantic Fleet, and this Summer joint maneuvers between warships and dirigible will be carried out for the first time in American Naval operations.
* Since 1920 all altimeter readings have been calibrated.