No Carburetor

The famous flights of Macready and Kelly indicated that the body of the airplane, its structure and flying controls are sound, its heart—the power plant—is weak and constantly giving trouble. Navy Department statistics indicate that the Liberty motor must be overhauled after approximately 72 hours of flight at a cost of 300 man-hours and over $600. The Navy has been giving the question of improved engine reliability the most concentrated attention, and, without great modifications in principle, by better detail design and more skillful use...

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