In support of an official event 

The Museum will be closed Sunday, May 25
In addition, the Fourth Hangar will be closed Saturday, May 24

Access to the Presidential Gallery will be limited from May 15 to June 5
 

Curtiss V2-3

In 1916 and 1917 Curtiss produced R-3 and R-4 airplanes for the U.S. Army Signal Corps, some of which the 1st Aero Squadron used during the Mexican Punitive Expedition. The Curtiss V2-3 engine, rated at 200 hp, powered both those airplanes; however, it had a poor power to weight ratio -- almost four pounds for every 1 hp -- which hurt aircraft performance. By comparison, the World War I Liberty engine had a ratio of two pounds weight per horsepower.

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