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 R-600

Note: This item is currently in storage.

The Curtiss R-600 "Challenger" air-cooled engine, rated at 180 hp, was used in experimental versions of the PT-5 and PT-11 trainers during the 1929-1931 period. Although the R-600 was installed in only two military airplanes, it is historically significant because it was the Air Corps' first twin-row radial engine.

This engine is on loan by the Curtiss-Wright Corp., Woodbridge, N.J.

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