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

Guided tours of the 4th building, normally scheduled at 3:00 p.m. daily, are canceled through May 28.

Effective immediately, the William E. Boeing Presidential Gallery will have limited guest access due to scheduled event preparations. The only accessible exhibits during this time include: Douglas VC-54 Sacred Cow, Flying the President Exhibit, USAF Established Artifact. We anticipate full gallery access will resume by June 5, 2025.

Liberty L-6

Note: This item is currently in storage.

The six-cylinder water-cooled Liberty, which developed 200-215 hp, was built during World War I by Thomas-Morse Aircraft Corp. and Wright Aeronautical Corp. Since the L-6 was too large for mail airplanes and other types of engines were available for other types of aircraft, requirements for the L-6 were canceled after 52 had been built. In 1921 the L-6 was installed in the Curtiss (only two built) and the Engineering Division TW-1 (only six built).

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