In support of an official event 

The Museum will be closed Sunday, May 25
In addition, the Presidential Gallery will be closed Saturday, May 24

Normal hours will resume on Monday, May 26
 

Salmson Z-9

Note: This item is currently in storage.

The Salmson Z-9 engine, rated at 280 hp, was quite unique. Although it was a radial engine, it was cooled by water. The Z-9 was installed in the Salmson 2A.2 airplane, which arrived on the Front early in 1918. The U.S. Air Service purchased 705 Salmson 2A.2s from France and used them to equip many of its observation squadrons.

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