Collection Item Summary:
Left to right, Lt. Leigh Wade, Lt. Lowell Smith, and Sgt. Henry Ogden, of the U.S. Army Air Service World Flight, inspect a Liberty 12 aircraft engine, the type used in their Douglas World Cruisers (DWC), while the engine is mounted on a stand inside a hangar; location unknown, circa 1924.
Collection Item Long Description:
- Propulsion systems