American-built HS flying boats operated out of NAS Moutchic, one of the principal US naval air training bases in France during World War 1.
Categories: 100 Years of Naval Aviation
 
 
Thank you to the Mario Family Foundation for enabling the digitization of the U.S. Naval Institute’s Photo Archive. The physical photos in the Photo Archive are stored in the Mildred M. Mario Photo Archive Room located at the U.S. Naval Institute’s Headquarters in Annapolis, MD.

©2025 U.S. NAVAL INSTITUTE