Four PN-11s were designed and built by the Naval Aircraft Factory as part of the continuing development of patrol planes in the post-World War I era.
Categories: Aircraft
 
 
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.

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