About this Unit
YF 451 was a United States Navy covered lighter (YF) assigned to the Naval Base at Keyport, Washington. Built during World War II, YF 451 was part of a class of non-self-propelled barges designed to transport and store munitions, equipment, and supplies within naval installations. Stationed at Keyport, a center for naval torpedo research and testing, YF 451 played a crucial logistical support role by facilitating the movement of ordnance and material between ships and shore facilities. Throughout its service, the unit contributed to the efficient operation of the base, supporting both training and research missions critical to the Navy's success in the Pacific Northwest.
Historical Facts
• Unique Designation: YF-451 is classified as a "Yard Freight" (YF) barge, part of a series of non-self-propelled cargo vessels used by the U.S. Navy for logistics and support tasks.
• Built During WWII: YF-451 was constructed in the early 1940s, during the height of World War II, to help meet the Navy’s growing need for logistical support and material transport.
• Home Port at Keyport, Washington: YF-451 was stationed at the Naval Undersea Warfare Center Division, Keyport, a facility known for its development and testing of torpedoes and undersea systems.
• Support Role: The vessel played a key role in transporting torpedoes, test equipment, and other materials essential for naval research and operations at Keyport.
• Involvement in Cold War Projects: During the Cold War, YF-451 was involved in transporting and supporting classified testing operations related to undersea warfare innovations.
• Distinctive Appearance: Unlike combat ships, YF-451 had a boxy, utilitarian appearance with a large open deck, making it ideal for hauling heavy and bulky equipment.
• Flexible Use: Over its service life, YF-451 was adapted for a variety of support roles, including acting as a floating workshop and storage facility for naval exercises.
• Historic Photos: Archival images of YF-451 at Keyport often show it docked alongside research submarines and torpedo recovery vessels, highlighting its central role in base operations.
• Legacy at Keyport: Although no longer in active service, YF-451 is remembered by Keyport veterans as an essential workhorse that kept critical testing and evaluation missions supplied and running smoothly.
• Preservation Efforts: Some artifacts and logbooks from YF-451 are preserved in the Naval Undersea Museum at Keyport, offering visitors a glimpse into the logistical backbone of the Navy’s undersea research programs.
