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NavSource Online: Service Ship Photo Archive

YR
Floating Workshop (Non Self Propelled)

YR-5 and V-4 (SM-1) are in the background beyond V-6 (SC-2) fitting out at Mare Island Navy Yard, Vallejo, CA., 12 April 1930.
US Navy photo # NH 70676 from the collections of the US Naval Historical Center, courtesy of the Mare Island Naval Shipyard, 1970.
YR-15 in Dry Dock 3 at Boston Navy Yard, South Annex during the moderizaion of Florida (BB-30) between 1925 and 1927
YR-48
Keel Laid, 23 March 1943
Launched, 2 April 1943
Placed in service, 15 January 1944.
A March 1943 photo of the bow section of YR-48 is being moved from the structural shop to dry dock # 4 where the repair barge was constructed at Mare Island. Mare Island Navy Yard photo # 2035-43.
YR-49-1
Keel Laid, 1 August 1943
Launched, 17 August 1943
Placed in service, 15 July 1943.
Forward plan view of YR-49 at Mare Island, 5 July 1944. US Army Corps of Engineering tug and dredge in the background deepening the Mare Island (Napa River) channel.
Mare Island Navy Yard photo # 4209-44.

YR-49-2 Aft plan view of YR-49 at Mare Island, 6 July 1944.
Mare Island Navy Yard photo # 4320-44

YR-49-3 date and location unknown. Submitted by Robert Hurst, Source Hyper War US Navy in WWII
YR-55
Built by Associated Shipbuilding, HI.
Delivered to the US Navy 2 December 1943
Reclassified Floating Dry Dock Workshop (Hull Non Self-propelled) YRDH-1, date unknown
Reclassified Miscellaneous Unclassified IX-528 23 June 1993
Active, in service, Southeast Alaska Acoustic Measurement Facility, Ketchikan, AK.
YR-93 ex YFNB-30
YR-94 ex IX-526

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