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  RO-65 Japanese Submarine
Type L submarine
RO-60-class submarine

988 Tons (surfaced)
1,301 Tons (submerged)
257' 2" x 24' 4" x 13'
6 x 533mm torpedo tubes in the bow with 12 torpedoes
1 x 76.2mm deck gun
1 x 6.5mm MG

Submarine History
Built by Mitsubishi Shipbuilding in Kobe. Laid down November 15, 1924 as a L-gata Sensuikan / Type L submarine later designated a RO-60 class submarine. Launched September 25, 1925 as RO-65. Completed and commissioned June 30, 1926 in the Imperial Japanese Navy (IJN) under the command of Lt Eisho Saito attached to the attached to the Sasebo Naval District. On May 16, 1928 assigned to Lt. Commander Jisaku Uozumi.

Sinking History
On September 28, 1942 sunk by U.S. bombers in Kiska Harbor off Kiska Island. Japanese sources claim RO-65 was accidentally lost while diving to escape an air strike. Officially, removed from the Navy list on August 1, 1943.

The shipwreck of this submarine sunk facing eastward towards the mouth of Kiska Harbor. The side of the hull has structural damage to the pressure hull material from the sail is laying off to the side plus a debris field to the south. The dive planes are in the horizontal position, not pointed downward if conducting a dive when sunk. The propeller was fouled with cable, perhaps from later salvage attempts. The submersible deck gear was in place with the forward torpedo loading hatch is open with a 21" torpedo in place on the port side.

After the sinking, salvage divers or SCUBA diver have opened hatches and attempted to salvage material off the submarine. It is not clear when this salvage was done or by whom either Japanese, Americans or souvenir hunting SCUBA divers.

During September 1989 salvage divers from USS Safeguard (ARS-50) surveyed the submarine.

Other sources state RO-65 was sunk September 26, 1942 possibly confusing with RO-67 damaged that day. Other sources state the cause of loss was because the submarine ran aground. Officially, the U.S. Navy lists the loss as floundered (while submerged) during USAAF air attack.
Combined Fleet - IJN Submarine RO-65: Tabular Record of Movement
Naval History and Heritage Command (NHHC) Japanese Submarine Casualties in World War Two (I and RO Boats)
"RO-65 Foundered (while submerged) during USAAF attack Kiska Harbor"
U.S. Navy at War Final Official Report to the Secretary of the Navy page 56
"RO-65 SUNK 28 September 1942 at Kiska by B-24's"

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Last Updated
July 30, 2022


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