W-5 Class, Japanese Fast Minesweepers

Photograph of W-5 class minesweeper

Imperial Japanese Navy. Via Wikimedia Commons


Tonnage 625 tons standard displacement
Dimensions 250'2" by 26'6" by 7'6"
76.25m by 8.08m by 2.29m
Maximum speed       21 knots
Complement 91
Armament 2 4.7"/45 dual-purpose guns
1 3"/40 AA gun
1 heavy machine gun
2 depth charge throwers (18 depth charges)
Minesweeping gear
2-shaft triple expansion reciprocating (4000 shp)
3 Kampon boilers
176 tons coal
2000 nautical miles (3700 km) at 14 knots
1944: One 4.7" gun and minesweeping gear removed and replaced with 5 25mm/60 AA guns. Depth charge loadout increased to 36.

The W-5s were completed in 1929 at Uraga. They were essentially enlarged W-1s. Most were later assigned to escort duty.

Units in the Pacific:


Sunk 1944-11-4 by Terrapin off Sumatra


Cam Ranh     

Sunk by Dutch aircraft 1941-12-26 off the northwest coast of Borneo

References (accessed 2012-6-23)

Jentschura, Jung, and Mickel (1977)

Worth (2001)

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