Hiyo-class Escort Carrier

Hiyo-class Escort Carrier

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This article refers to the entire Hiyo-class; it is not about an individual vessel.

ww2dbaseCarriers Hiyo and Junyo were sister ships originally building as ocean liners. They were taken over by the Japanese Navy and were completed as carriers. They were not particularly useful vessels because their machinery was not up to the grade; they never made better than 23 knots in wartime service, meaning that they really could not keep up with other warships.

Last Major Revision: Jan 2009

Hiyo-class Escort Carrier Interactive Map

Hiyo-class Escort Carrier Operational Timeline

3 May 1942	Junyo was commissioned into service.
31 Jul 1942	Hiyo was commissioned into service.
22 Mar 1943	Junyo and Hiyo departed Saeki, Hiroshima, Japan with Yugure, Hatsuzuki, Suzutsuki, and Kagero in escort.
27 Mar 1943	Junyo and Hiyo arrived at Truk, Caroline Islands with Yugure, Hatsuzuki, Suzutsuki, and Kagero in escort.
10 Jun 1943	Hiyo, Yugure, and Ariake deparated Yokosuka, Japan at 1400 hours. About 17 miles off Miyake Island at 1852 hours, USS Trigger fired six torpedoes at Hiyo, scoring two hits. In the darkness, at 1937 hours, Hiyo opened fire on Yugure while Yugure swept for the American submarine, killing two and wounding five. Yugure's No. 3 turret's shield was also damaged. Nevertheless, Yugure and Ariake would remain on anti-submarine patrols around Hiyo through the night.
11 Jun 1943	Hiyo, damaged by torpedo hits from USS Trigger on the previous day, arrived at Yokosuka, Japan.
11 Jun 1943	Isuzu, Ariake, and Yugure escorted Hiyo, damaged by USS Trigger on the previous day, toward Yokosuka, Japan.
12 Jun 1943	Isuzu, Ariake, Yugure, and Hiyo arrived at Yokosuka, Japan at 1030 hours. Torpedo-damaged Hiyo entered drydocks at Yokosuka Naval Arsenal for repairs at 1053 hours; her bottom scraped the bottom of the drydock while moving in.
30 Nov 1945	Junyo was decommissioned from service.

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Visitor Submitted Comments

1. Anonymous says:
26 Jan 2011 06:20:10 PM

my dad was the one who released the torpedo that struck and ultimatly sank her.Then was shot down and spent the night in the ocean

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Hiyo-class Escort Carrier