Hiyo-class Escort Carrier



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.


Hiyo, date unknownMasaichi Kondo aboard carrier Junyo, Jan 1943Junyo at Sasebo, Japan, crica fall 1945Junyo
See all 13 photographs of Hiyo-class Escort Carrier

Did you enjoy this article or find this article helpful? If so, please consider supporting us on Patreon. Even $1 per month will go a long way! Thank you.

Share this article with your friends:


Stay updated with WW2DB:

 RSS Feeds

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

All visitor submitted comments are opinions of those making the submissions and do not reflect views of WW2DB.

Posting Your Comments on this Topic

Your Name
Your Email
 Your email will not be published
Comment Type
Your Comments
Security Code



1. We hope that visitor conversations at WW2DB will be constructive and thought-provoking. Please refrain from using strong language. HTML tags are not allowed. Your IP address will be tracked even if you remain anonymous. WW2DB site administrators reserve the right to moderate, censor, and/or remove any comment. All comment submissions will become the property of WW2DB.

2. For inquiries about military records for members of the World War II armed forces, please see our FAQ.

Search WW2DB & Partner Sites
More on Hiyo-class Escort Carrier
Ships of this Class:
» Hiyo
» Junyo

Hiyo-class Escort Carrier Photo Gallery
Hiyo, date unknown
See all 13 photographs of Hiyo-class Escort Carrier

Famous WW2 Quote
"I have returned. By the grace of Almighty God, our forces stand again on Philippine soil."

General Douglas MacArthur at Leyte, 17 Oct 1944

Support Us

Please consider supporting us on Patreon. Even $1 a month will go a long way. Thank you!

Or, please support us by purchasing some WW2DB merchandise at TeeSpring, Thank you!