Midget Sub base

Discussions on all aspects of the Japanese Empire, from the capture of Taiwan until the end of the Second World War.
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fontessa
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Re: Midget Sub base

Post by fontessa » 06 Dec 2022 02:12

ShindenKai wrote:
05 Dec 2022 22:39
So, the "cut-away" Kairyu was actually used for training purposes during the war?
Yes. I said that she was used in Yokosuka Assault Unit, but there is anothr story that she was used in Naval Submarine School, and this seems to be correct.

ROLAND1369 wrote:
06 Dec 2022 00:02
How did this cutaway survive the postwar allied demilitarization of Japan?
The "cut-way" seems to have caught the interest of the U.S. military and was transported to the U.S. mainland without being destroyed. After being exhibited in the US mainland, she was returned to Japan.
海龍 米展示.jpg

fontessa
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ShindenKai
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Re: Midget Sub base

Post by ShindenKai » 06 Dec 2022 09:29

fontessa wrote:
06 Dec 2022 02:12
ShindenKai wrote:
05 Dec 2022 22:39
So, the "cut-away" Kairyu was actually used for training purposes during the war?
Yes. I said that she was used in Yokosuka Assault Unit, but there is anothr story that she was used in Naval Submarine School, and this seems to be correct.

ROLAND1369 wrote:
06 Dec 2022 00:02
How did this cutaway survive the postwar allied demilitarization of Japan?
The "cut-way" seems to have caught the interest of the U.S. military and was transported to the U.S. mainland without being destroyed. After being exhibited in the US mainland, she was returned to Japan.
fontessa
That's a fascinating bit of history, thank you Fontessa.


Makes me curious about this "cut-away" Kaiten Type 1

https://forum.rc-sub.com/forum/photos-o ... ven-shaker

https://products.kitsapsun.com/archive/ ... _subs.html

https://navalunderseamuseum.org/

I would imagine the red painted exterior to have been applied by the U.S. after capture but I'm not so sure now, another training aide used during the war? I took many pictures of it when I visited the Musuem listed many yrs ago, alas those were lost when my cell phone that had the images was damaged.

I plan to make another trip over there if they still have it...(not currently listed as exhibit).

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fontessa
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Re: Midget Sub base

Post by fontessa » 06 Dec 2022 11:13

ShindenKai wrote:
06 Dec 2022 09:29
I would imagine the red painted exterior to have been applied by the U.S. after capture but I'm not so sure now, another training aide used during the war?
Kaiten for Training Use
The white color was visible from a distance even while navigating on water.
訓練用回天.jpg

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ShindenKai
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Re: Midget Sub base

Post by ShindenKai » 06 Dec 2022 18:50

3D model of 3D scanned Kaiten Type 1
https://collections.arck-project.org/vi ... 0&limit=10

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Re: Midget Sub base

Post by ShindenKai » 07 Dec 2022 09:36

Kairyu with large camo painted sail and does not appear to have 2 periscopes.
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Re: Midget Sub base

Post by ShindenKai » 07 Dec 2022 19:57

More proof that the "cut-away" Kairyu was in-fact captured that way at Yokosuka. Also interested in the item astern of the Kairyu, which appears to have diving fore-planes...

https://ww2db.com/image.php?image_id=3422
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ShindenKai
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Re: Midget Sub base

Post by ShindenKai » 08 Dec 2022 02:18

UFDO (Unidentified Floating/Diving Object, LOL) directly astern the Kairyu in previous post. Looks too small to be a Kaiten...even has some sort of placard, most likely describing what it is, staked into the ground next to it. Appears to possibly have low-mounted diving fore-planes...
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fontessa
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Re: Midget Sub base

Post by fontessa » 12 Dec 2022 20:45

ShindenKai wrote:
08 Dec 2022 02:18
UFDO (Unidentified Floating/Diving Object, LOL) directly astern the Kairyu in the previous post. Looks too small to be a Kaiten...even has some sort of placard, most likely describing what it is, staked into the ground next to it. Appears to possibly have low-mounted diving fore-planes...
I found a photo said to have been taken around 1954. It looks like it was taken in the same place as your photo. However, the building in the background is a two-story building. OFDO seems to be about half the length and diameter of Kairyu. Therefore, it is judged to be a torpedo in this photo.
But IJN had a few midget subs this small. I found two and they don't look alike.
(1) 回天十型 Kaitem Mod10 (Kength was 9m)
(2) 震海 Shinkai
Both ended in the prototype stage.

I also found the chart of KairI Training Boat. There were early type and late type, and the distinguishing point is the presence or absence of a Type 4 compass.

海龍 横須賀 1954 A.jpg


回天十型 Kaiten Type10
回天十型.jpg


震海 Shinkai
震海.jpg


海龍訓練艇 KairI Training Boat
海龍 訓練艇.jpg

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Takao
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Re: Midget Sub base

Post by Takao » 13 Dec 2022 22:17

fontessa wrote:
12 Dec 2022 20:45
ShindenKai wrote:
08 Dec 2022 02:18
UFDO (Unidentified Floating/Diving Object, LOL) directly astern the Kairyu in the previous post. Looks too small to be a Kaiten...even has some sort of placard, most likely describing what it is, staked into the ground next to it. Appears to possibly have low-mounted diving fore-planes...
I found a photo said to have been taken around 1954. It looks like it was taken in the same place as your photo. However, the building in the background is a two-story building. OFDO seems to be about half the length and diameter of Kairyu. Therefore, it is judged to be a torpedo in this photo.
But IJN had a few midget subs this small. I found two and they don't look alike.
(1) 回天十型 Kaitem Mod10 (Kength was 9m)
(2) 震海 Shinkai
Both ended in the prototype stage.

I also found the chart of KairI Training Boat. There were early type and late type, and the distinguishing point is the presence or absence of a Type 4 compass.


海龍 横須賀 1954 A.jpg



回天十型 Kaiten Type10
回天十型.jpg



震海 Shinkai
震海.jpg



海龍訓練艇 KairI Training Boat
海龍 訓練艇.jpg


fontessa
A second story was added sometime between 1948/49 and 1954.

Image
From 1948/49.

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fontessa
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Re: Midget Sub base

Post by fontessa » 13 Dec 2022 23:33

Takao wrote:
13 Dec 2022 22:17
fontessa wrote:
12 Dec 2022 20:45
ShindenKai wrote:
08 Dec 2022 02:18
UFDO (Unidentified Floating/Diving Object, LOL) directly astern the Kairyu in the previous post. Looks too small to be a Kaiten...even has some sort of placard, most likely describing what it is, staked into the ground next to it. Appears to possibly have low-mounted diving fore-planes...
I found a photo said to have been taken around 1954. It looks like it was taken in the same place as your photo. However, the building in the background is a two-story building. OFDO seems to be about half the length and diameter of Kairyu. Therefore, it is judged to be a torpedo in this photo.
But IJN had a few midget subs this small. I found two and they don't look alike.
(1) 回天十型 Kaitem Mod10 (Kength was 9m)
(2) 震海 Shinkai
Both ended in the prototype stage.

I also found the chart of KairI Training Boat. There were early type and late type, and the distinguishing point is the presence or absence of a Type 4 compass.


海龍 横須賀 1954 A.jpg



回天十型 Kaiten Type10
回天十型.jpg



震海 Shinkai
震海.jpg



海龍訓練艇 KairI Training Boat
海龍 訓練艇.jpg


fontessa
A second story was added sometime between 1948/49 and 1954.
Thanks. The photo was taken on 11 May 1951, so second story was added between 1951 and 1954.
海龍 横須賀 May 1951.jpg

fontessa
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