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 Author  Topic: 14 meter Japanese Daihutsu barge
Lew Zee

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Lew Zee   Send Email To Lew Zee Posted on: May 17, 2019 - 11:03pm
Has anyone seen a decent set of plans for the Japanese Daihutsu barge? I have downloaded a number of drawings but have yet to find one with sufficient hull line cross sections.



The catamaran style bow is hard to define. I think this would make a good target for our RC PT boats.

Lew

Lew Zee

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Drew Cook

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Drew Cook  Posted on: May 18, 2019 - 6:29am
I remember when I told my Dad (of age during the war, but to his regret 4-F due to a heart murmur) years ago that the PT boats in the Pacific were used as gunboats against Japanese troop barges and had very little actual successes torpedoing capital ships, he was very surprised.

I think he was under the impression --as I guess many on the home front were, probably influenced by the written/published-during- the-war book "They Were Expendable" and newspaper/radio accounts -- the PTs were sinking a lot of Japanese shipping with their torpedoes.

Great, large photo and schematic of that Daihutsu barge, Lew. Thanks for posting.


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  TED WALTHER

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of TED WALTHER   Send Email To TED WALTHER Posted on: May 19, 2019 - 3:26pm
Lew;
Roy Forbes built one a few years ago to go with his R/C PT.

https://www.youtube.com/channel/UCe03UhdWbFriOUNJwsccNwQ

Take care,
TED


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Lew Zee

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Lew Zee   Send Email To Lew Zee Posted on: May 19, 2019 - 7:04pm
Thanks Ted... I remembered seeing those videos. They had the smaller Japanese barge. He is lucky to have a scenic area to make the videos.
Lew

Lew Zee

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Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: May 20, 2019 - 3:54am
That is a really curious bow design, maybe it helped stabilize the boat when beached and unloading? Another guess is that the water line markings were added by the Americans since they aren't in Japanese and appear to be in feet?



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Lew Zee

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Lew Zee   Send Email To Lew Zee Posted on: May 20, 2019 - 6:16am
Duplicate deleted.

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Lew Zee

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Lew Zee   Send Email To Lew Zee Posted on: May 20, 2019 - 6:22am
I read it was more stable cutting through the water but the downside was the dual bows took away from the forward deck area and was up and down for troop movement.
Here is an interesting photo:

Lew

Lew Zee

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  Jerry Gilmartin

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jerry Gilmartin   Send Email To Jerry Gilmartin Posted on: May 20, 2019 - 11:30am
I was looking at this and always wondered why it is called a "Daihatsu" Barge. I thought it may mean something like 2 hulls or catamaran hull or something. It turns out Daihatsu is simply the name of the major manufacturer, like Toyota or Nissan. These barges were evidently designed and built by the Daihatsu company during the war. Like we call our landing barges Higgins boats after the name of the factory that built them, the Japanese did the same thing. Weird huh?

Jerry Gilmartin
PT658 Crewman
Portland OR

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Lew Zee

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Lew Zee   Send Email To Lew Zee Posted on: May 20, 2019 - 9:12pm
In continuing to locate decent drawings for the Daihatsu 14 meter landing craft ("barge") I was able to find an on line book in JSTOR. Seems that 85% of the Japanese landing craft were of this type so it is likely this is what our PT guys saw a lot of.

This was called the "Dai Hatsu type".

It was made of welded steel with a wood deck on the flat metal frame tops. Could carry up to 120 troops, a light tank (8 tons), two trucks, or 10 tons. The front hatch/ramp was double hinged. There were different arrangements as well. One carried a 30cm (11.8-inch) howitzer, a torpedo carrier, and a two torpedo carrier which were held on the sides with rope and were hand cut loose.

There was another "Toku Dai Hatsu" barge which was about 3 meters longer and could carry one medium tanks or two light tanks. The design was similar of the Dai Hatsu.

I did read on Wiki that the dual bow was developed to overcome the "suction" when withdrawing from the beach. This makes sense as when I was transported on board LCM-5's back in the 1960's they had they problem pulling off the beaches, especially after loading. Bigger Landing craft have anchors they drop off-shore so they can also winch themselves back out.

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Stearman

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Stearman  Posted on: May 21, 2019 - 8:00pm
I just found out that the duel bow was an attempt to make it stay in an upright position when beached!


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