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Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 12:05 pm
by OPilot
It looks like the loss of one of these SST's yields 22 victory points. Am I looking at that correctly? That seems high for a small 273 ton displacement ship. It doesn't seem worthwhile to expose it to attack because it can only transport 40 tons of supplies. Am I missing something?

RE: Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 12:12 pm
by Q-Ball
They don't haul more supplies than a regular submarine, but cost just as much, are slower, and can't serve multi-roles. For these reasons most players choose not to build them.....

RE: Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 12:35 pm
by Shellshock
An "Army" submarine does seem like a contradiction in terms. I think the IJA were out of their depth if Yu know what I mean. [:'(]

RE: Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 12:45 pm
by RangerJoe
ORIGINAL: Shellshock

An "Army" submarine does seem like a contradiction in terms. I think the IJA were out of their depth if Yu know what I mean. [:'(]

The US Army had transport ships in World War II.

RE: Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 1:00 pm
by Zorch
ORIGINAL: Shellshock

An "Army" submarine does seem like a contradiction in terms. I think the IJA were out of their depth if Yu know what I mean. [:'(]
They were below C level?

RE: Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 1:07 pm
by Platoonist
I read in Submarines of the Imperial Japanese Navy by Norman Polmar that they were constructed by the Japanese Army without any consultation with the Imperial Navy. Sounds like another case of divided effort and research in the Japanese military. It's probably a good thing they didn't need torpedoes. I'd hate to see what inadequate research in that field would look like.

Oh wait. we do know what it looks like....USN torpedoes.

RE: Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 1:26 pm
by Lowpe
ORIGINAL: Q-Ball

They don't haul more supplies than a regular submarine, but cost just as much, are slower, and can't serve multi-roles. For these reasons most players choose not to build them.....

For that very reason I love them and build them and use them. They are fun. [:D]

RE: Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 3:02 pm
by Jorge_Stanbury
well, an SSX is 4 points [X(] it seems reasonable that a SST will be ~5 times more

and when you are starving, 40 tons of supply is a lot

RE: Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 3:11 pm
by RangerJoe
I think that the SSX is way overpriced.

RE: Japanese Type Yu Submarines

Posted: Fri Jul 24, 2020 3:21 pm
by Jorge_Stanbury
yes, specially since some xAKLs, xAPs, SCs and PBs are at 1 point

RE: Japanese Type Yu Submarines

Posted: Sat Jul 25, 2020 10:36 am
by Cavalry Corp
Did they only carry 40mt - maybe they should have more. It seems odd JPN would build ships like this if they only carried the same supply as a fully aquipped to fight sub. Shame VP cannot be adjusted in the editor to make them more worthwhile.

RE: Japanese Type Yu Submarines

Posted: Sat Jul 25, 2020 11:41 am
by Shellshock
The sub was only 137 feet long, crudely built with no interior bulkheads, two six cylinder diesel engines and a periscope which operated by counterweights. A top surface speed of eight knots. The scope could only be raised 3 feet. The IJA called them Maru-Yu to help conceal the fact that the Japanese Army was building submarines.

Among the places they were constructed at was a locomotive factory, a gun factory, a boiler factory, none was a proper shipyard.

I don't know of any accidents involving these boats, but I think I would have rather taken my chances in a barge. Apparently a few were hauled to the US Navy Yard at Mare Island for inspection.

Image

RE: Japanese Type Yu Submarines

Posted: Sat Jul 25, 2020 11:43 am
by Shellshock
Bob Hope at the flood controls folks. Well....he sure looks like Bob Hope anyway.

Image

RE: Japanese Type Yu Submarines

Posted: Sat Jul 25, 2020 7:35 pm
by Platoonist
I'd be curious if any Colombian drug cartels have ever looked in on the the plans for these. Updated with a few modern touches like GPS and contemporary diesels and that 40 ton capacity would look pretty good. The semi-submersibles they have running now can only ship ten tons of narcotics. You might even get a few runs out of them, instead of them being one-trip disposable boats.

RE: Japanese Type Yu Submarines

Posted: Sat Jul 25, 2020 9:28 pm
by Jorge_Stanbury
The cartel are probably hiring former Soviet block naval engineers turned Russian mafia to build their submersibles;

it is too risky and not cost effective to run them back, and you don't want them too big as not to put all the eggs in one basket

RE: Japanese Type Yu Submarines

Posted: Sat Jul 25, 2020 10:36 pm
by Platoonist
ORIGINAL: Jorge_Stanbury

it is too risky and not cost effective to run them back, and you don't want them too big as not to put all the eggs in one basket

It just staggers me that the economics of drug-smuggling allows you to discard a two million dollar submersible at sea like a used beer can. But, apparently so. [X(]

It seems they can move enough cocaine in a single voyage to generate more than 100 million USD in illicit proceeds for their drug lords.

RE: Japanese Type Yu Submarines

Posted: Sat Jul 25, 2020 11:48 pm
by RangerJoe
ORIGINAL: Platoonist
ORIGINAL: Jorge_Stanbury

it is too risky and not cost effective to run them back, and you don't want them too big as not to put all the eggs in one basket

It just staggers me that the economics of drug-smuggling allows you to discard a two million dollar submersible at sea like a used beer can. But, apparently so. [X(]

It seems they can move enough cocaine in a single voyage to generate more than 100 million USD in illicit proceeds for their drug lords.

I think that small depth charges would work or even mini homing torpedoes.

RE: Japanese Type Yu Submarines

Posted: Sun Jul 26, 2020 9:27 am
by Q-Ball
ORIGINAL: Shellshock

Bob Hope at the flood controls folks. Well....he sure looks like Bob Hope anyway.

Image

Great photos, thanks for posting these!

What hunk of junk

RE: Japanese Type Yu Submarines

Posted: Sun Jul 26, 2020 10:44 am
by Orm
ORIGINAL: RangerJoe
ORIGINAL: Platoonist
ORIGINAL: Jorge_Stanbury

it is too risky and not cost effective to run them back, and you don't want them too big as not to put all the eggs in one basket

It just staggers me that the economics of drug-smuggling allows you to discard a two million dollar submersible at sea like a used beer can. But, apparently so. [X(]

It seems they can move enough cocaine in a single voyage to generate more than 100 million USD in illicit proceeds for their drug lords.

I think that small depth charges would work or even mini homing torpedoes.
A boat with a sonar and a guy dropping hand grenades would work.

RE: Japanese Type Yu Submarines

Posted: Sun Jul 26, 2020 11:17 am
by RangerJoe
ORIGINAL: Orm
ORIGINAL: RangerJoe
ORIGINAL: Platoonist



It just staggers me that the economics of drug-smuggling allows you to discard a two million dollar submersible at sea like a used beer can. But, apparently so. [X(]

It seems they can move enough cocaine in a single voyage to generate more than 100 million USD in illicit proceeds for their drug lords.

I think that small depth charges would work or even mini homing torpedoes.
A boat with a sonar and a guy dropping hand grenades would work.

Ah yes, hand grenades. Someone I knew said that they were good for fishing . . .