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LA class semi kit.

Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°1
LA class semi kit.
I have an LA class kit on the way...
Last edited by Richard(Admin) on Sat 16 Jul 2011 - 9:29; edited 2 times in total
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david f- First Officer

- Posts: 675
Join date: 2010-11-10
Age: 61
Location: Cumbria
- Post n°2
Re: LA class semi kit.
I am pleased to hear that "Richard's shipyards" are still working at a prodigious rate!

Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°3
Re: LA class semi kit.
Well, thank you kind sir...the Gato is now on the back burner for a while, and the LA will be in first place on the slipway.
Last edited by Richard(Admin) on Tue 18 Jan 2011 - 9:44; edited 1 time in total
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"number one...periscope depth if you please"

Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°4
Re: LA class semi kit.
Made a start on the wtc for the LA today...




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"number one...periscope depth if you please"

Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°5
Re: LA class semi kit.
And the proposed equipment layout in the hull..ballast tank at c of g, balanced out by the forward mounted gel cell and the wtc.


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andyn- Posts: 27
Join date: 2011-01-08
Age: 20
- Post n°6
Re: LA class semi kit.
So as you know Rich, the absolute maximum width of the tank is 126mm (yes I've tried) and the opening is 114cm long.
It's a fantastic set of mouldings, you'll love it...
Here's where I am with mine (note the deck doesn't sit in right yet, got a little more sanding to do) When I get the shaft from Mark, it'll probably be finished in a couple of days after.


It's a fantastic set of mouldings, you'll love it...
Here's where I am with mine (note the deck doesn't sit in right yet, got a little more sanding to do) When I get the shaft from Mark, it'll probably be finished in a couple of days after.



Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°7
Re: LA class semi kit.
Plenty of room in there for what I have planned...what do you have to do to get the deck to fit the hull Andy?
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andyn- Posts: 27
Join date: 2011-01-08
Age: 20
- Post n°8
Re: LA class semi kit.
Get the dremel out with the sanding drum on it, and sand down the lip on the lower half of the hull. Seeing as your tube will fit right in that should be about it, but I'm going to have to sand some out of the hull and deck too. Purely because my Sheerline tank is so big...

Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°9
Re: LA class semi kit.
Don't possess a Dremel, so it'll be down to using the good old file and glasspaper...
My wtc is 3.5" diameter(OD)for the main cylinder and 3"(OD)for the ballast tank, so I don't think I'll have trouble fitting that into the hull..I hope.
My wtc is 3.5" diameter(OD)for the main cylinder and 3"(OD)for the ballast tank, so I don't think I'll have trouble fitting that into the hull..I hope.
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andyn- Posts: 27
Join date: 2011-01-08
Age: 20
- Post n°10
Re: LA class semi kit.
It's gonna take you ages then mate.... I wouldn't use a file personally, you'd be better off with a sanding block and about 80 grit...

Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°11
Re: LA class semi kit.
andyn wrote:It's gonna take you ages then mate.... I wouldn't use a file personally, you'd be better off with a sanding block and about 80 grit...
You've just cheered me up no end...maybe if I ask Mark nicely he'd trim it for me before he posts it off.
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Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°12
Re: LA class semi kit.
I asked Mark ever so nicely, and after promising to buy him and Angie lunch at Brighton Show, he's going to trim the hull for me and get it to a stage where the deck fits the hull without needing any further work.
So, whilst waiting for the postman, I've done some more to the WTC...made up a power distribution board and tidied up the wiring as much as possible.

So, whilst waiting for the postman, I've done some more to the WTC...made up a power distribution board and tidied up the wiring as much as possible.

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Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°13
Re: LA class semi kit.
And here's the WTC, all tidied up and just awaiting the installation of the esc for the motor, esc for the ballast pump, an auto leveller and a fail safe.
The ballast tank is practically finished, just need to make and install the internal baffles.

The ballast tank is practically finished, just need to make and install the internal baffles.

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"number one...periscope depth if you please"

Richard(Admin)- Admin

- Posts: 1377
Join date: 2010-11-05
Age: 62
Location: Sussex, UK
- Post n°14
Re: LA class semi kit.
And here's the ballast tank with two internal baffles fitted. The baffles are cut from 2mm black styrene sheet, each one has three 6mm holes drilled through to allow water to pass through without impeding the flow, but slowing it enough to stop any unequal filling of the tank, and hopefully allowing the boat to submerge on a level plane.

And this is the drawing I came up with to show the shape of the baffles.


And this is the drawing I came up with to show the shape of the baffles.

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Wheelerdealer(Ramesh)- Posts: 33
Join date: 2010-11-06
Age: 38
Location: London
- Post n°15
Re: LA class semi kit.
Is the water level going to be any higher than the top of the baffle? Its the sloshing of water when the tank is 'full' when you're underway that causes problems.
Last edited by Wheelerdealer(Ramesh) on Tue 18 Jan 2011 - 18:41; edited 1 time in total


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