[PSUBS-MAILIST] k-250 building questions

Wed Sep 6 23:00:26 EDT 2017

in usa who make then?

2017-09-06 6:38 GMT+02:00 irox via Personal_Submersibles <
personal_submersibles at psubs.org>:

> Hi Roberto, Philippe,
>
> I purchased one of Emile's domes from here:
> https://www.airesearch.nl/products/
>
> Very happy to get it, but full disclosure, I've not actually fitted it or
> dive with it on my K250 restoration (oh-my-god-why-didn't-i-build-one-from-scratch)
> project.
>
> Cheers,
>   Ian.
>
>
> -----Original Message-----
> From: roberto alvarez via Personal_Submersibles
> Sent: Sep 5, 2017 9:04 PM
> To: Personal Submersibles General Discussion
> Subject: Re: [PSUBS-MAILIST] k-250 building questions
>
> Were i can contact Emile for the acrylic? thank`s
>
> 2017-09-06 3:54 GMT+02:00 Alec Smyth via Personal_Submersibles <
> personal_submersibles at psubs.org>:
>
>> Hi Philippe and congrats on the undertaking! I had a K250 for about 12
>> years, so here are my two cents.
>>
>> 1) Precisely because they are in the cabin, I would recommend AGM
>> batteries for safety. Of course true that Kittredge used traditional
>> lead-acid for years without incident, but since there is something safer
>> these days, it seems logical to make use of that.
>>
>> 2) On my boat I added saddle tanks and they worked well, but as a
>> complement to the standard ones. You can see pictures here:
>> http://www.psubs.org/projects/1234567810/snoopyin2012/
>>
>> If my saddle tanks had been the only tanks, they would have needed to be
>> larger, but that can also create some complications related to longitudinal
>> stability, and the side thrusters don't make it any easier. In short yes it
>> should be possible, and as an example you might look up the K250 called
>> "Great White" (although I have only seen photos of it which don't show all
>> the details of the MBTs.) However, the standard tanks should not be too
>> hard to make, they are a good shape to lay fiberglass because there are no
>> sharp edges, which are an invitation to forming bubbles as lay the cloth.
>> I'm really bad at fiberglass work myself, but the standard MBTs are a good
>> first project.
>>
>> 3) For the acrylic my advice is the opposite - I would not even try that
>> myself and would go to the experts. There are two here, Greg and Emile.
>> Greg is without a fabrication facility at the moment, so I that leaves
>> Emile.
>>
>> 4) There are indeed a couple of K250s up on the great lakes. Perhaps
>> someone will speak up...
>>
>>
>> Best,
>>
>> Alec
>>
>> On Tue, Sep 5, 2017 at 8:56 PM, Philippe Robert via Personal_Submersibles
>> <personal_submersibles at psubs.org> wrote:
>>
>>> Hi All,
>>>
>>> I undertook the construction of a k-250 submarine. I have most of the
>>> metal components to make the pressure hull. I have some questions about
>>> batteries, MBT and acrylics dome.
>>>
>>> -Is it a good idea to use deep cycle lead-acid battery inside the
>>> pressure hull ? I read on old psubs mailing list to open the hatch when the
>>> batteries is charging. (h2)?
>>>
>>> -Do you think that the MBT can be replace by steel saddle tanks ? I have
>>> no idea how to make the original one and if I can upgrade the original MBT
>>> it will be great.
>>>
>>> -I try to find someone to make my acrylic dome with some experience in
>>> submarine dome forming.
>>>
>>> -I live in Quebec, Canada. So, if you know k-250 owner near New
>>> Hamphire, Vermont or Main it will be great if I can take a look on the sub.
>>> An hour or two, I do not want to disturb the owner.
>>>
>>> tanks
>>>
>>> Philippe
>>>
>>> phelop at gmail.com
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Personal_Submersibles mailing list
>>> Personal_Submersibles at psubs.org
>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>
>>>
>>
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>>
>
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