[PSUBS-MAILIST] Alec's new sub

[Antoine Delafargue via Personal_Submersibles]

Hi Alec,
Very nice sub with manly attributes. I would never have guessed that
when you mentioned a while ago that the stern would be surprising.

Love the Naughtylus name

regards,
Antoine

On 6/29/15, James Frankland via Personal_Submersibles
<personal_submersibles at psubs.org> wrote:
> Hi Alec,
>
> New sub looks great.  With those ball floats at the back it reminded me of
> "The Liberator" from an old BBC science fiction program called "Blakes 7".
> I was a big fan when I was a kid.
>
> https://contactinfinitefutures.files.wordpress.com/2012/06/the-liberator.jpg
>
> On 29 June 2015 at 04:40, Alan James via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> That's great thanks Alec,
>> I'll save that description with the dwg.
>> Alan
>>
>>   ------------------------------
>>  *From:* Private via Personal_Submersibles <
>> personal_submersibles at psubs.org>
>> *To:* Personal Submersibles General Discussion <
>> personal_submersibles at psubs.org>
>> *Sent:* Monday, June 29, 2015 1:21 PM
>>
>> *Subject:* Re: [PSUBS-MAILIST] Alec's new sub
>>
>> Correct!
>>
>> The little O ring under the threaded contacts on the hull side has two
>> purposes. It prevents water coming into the sub if you drop the thruster,
>> but it also acts as a spring to maintain good electrical contact. When
>> the
>> thruster is off, the sub side contact sticks out very slightly above the
>> rest of the penetrator, so when you draw the motor toward the sub the
>> contact squeezes its O ring.
>>
>> The contacts on the sub side go through a nylon insert sealed with O
>> rings
>> and locked by a shoulder in the SS insert. On the thruster side the
>> contacts and cables are potted, but because the thruster is oil filled
>> the
>> potting is not subject to any pressure.
>>
>> The bolt has a shaft seal that prevents it being pushed into the sub if
>> you drop the thruster.
>>
>> The thrusters are fixed, not rotating. The benefit of this design is that
>> there are neither cables nor tubes to sever - you just need to switch off
>> power to the thruster before dropping it, and the dropping itself is just
>> three or four turns of a bolt.
>>
>> Best,
>>
>> Alec
>>
>>
>>
>>
>>
>> On Jun 28, 2015, at 7:55 PM, Alan James via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>> I think I understand it now.
>> The 2 bolts are the electrical through hulls & you wind the
>> central nut to push the unit off. The electrics would unplug in the
>> process.
>> Alan
>>
>>   ------------------------------
>>  *From:* hank pronk via Personal_Submersibles <
>> personal_submersibles at psubs.org>
>> *To:* Personal Submersibles General Discussion <
>> personal_submersibles at psubs.org>
>> *Sent:* Monday, June 29, 2015 10:02 AM
>> *Subject:* Re: [PSUBS-MAILIST] Alec's new sub
>>
>> Alec,
>> Nice project, I like the trawl floats in the back, it is so different!
>> The first thing that comes to mind when I see your new build is, Manatee.
>> You sure have put in a lot of time on this.  I like the jettisoning
>> system, it is the same idea as Gamma's tail, very simple and clean.  The
>> bellows are very nice!
>> Nice video, you have good control of the sub.
>> Hank
>> --------------------------------------------
>> On Sat, 6/27/15, Alec Smyth via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>> Subject: [PSUBS-MAILIST] Alec's new sub
>> To: "Personal Submersibles General Discussion" <
>> personal_submersibles at psubs.org>
>> Received: Saturday, June 27, 2015, 10:40 PM
>>
>> Hey everyone, I'm
>> breaking cover with the project sub. It is in need of a
>> name. If the pictures inspire any thoughts that are not
>> rude, I'm all ears for suggested names!
>> http://www.psubs.org/projects/1234567810/newsub/
>>
>>
>> Best,
>> Alec
>> -----Inline Attachment Follows-----
>>
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