[PSUBS-MAILIST] Life boats

Sun Aug 9 11:46:10 EDT 2020

I don't know if this is possible in a sub-deployed embodiment, but when I run a downline buoy for diving, I hang a snatch block under the buoy, and size the line to be somewhat longer than the water depth, with a counterweight on one end (typically, anchor weight is 60 lbs, and counterweight is 15 lbs). This acts to pull the buoy to be vertically in line with the anchor, while still allowing for tidal height change and sea state.

With a deployed buoy, you could do something similar at the buoy end, so that once the buoy reached surface any additional deployed line would be pulled down by a counterweight and keep the buoy in position. You can also shackle the counterweight back to the main line, so that it follows it down, and you have the entire length of that line as the compensation range, and only need to reel in line when the counterweight hits the sub, which you could verify visually if the land point was covered by a viewport.

Sean

-------- Original Message --------
On Aug. 9, 2020, 09:21, Brian Cox via Personal_Submersibles wrote:

> Great video ! Do you just go up as far as you can on the beach and then wait for the tide to go out ?
>
> I'm curious as to how other sub mad men handle the float buoy. It seems you would want it just at the surface with not a lot of slack in the line. I was thinking to have a "brake" on the reel so I could stop it when it gets to the surface and to stop it free wheeling.
>
> Brian
>
> --- personal_submersibles at psubs.org wrote:
>
> From: Rich T via Personal_Submersibles <personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
> Subject: Re: [PSUBS-MAILIST] Life boats
> Date: Sun, 9 Aug 2020 00:00:27 -0400
>
> Yes. I have enormous use for them. I am located in
> Los Angeles as well. May I come view the vessel in person? I am organizing a group of engineers in California who are interested in tinkering with burgeoning stealth technology for submarines, which the government may actually pay for if patents are secured. A vessel like this would be perfect for such experiments.
>
> On Saturday, August 8, 2020, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>> Hi Jim,
>> good to hear you are still alive!
>> Thanks for correcting my "American" I am sure I must say things that
>> are misinterpreted all the time. I do that with women!
>> My other thought was to make a large ambient sub out of them. I am sure
>> Tim Novak would be thinking " underwater habitat".
>> Alan
>>
>> On 9/08/2020, at 2:56 PM, Jim via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>
>>> Alan,
>>> You were the first person who came to mind when I saw this thread. I knew you would come up with some inventive purpose for it and probably wonder if there was a way you could get your hands on it.
>>> “Caravan” has a very different meaning in the other parts of the English-speaking world than it does in the United States. The term we would use is “camper.” Caravan brings to mind a string of camels.
>>> Jim T.
>>>
>>> Sent from my iPad
>>>
>>>> On Aug 8, 2020, at 9:17 PM, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>
>>>> 
>>>>
>>>> Hey Brian,
>>>> just stick it on a trailer & use it as a caravan.
>>>> Have seen an Australian floating caravan before!
>>>> Alan
>>>>
>>>> On 9/08/2020, at 8:54 AM, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>>
>>>>> Hi All, A friend of mine who works in the Oil industry offshore is offering me two of these lifeboats for free. Anyone have a use for them?
>>>>>
>>>>> Brian
>>>>
>>>>> <IMG_20200730_153156.jpg>
>>>>
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>>>>
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>
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