[PSUBS-MAILIST] sea state

Alan via Personal_Submersibles personal_submersibles at psubs.org
Fri Jul 15 15:31:01 EDT 2016


Sorry, sent from my ipad when I should have been asleep.
https://m.youtube.com/watch?v=lYZkddx40HQ
It's the same video that was up on Psubs.
Alan

Sent from my iPad

> On 16/07/2016, at 5:13 am, Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Hi Alan,
> 
> I was looking forward to the video, but that's a pdf file! I would describe a K250 as a big hole in the water waiting to fill up whenever the hatch is open, but I agree Emile's boat is something entirely different. Also, in my experience there is a huge difference between boarding one person or two. If it's just me, I can time it better and slam the hatch right behind me, but if there's someone inside the sub before I get in, it slows down the move a lot and makes me a whole lot more worried about the consequence of a mishap. I can quite see a situation where a two person load would be too dangerous but a one person dive might still be accomplished.
> 
> Best,
> 
> Alec
> 
>> On Fri, Jul 15, 2016 at 12:09 PM, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> Emile,
>> we abandoned a dive in Snoopy 4 miles off the Florida Coast in what didn't seem like big seas.
>> It looked too dangerous to board. Although With your sail it would have been OK.
>> Next day we towed Snoopy out with Alec, Steve & 9 bags of ice for cooling.
>> We had to transfer them to the boat after the dive, & it was a bit tricky. The sub sits
>> in the water like a rock while the support boat bounces up & down around it. 
>> So you are in danger of smashing your hull on to the sub. We had 3 of us trying to
>> hold the boat off as we transferred crew.
>> Here is the video that used to be on psubs. The first few seconds show the surface sea state
>> which doesn't look too bad.
>>  http://www.ti.com.cn/cn/lit/ds/symlink/lm2593hv.pdf
>> I would be interested in hearing how you get on.
>> Cheers Alan
>> 
>> 
>> Sent from my iPad
>> 
>>> On 16/07/2016, at 2:53 am, via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>> 
>>> I've seen it flat as a parking lot. Not often, but it happens. You'll just have to make the determination when you get there. I hope it's a quiet day. And I wish I was going with you. It would be great fun to dive the North Sea again.
>>> Vance
>>> 
>>> 
>>> -----Original Message-----
>>> From: emile via Personal_Submersibles <personal_submersibles at psubs.org>
>>> To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org>
>>> Sent: Fri, Jul 15, 2016 9:13 am
>>> Subject: Re: [PSUBS-MAILIST] sea state
>>> 
>>> Hi Vance,
>>>  
>>> The north sea is never flat.. A big offshore supplier will bring us to the spot. But they are not allowed to crane a sub with people inside so we have to go for the unsafe option.
>>>  
>>> But with the given (long?) wavelength 0,5 to 1 meter/
>>>  
>>> Emile
>>>  
>>> Van: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] Namens via Personal_Submersibles
>>> Verzonden: vrijdag 15 juli 2016 15:03
>>> Aan: personal_submersibles at psubs.org
>>> Onderwerp: Re: [PSUBS-MAILIST] sea state
>>>  
>>> Mostly never, Emile, unless it's high summer and flat calm. You be careful out there.
>>> Vance
>>> 
>>> -----Original Message-----
>>> From: emile via Personal_Submersibles <personal_submersibles at psubs.org>
>>> To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org>
>>> Sent: Fri, Jul 15, 2016 8:59 am
>>> Subject: [PSUBS-MAILIST] sea state
>>> Hi All , or more those who operate a small sub on open sea.
>>>  
>>> At what wind speed and wave height it is save to operate a small sub like mine ( freeboard outer sail 0,7 meter.)
>>> We plan to board the sub from a RIB
>>>  
>>> For a possible Northsea expedition..
>>>  
>>> Best regards, Emile
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>> 
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