[PSUBS-MAILIST] sea state

Fri Jul 15 16:47:01 EDT 2016

HI Emile
if you could find a couple of harbour pontoons, you attach one on each side
of the sub when boarding, or have truck slings go beneath the hull, just in
case

if you have time you could even attach I beams to join them with a 1.5m
space between for your sub.
this way you could crane them and the sub at once to the sea,

regards
antoine

On Fri, Jul 15, 2016 at 10:03 PM, hank pronk via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Emile,
> Maybe an inflatable CT extension could help.  You could use an inflatable
> raft with the bottom cut out.  Might be more trouble than it is worth, but
> an idea at least.
> Hank
>
>
> On Friday, July 15, 2016 1:31 PM, Alan via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>
> 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
> <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>
> personal_submersibles at psubs.org>
> To: 'Personal Submersibles General Discussion' <
> <personal_submersibles at psubs.org>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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