[PSUBS-MAILIST] OTS transducer location

[Douglas Suhr via Personal_Submersibles]

Alan, I like that idea (a "pump barge"). Whatever we determine will work,
it's gonna have to deal with relatively rough seas. ~ Doug S.

On Tue, Aug 2, 2016 at 9:56 PM, Alan via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Doug,
> I have seen a number of inflatable pontoon systems for lifting boats
> above the water. They all used pumps to pump out the water.
> I wonder if there is merit in designing an inflatable pontoon that you
> could
> lower, & drive Snoopy on to, then fill with air & tow.  It would
> solve the problem of boarding in rough seas, as you could climb in while
> it was up on the pontoons. The pontoons would also make it easier to
> board without bashing your boat against the sub.
> You would need a large barge if you are looking at hoisting in to the
> water.
> It wasn't the easiest in perfect conditions in to your canal.
> I think they use a ballasted platform in Hawaii ( similar idea) Scott
> might confirm
> that as he has just been there.
> Alan
>
> Sent from my iPad
>
> On 3/08/2016, at 12:50 pm, Douglas Suhr via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Good point Alan, wave height is an issue on more than one hand with Snoopy
> (as I'm sure you're aware).
>
> BTW, we're starting to look seriously into building or buying a barge for
> the Keys. We've got to get Snoopy out to the oceanside more quickly than by
> towing her. ~ Doug S.
>
> On Tue, Aug 2, 2016 at 6:42 PM, Alan James via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> Doug,
>> sounds like a cunning plan!
>> Be aware that it might work when the water surface is flat,
>> but fail if there is too much of a wave.av
>> I'm with Jon on having a descent surface communication system.
>> Alan
>>
>>
>>
>> ------------------------------
>> *From:* Douglas Suhr via Personal_Submersibles <
>> personal_submersibles at psubs.org>
>> *To:* Personal Submersibles General Discussion <
>> personal_submersibles at psubs.org>
>> *Sent:* Wednesday, August 3, 2016 8:29 AM
>> *Subject:* Re: [PSUBS-MAILIST] OTS transducer location
>>
>> 'Sound' thoughts Jon... :) ~ Doug S.
>>
>> On Tue, Aug 2, 2016 at 4:25 PM, Jon Wallace via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>
>> Nothing wrong with Radio comms on surface, in fact you should have a VHF
>> for ocean water anyway.  Depending upon the location of the transducer on
>> the vessel, at the surface you may find you don't have enough water column
>> to communicate effectively.  Test first.
>>
>> Jon
>>
>>
>> On 8/2/2016 3:09 PM, Douglas Suhr via Personal_Submersibles wrote:
>>
>> Dad and I are planning to try a little experiment in regards to the
>> mounting location of Snoopy's transducer array. The idea is to mount the
>> array on a hinged whip behind the hatch. While she's on the surface the
>> transducer will be under the waterline for surfaced communication with
>> surface support (if the boat and sub are out of earshot of one another).
>> When Snoopy submerges, the array's float lifts the mast erect over the sub,
>> becoming the tallest part of the vessel while submerged.
>>
>> Just an idea, but we're keen to try it when we get the chance. One
>> possible drawback is entanglement danger... we've been thinking a lot about
>> that lately. ~ Doug S.
>>
>>
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