[PSUBS-MAILIST] Maynard's sub boat

Wed Aug 10 11:08:11 EDT 2016

You can spend as much or more than the cost of a sub to build a launch vehicle.   With the big wave action, I would not bother building anything unless you can go real big.  Trying to get a sub lined up to a docking vehicle in waves, forget it.   If your going to operate a K250 in the ocean with waves then put a big inner tube around the CT as a permanent part of the sub.  Instal a 12V compressor to inflate it and a valve system so the pump can vacuum the air out of the tube entirely.  Also vacuuming the air will be much faster than letting it free flow.  The tube can be painted to match the sub, so it looks better.  Hauling, launching and operating a sub can be a bigger challenge than building one.  Of coarse if you have an army of help that is different.Hank 

    On Wednesday, August 10, 2016 8:46 AM, River Dolfi via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 The HURL sinking pontoon barge seems it would be easy enough to build for a psub. Buy a craigslist party barge, replace the deck with grating, install sea-cocks and vents in the pontoons, and then install foam gunwales so that the barge has positive buoyancy when the pontoons are flooded, but floats low enough in the water that a K350 can be driven/dragged onboard.
I have a friend with a barge that they flood, drive a 75ft steel hull boat over, then refloat for use as a drydock.

My only concern would how well a top-heavy pontoon boat handles in offshore conditions. Not well I'd imagine.

On Wed, Aug 10, 2016 at 12:01 AM, via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

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Today's Topics:

   1. Re: Maynard's sub boat (Alan James via Personal_Submersibles)

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Message: 1
Date: Wed, 10 Aug 2016 04:01:43 +0000 (UTC)
From: Alan James via Personal_Submersibles
        <personal_submersibles at psubs. org>
To: Personal Submersibles General Discussion
        <personal_submersibles at psubs. org>
Subject: Re: [PSUBS-MAILIST] Maynard's sub boat
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        <1106568409.13970184. 1470801703939.JavaMail.yahoo@ mail.yahoo.com>
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This was a concept I was thinking about a while back.Excuse the sketch.The idea is to have a boat with twin outboards, & a consul up front.You raise the motors & pump enough water into the side pontoons to beable to drive the sub in & out. Maybe some assistance with a winchwhen returning would be required. If the unit was designed properlywith a floor that could take the weight of the sub, then you could trailerboth simultaneously. Alan

      From: k6fee via Personal_Submersibles <personal_submersibles at psubs. org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs. org>
 Sent: Wednesday, August 10, 2016 2:12 PM
 Subject: Re: [PSUBS-MAILIST] Maynard's sub boat

Hey, a sub on a sub!! I like it! ?
Keith T

Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Alan via Personal_Submersibles <personal_submersibles at psubs. org> Date: 8/9/16 6:56 PM (GMT-08:00) To: Personal Submersibles General Discussion <personal_submersibles at psubs. org> Subject: Re: [PSUBS-MAILIST] Maynard's sub boat
You mean like this Brian,http://oceanexplorer. noaa.gov/technology/subs/ pisces/pisces-training.htmlI was trying to describe this in an earlier post.?Alan
Sent from my iPad
On 10/08/2016, at 12:50 pm, Brian Cox via Personal_Submersibles <personal_submersibles at psubs. org> wrote:

Seems like there ought to be a way to have another submersible platform which cradles the K boat, then submerge to the bottom leaving the "carrier boat" sitting on the bottom until ur ready to go back home, then link back up with the carrier boat and surface.?? The carrier boat would need to be big enough to travel on the surface and keep the conning tower well above the surface to avoid flooding.? Of course many challenges with something like that.?Brian?

--- personal_submersibles at psubs. org wrote:al

From: Douglas Suhr via Personal_Submersibles <personal_submersibles at psubs. org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs. org>
Subject: Re: [PSUBS-MAILIST] Maynard's sub boat
Date: Tue, 9 Aug 2016 20:15:00 -0400

Thanks for the history Vance, did not know. ~ Doug S.?
On Tue, Aug 9, 2016 at 7:25 PM, via Personal_Submersibles <personal_submersibles at psubs. org> wrote:

I sent a response via phone and haven't seen it. To repeat: I do have some of George's original drawings on his tender. Web's was a takeoff on that design and not terribly successful due to poor load carrying capacity and so on. It worked, but was pretty restricted in what it could do. George's was better, hands down. 44' long as I recall. It started life with China diesels which were achingly slow, and ended up with a couple of junkyard 250 cid Chevy in-line 6 truck engines that worked very well. And were cheap, which was an important consideration for ANY consideration for the Captain.Vance

-----Original Message-----
From: Brian Hughes via Personal_Submersibles <personal_submersibles at psubs. org>
To: personal_submersibles <personal_submersibles at psubs. org>
Sent: Tue, Aug 9, 2016 5:13 pm
Subject: [PSUBS-MAILIST] Maynard's sub boat

Did Maynard ever produce/release plans for his sub carrier, Tender Nellie? I never saw it in person, but pictures lives on the net.http://johnmaynard.tripod. com/sub2.html

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