[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PSUBS-MAILIST] Rand Corp sub competition entry



The article said he's using a new combination of physics in this sub.  What I think I'm seeing here is saddle ballast tanks of fiberglass, so the 1 atm sub sub is nestled in the saddle tanks like a hot dog in a bun.  The ballast tanks are shaped like a boat's hull for surface running.  It can be fast on the surface by hydroplaning if the seas are calm, but not so in rough seas...
 
Am I close?
 
Stan
 
 
-----Original Message-----
From: djackson99@aol.com
To: personal_submersibles@psubs.org
Sent: Fri, 23 Feb 2007 2:37 PM
Subject: Re: [PSUBS-MAILIST] Rand Corp sub competition entry

Paul: I when and found another source with better photos.

http://www.navytimes.com/news/2007/02/apsubmarinedesigner070211/

Click on the "Next Photo" on the link above or use the following links:

http://photos.jacksonville.com/mycapture/enlarge.asp?userphoto=0&image=14003793&thispage=1
http://photos.jacksonville.com/mycapture/enlarge.asp?userphoto=0&image=14003790&thispage=1
http://photos.jacksonville.com/mycapture/enlarge.asp?userphoto=0&image=14003787&thispage=1

I just dont get why they are so interested in keeping the team dry.  They are going to get wet anyway, they have to breath air transported on the sub anyway, the water in the cabin can be warmed to reduce stress, and they certainly already have wet communication ability.  So why build a sub that is tons heavier and much slower than a wet delivery sub?   --Doug J



 
-----Original Message-----
From: paulkreemer@gmail.com
To: personal_submersibles@psubs.org
Sent: Fri, 23 Feb 2007 12:11 PM
Subject: Re: [PSUBS-MAILIST] Rand Corp sub competition entry

Doug, I think you gleaned more from the article and photo than I did!  So the cockpit is centered, huh. 

This new competition with Rand sounds like a follow on to the cancelled ASDS mini-sub program.  The SEALs wanted a better vehicle than their old wet SDV.   Maybe the ex-SEALs in the PSUBs group have some non-classified comments.  Things they could tell us without killing us afterwards.


ASDS article:
http://www.defenseindustrydaily.com/2006/08/asds-minisub-program-taking-on-water-updated/index.php



keep on planing-
Paul


On 2/15/07, djackson99@aol.com < djackson99@aol.com> wrote:
Paul:  Thanks for posting this. I of course think it's the neatest thing since sliced bread.  I wish there were more details available. With their experience, team effort, commercial goal, and financial backing it will be very exciting to see what they achieve. 

As flattered as I would be to think they took any ideas from my design, I doubt that happened as I am always looking for the low cost approach and focused on maintained good downward vis and low submerged speed.  Perhaps the North Koreans will be interested in my low cost approach?  Maybe I can sell a version to the Navy for interception practice? :)

Their cockpit looks to be centered which just makes sense if you're looking to deliver a SEAL team.  I do think they have over done the hype; a surface planing submersible as important as the helicopter? Ha!  And besides the SEALS already have a surface planing submersible, it's just wet.  I really don't see any real benefit in building a craft that will deliver the SEAL team in a dry environment when they will inevitably have to enter the water to make land fall.  I do bet they can sell some as rich boy toys.

I'd be interested to know what you and others think.

Best Regards
Doug Jackson
www.submarineboat.com



 
 
-----Original Message-----
From: paulkreemer@gmail.com
To: personal_submersibles@psubs.org
Sent: Tue, 13 Feb 2007 12:16 AM
Subject: [PSUBS-MAILIST] Rand Corp sub competition entry

Reynolds Marion, and team, building a sub for possible military or commercial use.  From the little description in this article I'd guess they took a page or two from Doug Jackson's design: "marries a speedboat and a submarine".

http://www.gainesville.com/apps/pbcs.dll/article?AID=/20070212/LOCAL/702120304/-1/news



Paul


Check out the new AOL . Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more.



--
Planning to soon start procrastinating.

Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more.