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[PSUBS-MAILIST] RE: ambient design query



Does any one have info on certification for ambient dry subs. Also I am designing one trying to keep as much visibility as possible using acrylic or somthing similar on steel frames forming a pod with acrylic sides and top and steel bottom with one man inside in a seated position with battery/ air pods and ballast tanks which takes the apearance of sled rails( if you can visualise) (ballast on top of batteries etc) are there any safety issues with such materials.

I ask this as most ambient designs seem to have steel or fibre glass hulls and still have tiny view ports. and since to me the attraction of ambient deisgns is the scope for larger less costly complex view ports and far greater visibilty I was just wondering why no-one seems to have done this( I could well be wrong)

will post my design soon.

Any thoughts would be great,

Cheers,

Dan


From: "Akins" <lakins1@tampabay.rr.com>
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: [PSUBS-MAILIST] Another semi submersible
Date: Thu, 10 Nov 2005 04:42:06 -0500

Here's another semi submersible that works on the same idea somewhat as the yellow submarine link in my previous e mail below.

For those members who want to get underwater but don't want to worry about ballast, tanks, buoyancy calculations, etc,

this is another one that would be safe to learn on before maybe later going to a completely submersible sub. At only 40

inches underwater the pressure isn't too much to worry about.

I had a similiar idea of using 3 large tanks connected to each other with pivoting booms and the middle tank would have viewports and

be weighted on the bottom and heavier than the other two tanks which would act as buoyant surface pontoons while the middle one would

submerge and that would bring the two outer pontoon tanks together side by side as buoyancy tanks on the surface that held the

third underwater tank's submerged weight, then blow third tank ballast to be on the water surface level with and between the other two pontoon tanks.

Of course you would have a long stove pipe style hatch going all the way to the surface so you could climb out of the submerged

middle tank hull to the surface whenever you wanted. So although the third tank in my idea would be submerged, there would be a

chimney so to speak always going above to the surface. I would make the pivoting booms so when the middle tank was submerged

the "chimney hatch" would always protrude above the water line and have a small freeboard decking around it also.

With a large enough tank and enough weight to take her under, my 3 tank semi sub would make a nice underwater lounging cabin. Not a true sub but

not bad either! Imagine you and your cabin mate looking thru the portholes with lights installed outside and then hopping up the chimney ladder to the surface

to catch the sunset over the ocean and then spending the night below in your portholed submerged cabin. Can you see it? Engines could be in the topmost

pontoons or the submerged one. Snorkel to the surface would supply engine air if engine in submered tank. Possibilities.

This fellow has used a similiar principle but with a smaller cabin..... http://www.rqriley.com/aquasub.html

Bill.



  ----- Original Message -----
  From: Akins
  To: personal_submersibles@psubs.org
  Sent: Thursday, November 10, 2005 4:00 AM
  Subject: [PSUBS-MAILIST] Who makes this semi submersible?


I found this every interesting semi submersible at Nautical Niche at this link.... http://www.nauticalniche.com/undersea/yellowsubmarine.htm

I tried to find out more about it but there doesn't seem to be anything else about it on the net. Does anyone here know who manufacturers it?

Is it made by nautical niche or someone else? I e mailed nautical niche but no answer yet.

Even though the upper hull never submerges, doesn't she just scream out to have someone make

this design into an ambient sub? I get ideas just from looking at her. Imagine if she could be converted to be an ambient sub and then you could

have enough room at the top for 4 people or lots of room for two people on the surface, then just take her down shallow for a two person ride.

Modifications would have to be made first of course. Makes one think though doesn't it? A boat AND a almost pre made ambient?

  If anyone knows more about this semi sub boat please let me know.

  Thanks,

  Bill.






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