A Submersible Anyone???

Discussion in 'Boat Design' started by Charlie Alpha, Apr 27, 2012.

  1. Charlie Alpha
    Joined: Apr 2012
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    Location: Venezuela

    Charlie Alpha Junior Member

    WHAAAAAAAAT? $1M !!!! give some hope to the little poor man.

    Thinking , thinking and thinking if I have to put aboard all this wasted weigh AKA Ballast it got me thinking How about elctric solar /generator charged electric powered semi sub lots and lots of batteries tha can serve as both energy storage supply and ballast at the same time I think they will come out cheaper than just the lead. Do the gel ones weight the same as the lead/acid batteries?. A back up outboard just in case. What do you guys think of this comperaded to gas powered engine???
     
    Last edited: May 8, 2012
  2. PlaningWheel
    Joined: Nov 2010
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    PlaningWheel Junior Member

    The T. subs are mostly batteries from one end to the other. And they do require an on shore site with lots of hydro.

    The $1M??? is more about getting a good location and the advertizing that's involved.

    But for a big 64 passenger semi-sub the lowest price was from a boat builder in Spain and the final plans from a design firm in Scotland. Which were $850,000 to build and $50,000 for final plans if I supplied most of the preliminary work.

    If you just want to put peoples eyeballs underwater there are several examples of slow moving boats with a narrow viewing chamber under the boat operating today.

    There are also examples (I think) of permanent underwater structures with staircases to the surface docking.
    I'm thinking underwater bar with flood lights and fish bait (for the shark show) with 24 hour food and beverage plus maybe some gambling (if allowed) etc. And now maybe were back to the $25K+ per day.

    Colin
    http://www.cg.xbug.ca
     
  3. Charlie Alpha
    Joined: Apr 2012
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    Charlie Alpha Junior Member

    Alpha 1

    Here is the 1rst drawing . Had a little trouble trying to upload hope it gets there.
    This will be the catamaran version I will work on the Trimaran for next week.
    Let me know what you guys think of it and if something that will work or I am just completly carzy.
     

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  4. Charlie Alpha
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    Charlie Alpha Junior Member

    Alpha1

    Here it is first try so dont be so hard on me, the scale 1:100 makes it a 28' plus for 12 passangers in the hulls more on deck I think if the scale is reduced to 1:75 can make it work at 21' with 8 passengers and even at 1:50 for a 14' boat for 4 passenger but that will really be pushing it.Of course can be bigger its just a matter of money.
     

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  5. PlaningWheel
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    PlaningWheel Junior Member

    Ok now you need a tank that can hold 12 tons or so of water between the hulls.
    And a big pump or 2 driven by your motors but still very reasonable.
    Looks good design wise, a bit ugly otherwise.
    I had a Finnish sub company tell me that my boat would not be fast and it would not be cheap but it would be ugly.
    When I was designing my boat I thought it had to put the passengers down a good distance to compete with a T. sub but it's not really required in most locations.
    I know in all your posts you've stressed that it has to be low priced so that you can afford to do it. This looks like a great design from that point of view in particular.
    I've never liked the idea of having more than 1 boat involved or transfers at sea or a specialized staff and facility to maintain the equipment.
    Sun visors??? (hinged maybe) over the windows might help provide an illusion that you are at a greater depth than you really are as well as providing a better view when your the wrong way to the sunlight?

    Colin
    http://www.ww.xbug.ca
     
  6. rwatson
    Joined: Aug 2007
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    rwatson Senior Member

  7. Submarine Tom

    Submarine Tom Previous Member

    CAG,

    Great drawing!

    You're on your way!

    Now, the devil is in the details.
     
  8. Charlie Alpha
    Joined: Apr 2012
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    Location: Venezuela

    Charlie Alpha Junior Member

  9. Charlie Alpha
    Joined: Apr 2012
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    Charlie Alpha Junior Member

    The drawing was made just to have something to start working on . I has to be refined (a whole bunch) and make it more practical ( And by the way I dont think is that "UGLY" ) . The shapes of the hulls must be maded slimer narrower and even less tall ( at the moment they have over 2 mtrs from floor of bilge to ceiling of hull ) By changing the shape can achive less volume therefor less displacment and thus less ballast to achive inmersion.
    I do think as you about the transfer in two boats specially in the case of a small boat with few pasanger. The only reason I mentioned in your case was because of the time frame and docking and embarking manuever.
    Agree with sun visor making the sides of the boat in a sharper angle , lowering the highth of the window say shoulder high will make the passenger forget about trying to look up and concentrate in looking down at see bottom (you can see this in almost every existing submersible) and reducing the width of the hull but not the deck will provide this shade to do away with the sun glare.
     
  10. rwatson
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    rwatson Senior Member

    How much do you think your project is going to cost ?
     
  11. Submarine Tom

    Submarine Tom Previous Member

    $23 000 USD

    He already stated this in post #8.
     
  12. Guillermo
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    Guillermo Ingeniero Naval

    Hi Carlos,
    Where will you put the water needed to submerge the hulls?
    Cheers.
     
  13. Charlie Alpha
    Joined: Apr 2012
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    Charlie Alpha Junior Member

    Hola Sr Guillermo,

    I have being thinking about this ballasting problem, looked up all that I could find in the internet in ballasting systems. I dont have a clear idea yet but so far this is what I came up with, have to polish the idea.

    The vessel will have hulls ( 2 ) aprox 8.5 x 2 x 1 each the volume of this part of the hull that will need to be sumerged is aprox 17 mtrs3(each hull thats alot) for 17 ton displacement for each hull while sumerged. Considering this the whole boat will weight about 6 tons dry 3 for each side 14 tons to go I am thinking to place at keel quick release emergency ballast 1 ton ( cement ) 13 tons to go forepeak and aftpeak ballast chambers from keel to deck I think I can accomodate 2 ton in each chamber for 4 more tons 9 tons to go tank along midsection running on top the lenght of the Keel for 2 more tons, 7 ton to go the rest most go either floor of deck or sadle chamber on both side of hull near the deck line meaning that they will be above the water line at all times ( may cause some inestability) this of course is estimated for each single hull .I will more likely use alot more batteries than I have in mind that will make up for some of the ballast needed I am even considering dual engine and elctric propulsion for charging batteries and compressed air while cruising and reduced noice with electric propulsion while summerge. I know its alot of water thats why I have to refine the hull shape to minimize their volume to the limit without sacrificing too much space from the passenger chamber. I will try to graffic and recalculate the volumes more accurate for this week

    Regards
    Carlos
     
  14. Guillermo
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    Guillermo Ingeniero Naval

    Perhaps it would be simpler to use a trimaran configuration with the passengers chamber in the middle hull and two submersible SWATH style amas with enough floodable volume to compensate the added displacement of the inmmersed passengers chamber.

    With empty amas, the central hull would be above water and with them flooded it would be submerged. The deck over the three hulls would accomodate the helming position as well as seats for passengers for surface navigation.

    Cheers.
     

  15. Charlie Alpha
    Joined: Apr 2012
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    Charlie Alpha Junior Member

    Yes I looked into the SWATH design Question? Would it not work as well in a Catamaran configuration and have the two torpedo shape under each hull?? . I just come accross a catamaran SEMISUB 1 is called how the sort it out the problem from a brief view the build it very high 3 decks including the observation chamber and yhus puting alot of weigh on top and from a look at the observation chamber can look out just one side the other half of the hull they must use it for ballast. take a look
    http://semisub1.com/
    Some one had already invented it I just need to adapt it to my size and pocket.By the way its not in my plans to build anything of that scale ( not for now).There is my proven working model so yes it can be done.
     
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