I'm to design a canal cruiser that can handle high seas...

Discussion in 'Boat Design' started by solitaire, Aug 17, 2012.

  1. erik818
    Joined: Feb 2007
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    Location: Sweden

    erik818 Senior Member

    The UK canals designed for narrowboats are exceptional, not the world norm. I've never seen a narrowboat in Sweden, or in any other place outside the UK.

    The most famous Swedish canal would be Göta Kanal, connecting the Baltic Sea with the North Sea via the two large lakes Vättern and Vänern. It has 58 locks and a total length of 190 km of which half is man made. Maximum allowed size for ships is:
    Length 30 m
    Beam 7 m
    Draft 2.8 m
    Height above waterline 22 m

    A very small and scenic canal I sometimes use when going from Stockholm to the Baltic Sea is Strömma Kanal. Minimum width is 7 m, depth 2 m and maximum allowed height above the waterline is 2.7 m.

    All canals have different restrictions so you have to check the chart before you enter. As Solitaire mentioned, if you don't want to wait for bridges to open you have to be low enough to pass under the bridge. The height for every bridge is marked on the chart.

    Please forget narrowboats and canalboats. The canals are just routes between rivers, lakes and seas. The boat needs to be designed for the lakes and the seas, in Solitairs case also with the restrictions of a particular canal considered.

    Erik
     
  2. Ad Hoc
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    Ad Hoc Naval Architect

  3. erik818
    Joined: Feb 2007
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    Location: Sweden

    erik818 Senior Member

    I've seen canal boats elsewhere, but the 2 m wide narrowboats only in the UK. Height, not width, seems to be the main restriction for leisure boats.
    Erik
     
  4. Frosty

    Frosty Previous Member

    Uk canals do not connect between lakes rivers and seas. They connect Northern industrial inland towns to some where goods can be moved to the sea or rail or mines. Or between other industrial areas such as Birmingham.

    Manchester ship canal is the only one I know off that has ships that can access the sea. Definition of a canal is a man made river. Manchester ship canal is massive but man made.
     
  5. Emerson White
    Joined: Aug 2012
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    Emerson White Junior Member

    Erik was telling you to forget about the UK, he then went on to talk about canals that are in Sweden, which are unlike the canals that you have just described.

    The canals in Sweden do connect the lakes to the ocean. They have a high volume of water flowing through them and do not change greatly in elevation. This difference allows the Swedish canals to be much bigger, and have much bigger locks.

    I and others have posted links to information about the Swedish canals, showing maximum beam and maximum draft and the like. If you follow these links you will see further information that confirms that you do not need a narrow boat to use the canals of Sweden.
     
    Last edited: Aug 26, 2012
  6. Frosty

    Frosty Previous Member


    Oh sorry---- Do we all have to do what Eric says?
     
  7. FMS
    Joined: Jul 2011
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    Location: united states

    FMS Senior Member

    Erik reiterated the lakes that are part of the Swedish canal system are significant for this boat's SOR. Yes it will spend much of it's time in the Swedish canals, however Solitaire's primary concern was stability and comfort on the lakes at 10-15kt with 1 meter waves.

    I would like to know what determined the length specified in the first post. Possibly budget and building a new boat instead of buying a used one is part of the SOR, but it hasn't been stated why 6m or 8m length is desired, whether there are aspects of budget, use, or the canal system that favor this length.
     
  8. Zootalaws
    Joined: Jul 2012
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    Location: SE Asia

    Zootalaws Junior Member

    Perhaps you could just shut up and let the adults talk? (that's a question, in case your dudgeon meter has hit '11' and you have mistaken it for a directive).

    You have gotten every single conceivable thing wrong in this thread, from the OPs requirements, to the canals of Sweden, to the canals of the UK. Not only that, you have been argumentative and obdurate when people have (respectfully) tried to steer it and you back in the direction the OP intended.

    If it wasn't for your obstinate posts, this would have been quite an informative and productive thread.

    Looking at your other posts, it isn't hard to see why it descended this way - volume of posts is no indication of quality, it seems.

    To the other posters, my apologies - <insult directed towards another member removed>
     
    Last edited by a moderator: Aug 26, 2012
  9. Emerson White
    Joined: Aug 2012
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    Emerson White Junior Member

    No, but you have to pay attention to what he says if you want to understand what he is talking about.

    If you don't want to take the time to understand what the conversation is about, then by all means save your self some additional time and don't join it.
     
  10. Zootalaws
    Joined: Jul 2012
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    Location: SE Asia

    Zootalaws Junior Member

    I used to live just up the road from the Caen locks, on the Kennet and Avon. It is remarkable, the variety of boats that use the canal system.

    I think the key phrase in your quote is "in order to go anywhere' - that is, that if they keep within those dimensions, they can go anywhere - but you are able to use long stretches, as long as you fit in a lock and under any bridges you might encounter.

    My neighbour used to sail :)
     
  11. Frosty

    Frosty Previous Member

    July 2012 joining date with a massive 27 rep points just 7 overstandard and you know every thing don't you. I don't know if you are aware but your posts are horrible vindictive and just plain abusive . <insult directed towards another member removed>

    You live in Brunei and dont even know where to but some epoxy for a little project on you little 4 wheel drive hobby.

    Yes I still have your little Pm.

    Daddy got a job on an oil rig with Shell?

    The admin will be along in a minute telling you to be polite to members.

    You could'nt even write your name without slagging some one or something.

    Im sure you could design a canal boat to go on the sea could'nt you.

    Its a stupid Idea <insult directed towards another member removed>

    Noticed the professional have long gone. Why dont you bring something to the table instead of pointless rude rhetoric.
     
    Last edited by a moderator: Aug 26, 2012
  12. Boat Design Net Moderator
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    Boat Design Net Moderator Moderator

    Frosty and Zootalaws (and anyone else), please let's keep the threads polite to one another and on topic. Thanks.
     
  13. Zootalaws
    Joined: Jul 2012
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    Location: SE Asia

    Zootalaws Junior Member

    No worries - I am not the one polluting 6 pages of thread with pointless drivel.

    Maybe he needs to have his ration reduced?
     
  14. Frosty

    Frosty Previous Member

    The purpose of the thread is to design a canal boat and a sea boat in one. I don't think where you used to live and how you admired the locks in operation has any obvious benefit.

    They are talking about Swedish canals not Uk canals Forget UK canals.

    How is the fact that your neighbor use to sail be of any benefit???

    Please bring something of some use to the table or let the others who actually have a boat talk.
     

  15. Emerson White
    Joined: Aug 2012
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    Location: Nordland, WA, USA

    Emerson White Junior Member

    Frost, why don't you send zooatlaws a PM, and leave this thread alone?
     
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