Hong Kong 3mt Sampan

  • 29 Jan 2023 18:35
    Reply # 13077270 on 13066650

    Hello,

    I had some time to design and I added more details to the boat.

    A rudder, slightly raked. I am still thinking about a proper way to hoist it, I will have to use ropes, as Chinese did.

    I added also a rig, wich is the Halibout Extended Rig, that I found in the Junket thread (not my design).

    I did not calculate the CE yet, and I think I will have to step the mast a bit back, of may be to increase a bit the depth of the keel. We will see.

    Comments and Opinions welcome.

    2 files
  • 22 Jan 2023 11:36
    Reply # 13067598 on 13067115
    Anonymous wrote:

    DVV wrote:

    What do you think? Opinions and questions are welcome.

    I love the lines. No one seems to make sheer lines like that anymore. I am not sure if that means it is just so much easier (and less expensive) to make straight sheer hulls in a factory, or if straight sheers are easier to sail and more sea kindly. It is obvious to me that a hull made with all uniform width planks will tend toward high ends. I would guess straight decks would be easier to walk on too (though that is of no concern in this case). What is the length? It looks like it should be 4 or 5 meters going by the motor size. 3 would be a bit short for a pointy end I think.

    I think the shape of the sheer depends from many thing, and tradition has a large part in this. Chinese vessels have high bow and sterns, this being a traditional style sampan replicates those features.

    In theory a blunt shaped bow high would be slightly easier to build, but I dont think the difference would be that much.

    This is supposed to be 3mt. It is to be used in restricted areas with and there is a limitation in dimensions. The original one should be around the same size.

  • 21 Jan 2023 20:00
    Reply # 13067115 on 13066650

    DVV wrote:

    What do you think? Opinions and questions are welcome.

    I love the lines. No one seems to make sheer lines like that anymore. I am not sure if that means it is just so much easier (and less expensive) to make straight sheer hulls in a factory, or if straight sheers are easier to sail and more sea kindly. It is obvious to me that a hull made with all uniform width planks will tend toward high ends. I would guess straight decks would be easier to walk on too (though that is of no concern in this case). What is the length? It looks like it should be 4 or 5 meters going by the motor size. 3 would be a bit short for a pointy end I think.
  • 21 Jan 2023 10:26
    Message # 13066650

    Hello.

    I'm trying to develop a reproduction of a 3mt Sampan of Hong Kong.

    This is a traditional local type. Originally used with sails, now motoring.

    I attach some pic of my design and of the original boat.

    I kept all the peculiar features of these kind of vessel: large overhangs, sampan bow, max beam quite aft, bow and transom in the water. The large opening in the transom is due to the use of a motor, but I would like to add a deep rudder (hopefully rising) and a junk rig of around 7 square meters (Halibut rig?)

    What do you think? Opinions and questions are welcome.

    DVV


    6 files
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