Construction of a trailer yacht Lion 550 Adrenaline

Discussion in 'Boat Design' started by Unik, Jul 18, 2017.

  1. Unik
    Joined: Dec 2015
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    Location: Ukraine

    Unik Senior Member

    We begin construction of the yacht Lion 550 Adrenaline here we will describe in detail the progress of the construction of a new boat.

    The boat is built by an amateur, we will show all the stages of construction, from cutting the plywood to launching the boat on the water so I hope the topic will be interesting.

    Main dimensions Data
    Length overall 5.5 m
    Waterline length 5.5 m
    Maximum width 2.50 m
    Overall width 2.08 m
    Draught keel 0.25/1.5 m
    Sail area 22
    Ballast 250 kg.
    Full displacement 1.0 t.
    Capacity 4 persons.


    [​IMG]
     
    Gunnar Sommerlund likes this.
  2. Ngenjuh
    Joined: Jul 2017
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    Location: Indonesia

    Ngenjuh Junior Member

    wow, it's look beautiful for me. what the name of software you use to make the drawing?
     
  3. Unik
    Joined: Dec 2015
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    Location: Ukraine

    Unik Senior Member

    If you apply a little skill, Rhinoceros can work miracles.
     
  4. Unik
    Joined: Dec 2015
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    Unik Senior Member

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  5. rwatson
    Joined: Aug 2007
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    Location: Tasmania,Australia

    rwatson Senior Member

    Looks like a lot of fun.

    One question - you are using "chine logs" in your designs that need planing and shaping.

    What are your thoughts on "stitch and epoxy" only, for the chines?

    This would avoid all the fitting and shaping work required for the longtitudinal timbers.
     
  6. Unik
    Joined: Dec 2015
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    Unik Senior Member

    The Lion 550 is built using the technology of stitch and glue.
    The parts are sewed together by plastic ties, after which the joint is pasted with a fiberglass tape.
     
  7. rwatson
    Joined: Aug 2007
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    Location: Tasmania,Australia

    rwatson Senior Member

    Thats good. The Lion 800 boat looked like a bit more work using chine stringers



    . Lion850.png
     
  8. Unik
    Joined: Dec 2015
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    Location: Ukraine

    Unik Senior Member


    Yes, you're right in the Lion 800 - 870 is really much more work, but after the completion of construction the builder will receive more boats. )))
     
  9. Unik
    Joined: Dec 2015
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    Location: Ukraine

    Unik Senior Member

    All frame frames have been assembled, the surface has been polished in the place where the puzzles are joined.We will seek to arrive at these values

    More info
     

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  10. Rumars
    Joined: Mar 2013
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    Location: Germany

    Rumars Senior Member

    Nice boat Unik. May I ask what plywood are you using? Looks like spruce (picea abies) in the photos.
     
  11. Unik
    Joined: Dec 2015
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    Unik Senior Member

    We use for construction waterproof birch plywood
     
  12. Rumars
    Joined: Mar 2013
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    Location: Germany

    Rumars Senior Member

    Thanks. I tought you found something lighter than birch and with the knot pattern I tought you are using Wisa spruce. But I suppose the boat is designed for birch ply and can take the weight.
     
  13. Unik
    Joined: Dec 2015
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    Unik Senior Member

    It is possible to compact other kinds of plywood, if the plywood will have less weight, this will only improve the characteristics of the boat.

    The main thing that plywood was water resistant.
     
  14. Rumars
    Joined: Mar 2013
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    Location: Germany

    Rumars Senior Member

    Thanks. Keep up the good work and keep us posted.
     

  15. Unik
    Joined: Dec 2015
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    Location: Ukraine

    Unik Senior Member

    Thank you for your interest in our work, I will continue to publish news about construction.
     
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