high speed boat design

Discussion in 'Boat Design' started by srinath88, Feb 26, 2015.

  1. srinath88
    Joined: Jul 2014
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    srinath88 Junior Member

    hi i want to know good range of VCG for 1.5 to 2.5 m(LOA) boat. Boat will carry 100 to 250 kg it is planing type boat.

    and please tell me idea(accuracy) of below software to use 1.5 to 2.5 m (LOA) boat
     

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  2. daiquiri
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    Location: Italy (Garda Lake) and Croatia (Istria)

    daiquiri Engineering and Design

    Interesting SOR. What kind of boat is it?
     
  3. Alik
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    Alik Senior Member

    Something like this? This one is in FRP. Photo taken in SriLanka...
     

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  4. srinath88
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    srinath88 Junior Member

    it may be Autonomous vehicle or Unmanned vehicle
     
  5. srinath88
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    srinath88 Junior Member

    it may be Autonomous vehicle or Unmanned vehicle
     
  6. daiquiri
    Joined: May 2004
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    Location: Italy (Garda Lake) and Croatia (Istria)

    daiquiri Engineering and Design

    Since I can't see what would be a civil use of an autonomous high-speed vessel of that size, I guess it is intended for military use?
     
  7. Alik
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    Alik Senior Member

    Smuggling. It is civil use as well :D
     
  8. srinath88
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    srinath88 Junior Member

    this design is not for military purposes. it is for university project :mad:
     
  9. Alik
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    Alik Senior Member

    srinath88, to be serious, there is 'no good range of VCG' (vertical center of gravity). VCG should be such to provide adequate stability. Stability is characterized by set of criteria, there is no just one criteria making VCG good or bad.

    For USV boat of considered size, I would assume the boat should be self-righting. So the design flow is: sketch the GA, sketch the geometry in 3D including above-deck volumes, prepare preliminary table of weights with displacements and CG position, calculate the stability. Adjust above deck volume for self-righting, adjust table of weights and repeat the process again.

    We used pole with buoyancy on self-righting radio-controlled model, maybe this will help.
     

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  10. srinath88
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    srinath88 Junior Member

    thank you for answer what about "Planing new.xls" accuracy for 1.5 to 2.5
     
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