B2 Knock Down

Discussion in 'Stability' started by SuperPiper, Mar 30, 2007.

  1. SuperPiper
    Joined: Jan 2003
    Posts: 362
    Likes: 5, Points: 18, Legacy Rep: 58
    Location: North Of Lake Ontario

    SuperPiper Men With Little Boats . .

    I am 2 months behind on the Seaworthy thread. On January 26, MikeJohns used the phrase "B2 knock down". I have seen that terminology before on this forum. But, googling the term brings zero results.

    What is this nomenclature? What is a B2 knock down? How many degrees of knock down are there?

    Help.
     
    1 person likes this.
  2. Guillermo
    Joined: Mar 2005
    Posts: 3,644
    Likes: 185, Points: 63, Legacy Rep: 2247
    Location: Pontevedra, Spain

    Guillermo Ingeniero Naval

    A B2 knockdown is a 180 deg. one. A B1 is a 90 deg. This is what I understand.

    Cheers.
     
  3. SuperPiper
    Joined: Jan 2003
    Posts: 362
    Likes: 5, Points: 18, Legacy Rep: 58
    Location: North Of Lake Ontario

    SuperPiper Men With Little Boats . .

    Guillermo:

    You are good! Thanks for that.
     

  4. yipster
    Joined: Oct 2002
    Posts: 3,486
    Likes: 95, Points: 58, Legacy Rep: 1148
    Location: netherlands

    yipster designer

    a pic from "seaworthiness, the forgotten factor" by Marchaj, a book we should all read
    he, or quoting Froude, writes for example "stability is a double agent and therefore not to be trusted"
     

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