Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    Name or NavList Code:
    Email:
       
    Reply
    Re: Revisiting hull pressure wave
    From: Bill B
    Date: 2005 Jan 25, 22:34 -0500

    > try google for "Froude number".  it's a "deep" subject, ha ha.
    >
    Thanks for the lead. So far results appear more appropriate to naval
    architects, and on the surface appear to deal with bow waves, as opposed to
    the underwater/downward component.  Over my head.
    
    Given the hull speed = sqrt of LAW x 1.3 can be broken by racing sleds, yet
    it remains a good rule of thumb.  Its simplicity is what I seek.  A rule of
    thumb for LAW when speed vs. theoretical hull speed is impeded by the
    downward vertical pressure wave striking the bottom.
    
    Bill
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

    Enter the email address associated with your NavList messages. Your NavList code will be emailed to you immediately.
    Email:

    Email Settings

    NavList ID Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site