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The following run file demonstrates how 46 CFR 28.560 can be applied using GHS.
    
    The following run file demonstrates how 46 CFR 28.560 can be applied using
    GHS.
    
    
    proj uscgwod
    
    read fv.gf
    
    enter pm
    
    create bulwark.c    `Create a tank to model the volume between bulwarks
    ends -23.10, 35.0
    top 17.0
    bot 13.0
    out 11.0
    fit (external) hull.c
    /
    display
    write fvb.gf
    quit pm
    
    report
    
    draft 8.0
    vcg 11.0
    solve weight, lcg
    
    crtpt (1) "Flood pt" -23.1, 11.6, 17.0
    
    tank bulwark.c
    ref 0, 11.0, 17.0
    load 1.0
    type spilling
    
    angle 0 2.5 ... 90
    hmmt tank   `<--- derives an hmmt curve from bulwark.c
    
    load 0  `<--- the hmmt will be used in lieu of the tank model
    
    limit(1) residual ratio from abs 0 to abs 40 or ra0 > 1
    limit(2) residual ratio from abs 0 to fld or ra0 > 1
    
    fix trim
    ra /lim:attained
    report close
    end
    
    

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