Free Internet Rowing Model 2.32 Released

Discussion in 'Software' started by Leo Lazauskas, Mar 25, 2015.

  1. Leo Lazauskas
    Joined: Jan 2002
    Posts: 2,696
    Likes: 151, Points: 63, Legacy Rep: 2229
    Location: Adelaide, South Australia

    Leo Lazauskas Senior Member

    The Free Internet Rowing Model (FIRM) is a program for Windows-based
    computers that predicts hull resistance, velocity, acceleration, and
    yawing moments of rowing shells. Users report that it works under WINE
    on Macs and Linux computers.

    The FIRM page is at:

    FIRM version 2.32 contains over 40 example hulls (with offsets) to
    help you choose a racing shell or to help you start your own designs.
    The hull offset format is identical to that used by Michlet and Flotilla.
    DelftShip can be used to design hulls and to create offsets for FIRM,
    Michlet and Flotilla.

    The fixed seat hulls and example have been omitted from the new version
    because I do not have good experimental results to validate and verify
    FIRM predictions.

    New output files contain many useful calculations, e.g. hull width
    at catch for stroke seat and at release for bow seat help to ensure
    that rowers will fit into the shell.


    "Atkinson energy balance diagrams" (like those at Bill Atkinson's
    site can be
    created using values in the summary.csv output file. FIRM estimates
    of the internal power lost to body flexing (Box G) are lower than in
    Atkinson's original work, but closer to those of Kleshnev and
    Hofmijster et al. See Section 8 of the FIRM manual for details and

    Attached Files:

    Last edited: Mar 30, 2015
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