Recent Content by Earl Boebert

  1. Earl Boebert
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    Boat In a Suitcase

    I owned a Folbot for a decade or so in Minnesota and loved it. The skin was heavy vinyl cloth. 30 minutes to assemble is an exaggeration, 15 at...
    Post by: Earl Boebert, Sep 8, 2022 in forum: Boat Design
  2. Earl Boebert
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    Is circulation real?

    If you feel in need of a break: https://xkcd.com/2664/ Cheers, Earl
    Post by: Earl Boebert, Aug 27, 2022 in forum: Hydrodynamics and Aerodynamics
  3. Earl Boebert
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    So who makes or has made a ship or boat model from wood/sctratch-built,etc?

    Here's my 36 inch Sonder boat. Rig is scale. Cheers, Earl
    Post by: Earl Boebert, Jul 5, 2022 in forum: Boat Design
  4. Earl Boebert
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    Delftship under VMware on a new Mac?

    Is anyone out there running Delftship under VMware Fusion on a new (M1, Apple Silicon) Mac? If so, what were your experiences? I used it for model...
    Thread by: Earl Boebert, Jun 14, 2022, 0 replies, in forum: Software
  5. Earl Boebert
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    AC 37 -like before but with a little less and a little more...

    Er, the COR system was instituted in 1970 when multiple challenges were made for the first time. America's Cup - A Brief History of the...
    Post by: Earl Boebert, Dec 20, 2021 in forum: Sailboats
  6. Earl Boebert
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    Paddle wheel help

    Seems like we're creeping up toward something that works like a Tesla turbine. Cheers, Earl
    Post by: Earl Boebert, Dec 17, 2021 in forum: Boat Design
  7. Earl Boebert
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    articulating rudder for sailboats

    "Live Yankee" was built with a flexible rudder. The rudder was constructed of five strips in a tapered cross section. Roger Taylor, LFH's...
    Post by: Earl Boebert, Jul 12, 2021 in forum: Hydrodynamics and Aerodynamics
  8. Earl Boebert
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    articulating rudder for sailboats

    L. Francis Herreshoff put a flexible rudder on "Live Yankee," which bent in an arc like a fish fin. Cheers, Earl
    Post by: Earl Boebert, Jul 11, 2021 in forum: Hydrodynamics and Aerodynamics
  9. Earl Boebert
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    Is circulation real?

    Ditto. Cheers, Earl
    Post by: Earl Boebert, May 13, 2021 in forum: Hydrodynamics and Aerodynamics
  10. Earl Boebert
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    Is circulation real?

    No one is obligated to explain the circulation model in terms of "classical physics," the movement of particles of pixie dust, or any universe of...
    Post by: Earl Boebert, May 13, 2021 in forum: Hydrodynamics and Aerodynamics
  11. Earl Boebert
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    Was Marchaj having us on?

    Sealioning - Wikipedia https://en.wikipedia.org/wiki/Sealioning Cheers, Earl
    Post by: Earl Boebert, Apr 28, 2021 in forum: Hydrodynamics and Aerodynamics
  12. Earl Boebert
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    Calculating displacement for scale model ship

    Well, I've done a lot of models, and if I were to tackle that project I'd start by shaping a hull in Delftship by eye to match the photos and...
    Post by: Earl Boebert, Mar 29, 2021 in forum: Boat Design
  13. Earl Boebert
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    Principles of Naval Architecture available

    I have a copy of the 11th printing of the 1939 edition dated 1958. Cheers, Earl
    Post by: Earl Boebert, Dec 1, 2020 in forum: Boat Design
  14. Earl Boebert
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    Keel Bulb Design Software

    There is an old program used by model yacht builders that calculates the volume of a bulb whose form is a rotated NACA section: Marko's bulb...
    Post by: Earl Boebert, Nov 7, 2020 in forum: Sailboats