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  1. born2sail

    Canting keel forces

    MEMO To: SA Engineering Dept From: SA Non-engineering Dept Subject: Ram Differences & Similarities Are the rams and canting systems on the AA boats somewhat similar or dramatically different that those employed by the other boats? And did everybody start out with Ti rams or were the...
  2. born2sail

    Canting keel forces

    Also, with regard to the harmonics, there's a rudder, strut and board "singing" at the same time. Is it possible that the different "songs" could be causing a problem?
  3. born2sail

    Canting keel forces

    dtoc, et al, did you read today's article on the movistar website. A few details about the rams are included.
  4. born2sail

    Canting keel forces

    Many moons ago, CalTech produced a distance learning program called The Mechanical Universe. If anybody has access to the DVD's, Disc 17 has a great piece on waves and the Aolean effect involved in Galloping Gerdy's collapse. Here's the index of the disk: Laser Disk #17 - Waves 1: Opening...
  5. born2sail

    Canting keel forces

    Sucky, would that be Galloping Gerdy you're referring to? If so, it's the Tacoma Narrows Bridge.
  6. born2sail

    Canting keel forces

    First off, thanks dtoc, this is one of the best threads ever. I didn't think starting the day with so much math (or whatever you call it) could involve so little pain. Not being an engineer, maybe this question has been answered in some other lingo: If the fairing on the strut is out of...
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