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     1. 04:14 AM - Re: Roll Bar (Tony & Marilyn Spicer)
 
 
 

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Time: 
04:14:06 AM PST US
From: 
"Tony & Marilyn Spicer" <sonex32@earthlink.net>
Subject: 
Re: Roll Bar
      
      Ivan,
      
      With a proper weld I don't think the joint will be any weaker than the 
      base metal. On mine, the U bend is mild steel and the straight legs and 
      braces are 4130. After all the pieces fit properly, I safety wired the 
      assembly to a plywood board for tack welding.
      
      Tony
        ----- Original Message ----- 
        From: H.Ivan Haecker 
        To: rv4-list@matronics.com 
        Sent: Monday, February 25, 2008 12:24 AM
        Subject: Re: RV4-List: Roll Bar
      
      
        Thanks to both of you for your responses. One other question: When 
      attaching the curved top piece to the two straight side bars, is a short 
      piece of tubing inserted before joining the pieces to strengthen what 
      would otherwise be a weaker butt joint?
      
        Ivan Haecker    -4    1439 hrs.    So. Cen. Tx
          ----- Original Message ----- 
          From: Tony & Marilyn Spicer 
          To: rv4-list@matronics.com 
          Sent: Saturday, February 23, 2008 10:34 AM
          Subject: Re: RV4-List: Roll Bar
      
      
          Ivan,
      
          I made one from scratch using a U tube and two straight pieces of 
      tubing. Draw what you want full size and it will be easy to cut the U 
      tube in the right place. You'll have to Google the U tube, as I no 
      longer have the URL.
      
          
      http://picasaweb.google.com/tonyboytoo/RV3BFuselage/photo#513684489498592
      9762
      
          Tony
      
            ----- Original Message ----- 
            From: H.Ivan Haecker 
            To: rv4-list@matronics.com 
            Sent: Saturday, February 23, 2008 1:25 AM
            Subject: RV4-List: Roll Bar
      
      
            Does anyone have any info on how modify the original Van's roll 
      bar on an rv-4 to the style that has a rounded top. I have seen these on 
      a few -4's and HRII's over the years and wish to make one for an F-1 
      rocket with a tip over canopy. Perhaps someone knows of a supplier?
      
            Thanks.
      
            Ivan Haecker    -4    1437 hrs.  S. Cen. Tx
      
      
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