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Sapphire ~ Vintage EDF model by Peter Goldsmith (Build Thread by JimD)

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  • Sapphire ~ Vintage EDF model by Peter Goldsmith (Build Thread by JimD)

    Are you depressed about the FAA 400' ceiling news, then here is a little gem to brighten your attitude!

    Peter has designed this model combining vintage looks with EDF propulsion and it is a (jet) blast to fly (around on the deck).

    The first run kit was delivered to us at the Muncy, PA event last month and we started construction as soon as we got home...sixteen days later, a model ready to fly!!!!!

    Span is 8', but weight is minimal for its size.


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    A Site for Soar Eyes

  • #2
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    A Site for Soar Eyes

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    • #3
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      A Site for Soar Eyes

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      • #4
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        A Site for Soar Eyes

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        • #5
          Items we used to complete our model (all parts available through Jeremy Hartmann (aka Swiss1) at The Model Box 2.0):

          FMS 64mm EDF (FMMDF004)

          FMS 40 amp ESC (FMMPAC113)

          Spektrum (2) A5060 servos (SPMSA5060)

          E-flite 3-cell 11.1 volt LiPo Battery (EFLB32003S40)

          Hangar 9 UltraCote (3 rolls)



          A Site for Soar Eyes

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          • #6
            Jim, on the 1/16 balsa TE on the wing, did you cut the root to wing tip taper to be right where the rib ends? (the plan pattern is a bit oversized so I'm trying to see how how sized yours) And where the two sheets meet did you bevel the edges of the sheets so that they fit together in a nice clean tapered edge?

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            • JimD
              JimD commented
              Editing a comment
              If you look carefully at the plan, there is a side view of the stab/elevator. Note that the inside edges of the 1/16" trailing edge sheeting meet each other right at the end of the ribs and are finished so as to give a 1/8" thick trailing edge. You could build the wings as you describe and end up with a 1/16" trailing edge. Considering the size of the model, the 1/8" thick trailing edge looks like a knife edge from a few feet away. Having a thicker trailing edge makes covering and handling a bit easier too.

          • #7
            Looks great. I just got started on mine a couple nights ago. I appreciate all the photos.

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            • JimD
              JimD commented
              Editing a comment
              Let me know if you have any questions. 👍

          • #8
            Maiden flight success!!!

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            A Site for Soar Eyes

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            • #9
              Looking good Jim

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              • #10
                How did you color your wood black Jim? is that a stain or something?

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              • #11
                So I have mine all framed up. Still a few items to clear on the punch list but she looks great. Looking forward to getting it finished.

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                • JimD
                  JimD commented
                  Editing a comment
                  Nice work!!!
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