missing Graupner Cumulus Wing Rods - RCCanada - Canada Radio Controlled Hobby Forum
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Old 11-29-2019, 08:42 AM   #1
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missing Graupner Cumulus Wing Rods

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I was given a beautiful Graupner Cumulus from the 1970s, but unfortunately the previous owner had lost one of the wing joining rods (the other 3 are all present and correct!).

I would be very grateful if anyone has a spare wingrod or set of wingrods for a Graupner Cumulus from the 1970s/1980s, as I would love to get this vintage glider flying again!
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Old 11-29-2019, 10:50 AM   #2
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Re: missing Graupner Cumulus Wing Rods

Are they steel rods ? Straight ? If so just make one up out of steel music wire, same diameter ? Or depending of the diameter, you now could use carbon fibre rods or tubes to save weight.

And where can you find that ? try your local hobby store or eBay .

Last edited by stegl; 11-29-2019 at 11:21 AM.
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Old 12-02-2019, 01:57 PM   #3
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Re: missing Graupner Cumulus Wing Rods

It depends on the diameter, but how about Arrowshafts?
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Old 12-03-2019, 09:13 AM   #4
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Re: missing Graupner Cumulus Wing Rods

I have a Cumulus & the wing rods have been made as part of the wing so can't be removed. According to my micrometer they are .177 inches which translates to 4.5 mm. I built different wings for mine & used the best fitting size od music wire inside brass tubing for them. Both were readily available at the hobby shop. I suspect I soldered them together but epoxy or Loctite should be other strong options.

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