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Carl Goldberg POSTAGE STAMP mount wanted.. Cox_ba12




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Carl Goldberg POSTAGE STAMP mount wanted..

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Wanted Carl Goldberg POSTAGE STAMP mount wanted..

Post  Michpatriot Tue Jan 24, 2023 7:08 pm

Hey all,
Hoping some kind person will dig out a real Carl Goldberg Postage stamp mount or three...

Joel
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Wanted Re: Carl Goldberg POSTAGE STAMP mount wanted..

Post  batjac Tue Jan 24, 2023 10:05 pm

I'm sure that someone here can hook you up with either Roddie's bent aluminum mount or Jason's 3D printed mount.  I've made several mounts for the postage stamp engines for various uses.  But if you want just a dead simple mount for a postage stamp, all you need is a small strip of 1/16" aluminum and some #2 washers or spacers.  Won't be pretty, but it'll work.  Make the length of the strip the size you want the mount.  Probably the length of the long side of a Bee tank back.  Then, file down the center a little bit and slot it for the needle valve assembly, like the center of the C.G. mount.  Drill the four holes for the 2-56 crank case screws.  Then, at the corners of the mount you drill four holes that correspond with the Bee mounting holes.  Then attach the mount with several #2 washers or spacers between the plate and the firewall.  Just enough to clear the postage stamp venturi tube from the firewall.  I don't have a photo of one, but I'll make a terrible drawing to illustrate.  If you can figure out my drawing, you can make the mount.


Carl Goldberg POSTAGE STAMP mount wanted.. 20230124-215611



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Wanted Re: Carl Goldberg POSTAGE STAMP mount wanted..

Post  GallopingGhostler Tue Jan 24, 2023 11:32 pm

Michpatriot wrote:Hoping some kind person will dig out a real Carl Goldberg Postage stamp mount or three... Joel
Joel, Ex Model Engines has them for $11.95 US. Don't know how long they will continue to have them, so suggest ordering without wasting time.

http://www.exmodelengines.com/product.php?productid=18497&cat=268&page=1

Carl Goldberg POSTAGE STAMP mount wanted.. Dsc_0810
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Wanted Re: Carl Goldberg POSTAGE STAMP mount wanted..

Post  balogh Wed Jan 25, 2023 12:45 am

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Wanted Re: Carl Goldberg POSTAGE STAMP mount wanted..

Post  Michpatriot Wed Jan 25, 2023 7:22 pm

Got the last one!!!! THANK YOU very much!! Can't wait to try it on pressure! Gonna try a 6-3 prop, not going for blistering speed just a solid runner.
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Wanted Re: Carl Goldberg POSTAGE STAMP mount wanted..

Post  GallopingGhostler Wed Jan 25, 2023 8:30 pm

Glad to see you snap up the last one. Thumbs Up Carl Goldberg came up with that mount in the early to mid 1960's. Cox went to the postage stamp to reduce RTF production costs. Many of those RTF's had a short lifespan, leaving the owner with a donor engine.

By creating a mount would allow one to buy one of his balsa CL kits and reuse an otherwise good engine. Back then, it sold for a whopping $0.69.
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