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Finely polished Cox .049 with exhaust collector.




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Need some extra nose weight? Empty Need some extra nose weight?

Post  Oldenginerod Mon Oct 05, 2020 1:50 am

Interesting contraption.  I quess if you need a little extra nose weight it might do the job.   lol!
https://www.ebay.com/itm/Custom-Cox-049-Inline-Twin-Control-Line-Model-Airplane-/373248414453?_trksid=p2385738.m4383.l4275.c10

Need some extra nose weight? S-l16018
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Post  happydad Mon Oct 05, 2020 2:24 am

@Oldenginerod wrote:Interesting contraption.  I quess if you need a little extra nose weight it might do the job.   lol!
https://www.ebay.com/itm/Custom-Cox-049-Inline-Twin-Control-Line-Model-Airplane-/373248414453?_trksid=p2385738.m4383.l4275.c10

Need some extra nose weight? S-l16018

Old engine rod: those special mufflers are worth up to $50.00 here. I have seen it on eBay. Crazy to pay that much. The first engine is worth the muffler and the cylinder, the second, probably the same. Sure isn’t a twin-engine. You can see the needle for the second engine in the crankcase for the 1st. Who are they kidding? Mad Sad

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Post  Oldenginerod Mon Oct 05, 2020 4:40 am

@happydad wrote: Who are they kidding? Mad Sad

Happydad RC Plane I Love This Forum!

Well, they're not actually kidding anyone if you read the description.  They're up front with the fact that the rear cylinder is a dummy.  With the backplate and reed holder sandwiched between the two crankcases, there's probably no reason why it wouldn't run fine as a single.  Someone obviously just wanted the look of a twin.  As I said, a bit of extra weight for no practical gain.  Huh...
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Post  MauricioB Mon Oct 05, 2020 5:25 am

Well, yes, it says there that it is a simulation of "twin cylinder" then. Now, how is it supposed to be attached to a model? Would it be necessary to make a bench or extra socket?
?? .... is to take into account, since it would be necessary to think about how to hold it. Huh... What?
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Post  gkamysz Mon Oct 05, 2020 7:33 am

That will sell for far more than you'd anticipate.
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Post  davidll1984 Mon Oct 05, 2020 11:29 am

Wel just use extra part like the gtp egr valve To rc model plane wil ad weight Thumbs Up
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Post  batjac Mon Oct 05, 2020 8:08 pm

Okay, now I gotta make one and fly it.  I don't know why the person drilled all the way through the front crankcase.  Seems like the standard screws to an 8cc tank might go through the rear case and hold the two cases together.

The Copycat Mark


Last edited by batjac on Mon Oct 05, 2020 11:16 pm; edited 1 time in total
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Post  NEW222 Mon Oct 05, 2020 8:28 pm

Yes, interesting. As well, the front screws are not screwed in all the way either.
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Post  Oldenginerod Tue Oct 06, 2020 1:49 am

@batjac wrote:Okay, now I gotta make one and fly it.  I don't know why the person drilled all the way through the front crankcase.  Seems like the standard screws to an 8cc tank might go through the rear case and hold the two cases together.

The Copycat Mark
You're not the only one Mark. I've been thinking about which crankcase I can sacrifice Eyebrows It will put to good use a worn out cylinder and burned out head. I think the rear case may be reversed, with the nose section of the case machined into an air intake. As you say, you should just need to drill the rear case holes all the way through and use the appropriate size screws to join the two together.

Rod.
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