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Post  Cox International on Thu Apr 23, 2020 6:38 pm

Also showed up today. Never seen one and what would it be worth?

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Post  davidll1984 on Thu Apr 23, 2020 8:11 pm

a pitch variable prop wit giving me idea of build 1 strange mecanisme my self y want to power 3d heli wit same sort of asembly wit aditional part smaler in size
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Post  smooth_bill on Thu Apr 23, 2020 11:33 pm

Bernie,

Interesting adapter, but appears to be only suitable for later model Pee Wee engines with non-tapered crank case nose?

Possibly a FF adapter for larger diameter propellors?

Any more details on the enclosed diagram?

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Post  Jason_WI on Fri Apr 24, 2020 12:02 am

In paid $102 and change for one. It came with a throttled pee wee. One sold on eBay within the last year that was NIP. Don’t remember what it went for and it dropped off my watch list.

https://www.coxengineforum.com/t2156-020-with-gear-reduction-ebay?highlight=Pee+wee+gear+reduction

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Post  batjac on Fri Apr 24, 2020 12:29 am

Here’s a thread with some pictures of the assembled drive:
https://www.rcgroups.com/forums/showpost.php?p=24554192&postcount=6443

The Gearhead Mark
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Post  Mike1484 on Fri Apr 24, 2020 8:25 am

Seen these used in .020 cargo event ( free flight cargo event ) . Some of the planes could lift 30 to 40 ounces swinging the larger prop with the gear unit .

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Post  Cox International on Fri Apr 24, 2020 11:45 am

Thanks everyone and so much for stating that I had never seen one before; when I participated in a like thread 8 years ago. Memory lol!
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Post  ticomareado on Fri Apr 24, 2020 6:57 pm

I vaguely remember a review of the unit in some model magazine back in the seventies. They made claims along the lines that it could swing an 8-3 prop at 7.5 K and could be made to fly .09 to .15 trainer R/C models that were built lightly.
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