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Post  rsv1cox Mon Jan 10, 2022 10:36 am

It has a brother.

Got to looking around my box of Wen Mac engines checking for power options for one of my P-26's and discovered these two. Looks like they have interupter pin's on the drive plate and riveted on extra mounts. One had tubing stuffed down the intake. One off, I would say someone was fooling around, but two? - has to be factory.

Any ideas? Speciality built for one of their models? Why the pin?

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Post  Marleysky Mon Jan 10, 2022 2:36 pm

Not a BIG mystery, but a short lived production run of the " Rubber Band" Starter. A "O" ring was used to catch on the protruding pin, and was mounted in the Little brass thingy on the bottom lug. When I get back to my Lap top I can copy and paste the paragraph or two describing the set-up. It's on the Facebook pages of the 049 collector ( Mark Boesen's site)
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Post  rsv1cox Mon Jan 10, 2022 2:48 pm

Thanks Rene, that has bugged me for a long time. I scoured the internet looking for an answer but didn't find one. I think Mark's site is on Yahoo and I don't go there.

Bob
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Post  Marleysky Mon Jan 10, 2022 6:13 pm

EEEK!  MicroSoft and Google Chrome don’t wanna play nice with each other! The PowerPoint file won’t open on my Lap top. Here is a screen grab picture of the page with the info on the O ring starter. ( from my IPhone!)
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Post  Marleysky Mon Jan 10, 2022 6:26 pm

Here's a picture of it installed...and the CEF thread it came from!!  
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https://www.coxengineforum.com/t1449-049-rtf-plastic-airplanes
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Post  getback Tue Jan 11, 2022 8:29 am

Well that is pretty wild i think but doable Laughing
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Post  rsv1cox Tue Jan 11, 2022 2:47 pm

Thanks Rene,

2012, a couple of years before my time here.

I'm surprised that the concept lasted two years.  Not practical at all.  I tried it with several different O rings to no success.  What worked best was a rubber band from one of my rubber band powered locomotives.  

Never did show these Wen Mac's much affection.  Although I have ran one or two but never one with the baffled exhaust.  Kind of eager to do that.  

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I swapped some needles and prop nuts aound to get some continunity within types and mounted them on stands.  Affection long denied. Smile

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Sometimes you get a boo-boo working with this stuff. Sad  I was going to include a picture of the blood soaked toilet paper liquid stopper but considered it too gruesome.  Smile  I'm pointing toward the culprit.

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Some time ago Mark B sent me a DVD with catalogs regarding the Wen's.  I was hoping that one would have a description about the O ring starter, but not.

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Edit add;

Searched flex-o ring and found one of my old threads. Nothing about the rubber band starter though.

https://www.coxengineforum.com/t7371-wen-mac-mkii-049
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Post  Marleysky Tue Jan 11, 2022 7:39 pm

Yup, the more I learn, the more I realize How much I don't know!! You have done justice to those WenMac/AMF/Testors, they look real nice cleaned and mounted like that.

PS: was it the sharpe edge of the plexiglass that got ya, or was it a prop stirke on the roto-matic starter?
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Post  rsv1cox Wed Jan 12, 2022 7:36 am

Marleysky wrote:Yup, the more I learn, the more I realize How much I don't know!! You have done justice to those WenMac/AMF/Testors, they look real nice cleaned and mounted like that.

PS: was it the sharpe edge of the plexiglass that got ya, or was it a prop stirke on the roto-matic starter?

A "risk taker" is a leading indicator for DUMB, and I'm a risk taker.  

Instead of using a clamp I drilled the plexiglas backplate holding it by hand.  Worked fine for the small 3/64" brass mounting screw holes, but when I drilled the 1/4" hole for the rivet relief it caught spinning the backplate back into my finger slapping it around a bit, didn't do my sacrificial board much good either.  Scarred up the backplate too.  Hurt a "whole" lot.  Smile

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The pitiful part is the clamp was just an arm reach away.

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Funny, the first engine I ever mounted was a Wen Mac with this overly large backplate.  Easy to remember.  

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