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Cox original fuel formulas

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Cox original fuel formulas

Post  roddie on Tue Feb 17, 2015 6:09 pm

I recently joined a Facebook group "Control Line Enthusiasts" and saw these posted. My apologies if this is old news. I couldn't find any info here.. and thought it appropriate to share.

10% nitro



15% nitro



30% nitro

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Re: Cox original fuel formulas

Post  RknRusty on Tue Feb 17, 2015 8:42 pm

Hi Roddie, yeah we've posted those a few times here, Mark Boesen, me and others, but thanks anyhoo. It's interesting to see those old documents. I never knew Cox included a bit of Dow synthetic in the mix till I saw those. 18% castor and 2% Dow lube XA-1180-6. Probably way outclassed by modern additives now.
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Re: Cox original fuel formulas

Post  Mark Boesen on Tue Feb 17, 2015 8:46 pm

I think Joe posted those a couple years ago and they've traveled around the internet and back to here! I even see somebody is trying to sell them on eBay.
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Re: Cox original fuel formulas

Post  Admin on Tue Feb 17, 2015 9:13 pm


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Re: Cox original fuel formulas

Post  roddie on Wed Feb 18, 2015 6:29 am

It would be interesting to know where Cox originally obtained their castor oil.. being that they ordered thousands of gallons at a time. The synthetic element in their mix was stated to be labeled "Klotz KL-201". Sig's website references "Baker's AA" castor as being available separately.. but I thought that they used Klotz's "Benol" castor in their blended fuels? Is "Baker's AA" a Sig trademark? I couldn't find any info on it otherwise.

This makes me curious as to where Hobbico sources their ingredients for the newly re-formulated Cox Super fuel.

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Re: Cox original fuel formulas

Post  jsesere on Wed Feb 18, 2015 9:14 pm

Your correct Mark. I got mine several years back from an former Cox RD guy in Bend Oregon along with a box of new Tee Dee .051 parts. I shared them on a couple of sites and have been selling them on EBay ever since to CEF non believers LOL.
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Re: Cox original fuel formulas

Post  balogh on Thu Feb 26, 2015 3:21 pm

Then I happen to be one of your customers
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Re: Cox original fuel formulas

Post  balogh on Thu Feb 26, 2015 3:26 pm

BTW does anybody know what was the purpose of the 2% Dow additive? I Google the product code but could only find something close to the XA1180....which is used in 2-stroke motorcycle engines nowadays.
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Re: Cox original fuel formulas

Post  Mark Boesen on Thu Feb 26, 2015 3:34 pm

Joe, thanks again for sharing these with us!
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Re: Cox original fuel formulas

Post  jsesere on Thu Feb 26, 2015 3:42 pm

You're welcome. I wanted to post them in as many places I could think of before I started offering them to the masses.
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Re: Cox original fuel formulas

Post  getback on Fri Feb 27, 2015 6:06 am

Roddie , this add is 1920 http://www.amazon.com/1920-Bakers-Castor-Aeronautical-Motors/dp/images/B005DGZRMM    Sig looks like 1951   http://www.sigmfg.com/ Baker was in biss. 30 yrs before sig Go figure
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Re: Cox original fuel formulas

Post  roddie on Fri Feb 27, 2015 7:37 am

getback wrote:Roddie , this add is 1920 http://www.amazon.com/1920-Bakers-Castor-Aeronautical-Motors/dp/images/B005DGZRMM    Sig looks like 1951   http://www.sigmfg.com/  Baker was in biss. 30 yrs before sig Go figure

Thanks Eric, I enjoy saving images of "Old Time" ads like the Baker's Castor one. They make interesting "wallpaper" for my laptop. I typically change my wallpaper every few days. Most of the images are small though. My all-time favorite Cox-related image, is the cover of their 1991 product catalog.



Mark Boesen generously emailed me this copy of the image.. after I reminisced of it in a thread awhile ago. I had misplaced my copy years ago.. but found it recently.

I really enjoy building in miniature "in general".. and have loved seeing "dioramas" and dollhouse-scale work since I was a kid.

Looking at the above image.. imagine building a back-drop hangar wall for displaying your favorite Cox-powered airplane; using a few random resized "ad-images" as wall-posters. Use any old piece of hardboard.. cut a "floor" piece and a "back-wall" piece. Paint the floor grey and the wall.. whatever color you want. The wall can be repainted to suit.. just remove the posters, re-paint.. and put up different ones if you want.
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Re: Cox original fuel formulas

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