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Cox Engine of The Month
February-2019
balogh's

"Black Lynx .049 with a Throttle, Exhaust Deflector and Nelson-Galbreath head set"



PAST WINNERS
Speed Contest 2018
CEF Traveling Engine

Win This Engine!
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World of Aviation

Thimble Drome Champion

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Shocked Re: Thimble Drome Champion

Post  happydad on Thu Dec 17, 2015 7:50 pm

crankbndr wrote:Got the body painted and cleared today even though it is very humid here and downright hot.
I used colors close to original although the black is metallic. Assembly coming soon.


Very nice. Can you paint my Shrike that color? lol!

happydad RC Plane Futaba Radio Jeep


Last edited by happydad on Fri Dec 18, 2015 2:32 am; edited 1 time in total (Reason for editing : can't spell)
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Shocked Re: Thimble Drome Champion

Post  getback on Fri Dec 18, 2015 8:08 am

Very NICE Crank , the blue metallic came out good , what paint did you use ? getback Small Cox Logo
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Shocked Re: Thimble Drome Champion

Post  crankbndr on Fri Dec 18, 2015 9:54 am

Thanks, the paint is Dupli-Color Perfect Match (its a Ford color) and their clear in the auto stores, definitely not fuel proof but my shelf queen won't care.
I have used that two part K2 clear over Duple-Color in the past and it should be fuel proof but haven't tested it yet.
I also tried Brownells Aluma hyde clear that is so-posed to be epoxy based over Duple-Color and it wiped right off with 30%.
Still looking for a good clear to go over Duple-Color, K2 looks promising but need to test it.
Very happy with the body, I was lucky it had no cracks dings or dents.


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Shocked Re: Thimble Drome Champion

Post  ARUP on Sat Dec 19, 2015 7:52 pm

Hey... you... dum azz... that car looks great! I laughed so hard at your 'no gloves' text! This Site Rocks!
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Shocked Re: Thimble Drome Champion

Post  crankbndr on Sun Dec 27, 2015 8:38 am

Had a hard time finding phillister head, phillips drive, black oxide replacement machine screws. Found some NOS eBay.
http://www.ebay.com/itm/281870237022?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

That is all I needed to complete the Real McCoy



The early cars had a short needle with slotted head, you had to insert screwdriver to adjust.



McCoy vs Thimble Drome

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Shocked Re: Thimble Drome Champion

Post  OVERLORD on Sun Dec 27, 2015 8:57 am

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Shocked Re: Thimble Drome Champion

Post  getback on Sun Dec 27, 2015 9:58 am

Fantastic job on the restoration of the McCoy !!! I guess you got another conn. rod for the engine ? My patient's is just shot to heck I guess// I am not having as much fun as I had intended in my older age lol! I plan to work on that though... This Site Rocks! getback Huh...
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Shocked Re: Thimble Drome Champion

Post  batjac on Sun Dec 27, 2015 12:30 pm

crankbndr wrote:

I been wondering about you avatar, I've seen it before but can't place it. Looked through all my old papers, its pretty cool, where is it?

Oops!  Sorry, I didn't see this question back when you originally asked it.  That's from the troubleshooting chart in the instruction booklet from a mid-70's Cox PT-19.

The Historian Mark
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Shocked Re: Thimble Drome Champion

Post  akjgardner on Sun Dec 27, 2015 2:45 pm

Hey Crank,The car looks great. Love the colors
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Shocked Re: Thimble Drome Champion

Post  ARUP on Mon Jan 04, 2016 8:07 pm

Has anyone here built the Cleveland 'Speedster' Aircar from Cleveland Airline Model plans? Its catalog number is AU-7. <www.clevelandairline.com>
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Shocked Re: Thimble Drome Champion

Post  getback on Tue Jan 05, 2016 9:01 am

ARUP wrote:Has anyone here built the Cleveland 'Speedster' Aircar from Cleveland Airline Model plans? Its catalog number is AU-7. <www.clevelandairline.com>
Couldn't get that link to work is this it http://www.hippocketaeronautics.com/hpa_plans/details.php?image_id=3232 Download //open , getback Babe Bee .049
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Shocked Re: Thimble Drome Champion

Post  Marleysky on Tue Jan 05, 2016 5:23 pm

Try this link: http://www.clevelandairline.com/ASP/PRODUCT.asp

It's a prop driven car, don't know if it's a balsa kit or solid block, no details, no pictures just the sketch of the car.

GoTo : link above, then select "product catalog" on left hand side, then "secondary"
Product line, then " industrial training". It is in there......
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Shocked Re: Thimble Drome Champion

Post  ARUP on Tue Jan 05, 2016 9:08 pm

Yes... that's the link. Click on 'featured releases' then click on the 'next' button two times in succession and you'll see it. You purchase plans only. Maybe, back in the day, a kit of some sort was offered. I just made a large purchase from them because you can get a 30% discount right now. I should have gone ahead and let 'curiosity kill the cat', or, rather, the cat's bank account, and purchased a set of the plans.
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Shocked Re: Thimble Drome Champion

Post  getback on Wed Jan 06, 2016 8:32 am

That's a pretty wild looking car but they don't give you much to go on other than that small pic. getback  Babe Bee .049 Flying
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Shocked Re: Thimble Drome Champion

Post  crankbndr on Sat Jul 09, 2016 9:03 am

Picked up my first Thimble Drome O-Forty-Five Special, out sniped two other bidders. It looks to have not been run much. I look for road rash on the top of the seat and exhaust and for marks on the engine from disassembly, this one looked good.

http://www.ebay.com/itm/Cox-Thimble-Drome-Champion-Race-Car-Original-/191907327960?_trksid=p2047675.l2557&ssPageName=STRK%3AMEBIDX%3AIT&nma=true&si=ZqpR7o90JFanbsyIsOn3YXtl5w4%253D&orig_cvip=true&rt=nc



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Shocked Re: Thimble Drome Champion

Post  crankbndr on Sat Jul 09, 2016 9:35 am

The body looks like original paint, it will be stripped and painted. I believed they came in red, blue, white and yellow.
I'm thinking yellow.

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Shocked Re: Thimble Drome Champion

Post  crankbndr on Sat Jul 09, 2016 9:52 am

This little jewel of an engine is frozen good, that plate with a handle that is covering the crankcase is turned almost 90 degrees and is an exhaust throttle. The handle is bent but think it can be straightened. When closed it seals the crankcase. Off to the croch pot for some cooking.






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Shocked Re: Thimble Drome Champion

Post  crankbndr on Wed Jul 13, 2016 11:56 am

This .045 was the hardest engine to free up i've ever seen. It did two 8 hour cooks in the crock pot, soaking in liquid wrench and Rem oil and three rounds with a heat gun.
On the third round of heat gun I started trying degreaser and brake rotor cleaner and it broke loose but wasn't good for the aluminum especially the cast case.
It has .045 Spitfire top end, even the glow plug has Spitfire stamped on it. The case casting is complex, it has separate chambers for intake and exhaust.

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Shocked Re: Thimble Drome Champion

Post  crankbndr on Wed Jul 13, 2016 12:03 pm

The air intake is through a hollow axle and this tire is free wheeling. There is a filter in the axle.




The drive wheel is splined to the axle

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Shocked Re: Thimble Drome Champion

Post  crankbndr on Wed Jul 13, 2016 12:15 pm

I been using Duple-color lacquer but they didn't have the color yellow I wanted so I used Rustolium enamel. The enamel was much harder to work with and had to strip the paint after the first job because of all the flaws, the second time I primed and wet sanded twice before color and it came out much better. Still got to paint seat black.
Got repo stickers.


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Shocked Re: Thimble Drome Champion

Post  crankbndr on Sat Jul 16, 2016 1:14 pm






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Shocked Re: Thimble Drome Champion

Post  OVERLORD on Sat Jul 16, 2016 2:28 pm

Great restoration Crank, that looks like new. I read with much interest your description of the engine. Thanks for posting!!
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Shocked Re: Thimble Drome Champion

Post  crankbndr on Sat Jul 16, 2016 4:02 pm

Hi, thanks! I really do enjoy working on these old models, great hobby for me.
I was going to take the engine completely apart but chickened out, I might go for it still and post photos here.
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Shocked Re: Thimble Drome Champion

Post  crankbndr on Thu Jul 21, 2016 9:20 am

I found photos of a dissembled .045 right here on our own forum, member altidsulten posted these photos

https://www.coxengineforum.com/gallery/Personal-album-of-altidsulten-cat_u200.htm


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Shocked Pusher

Post  fyin on Thu Aug 11, 2016 3:37 am

Hi Crank,

I just bought a Thimble Drome car but bought wrong version " pusher " and planning to modify it to run in engine, can you post some inside (hosing with gearbox / eng pics of your car for my reference??
Many thanks
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Shocked Re: Thimble Drome Champion

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