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Cox Engine of The Month
July-2024
robot797's
![](https://i.servimg.com/u/f95/15/46/86/41/3_robo10.jpg)
"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
robot797's
![](https://i.servimg.com/u/f95/15/46/86/41/3_robo10.jpg)
"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
Curious Cox 350 Babe Bee
Page 1 of 1
Curious Cox 350 Babe Bee
Turned down cylinder fins, high compression head, #3 grooved cylinder with throttle ring, 2 milar reeds. Made up?
Two top fins gone, nicely done probably on a lathe. Too nice to be filed.
As found, ebay $14.50 9 bids.
![Curious Cox 350 Babe Bee Curiou10](https://i.servimg.com/u/f62/19/15/28/33/curiou10.jpg)
![Curious Cox 350 Babe Bee Cox_3513](https://i.servimg.com/u/f62/19/15/28/33/cox_3513.jpg)
Cleaned up.
![Curious Cox 350 Babe Bee Cox_3510](https://i.servimg.com/u/f62/19/15/28/33/cox_3510.jpg)
I thought the reed felt a little stiff, cleaned it and when I picked it up it separated into two reeds.
![Curious Cox 350 Babe Bee Cox_3514](https://i.servimg.com/u/f62/19/15/28/33/cox_3514.jpg)
I tried to ID it using the Cox handbook and found two possibles.
No throttle ring.
![Curious Cox 350 Babe Bee Cox_3512](https://i.servimg.com/u/f62/19/15/28/33/cox_3512.jpg)
Throttle ring.
![Curious Cox 350 Babe Bee Cox_3511](https://i.servimg.com/u/f62/19/15/28/33/cox_3511.jpg)
I think it's just a 350-1 that someone had some fun with. Two reeds, some hop up/hop down mod? or more probably just stuck together when installed.
Two top fins gone, nicely done probably on a lathe. Too nice to be filed.
As found, ebay $14.50 9 bids.
![Curious Cox 350 Babe Bee Curiou10](https://i.servimg.com/u/f62/19/15/28/33/curiou10.jpg)
![Curious Cox 350 Babe Bee Cox_3513](https://i.servimg.com/u/f62/19/15/28/33/cox_3513.jpg)
Cleaned up.
![Curious Cox 350 Babe Bee Cox_3510](https://i.servimg.com/u/f62/19/15/28/33/cox_3510.jpg)
I thought the reed felt a little stiff, cleaned it and when I picked it up it separated into two reeds.
![Curious Cox 350 Babe Bee Cox_3514](https://i.servimg.com/u/f62/19/15/28/33/cox_3514.jpg)
I tried to ID it using the Cox handbook and found two possibles.
No throttle ring.
![Curious Cox 350 Babe Bee Cox_3512](https://i.servimg.com/u/f62/19/15/28/33/cox_3512.jpg)
Throttle ring.
![Curious Cox 350 Babe Bee Cox_3511](https://i.servimg.com/u/f62/19/15/28/33/cox_3511.jpg)
I think it's just a 350-1 that someone had some fun with. Two reeds, some hop up/hop down mod? or more probably just stuck together when installed.
rsv1cox- Top Poster
Posts : 10851
Join date : 2014-08-18
Location : West Virginia
Curious Baby Bee
Nicest looking used back plate I've seen in quite a while.
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-04
Location : NC
Re: Curious Cox 350 Babe Bee
Well, it’s really neither of the two. It could have possibly been one of them at one time, but it’s been modified into something else. Something to clean up or use for parts or fly with without worry.
Enjoy!
Enjoy!
Cribbs74- Moderator
Posts : 11904
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Re: Curious Cox 350 Babe Bee
ticomareado wrote:Nicest looking used back plate I've seen in quite a while.
Yes, surprising considering how castor locked the reed was. I was expecting a mess when I separated the plate from the tank.
----------------------
I couldn't find anything else in the book that even came close Ron.
It's a standard #3 cylinder polished for a throttle ring with a high compression head. Perhaps it was grafted on a straight nose non grooved case that at one time housed a starter spring.
I rebuilt it the same only replacing gaskets, eliminating one of the reeds, and adding a spinner.
The most curious part is the elimination of the two top cylinder fins. That's a lot of effort just to clean up some damaged fins and the result is more bad than good cooling wise.
![Curious Cox 350 Babe Bee Finish12](https://i.servimg.com/u/f62/19/15/28/33/finish12.jpg)
Bob
rsv1cox- Top Poster
Posts : 10851
Join date : 2014-08-18
Location : West Virginia
Re: Curious Cox 350 Babe Bee
Perhaps a home job to use on an RC boat with throttle and heat sink head?
The Stumped Mark
The Stumped Mark
batjac- Diamond Member
Posts : 2356
Join date : 2013-05-23
Age : 61
Location : Broken Arrow, OK, USA
Strange Baby Bee
Good guess but I'd go with a heat sink head R/C car before an R/C boat on this one. A stock Baby Bee tank holds just enough fuel to get an R/C boat out in the middle of the lake and stop.
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-04
Location : NC
rsv1cox- Top Poster
Posts : 10851
Join date : 2014-08-18
Location : West Virginia
rsv1cox- Top Poster
Posts : 10851
Join date : 2014-08-18
Location : West Virginia
RE:Curious Cox 350 Baby Bee
Bob,
Regarding the two mylar reeds in place on the Baby Bee, a few years ago, one of the many things I acquired from the Cox R&D batch that showed up, was a Red Cox Shrike car with the Baby Bee pusher setup.
It was totally frozen solid which helped get a really good price from the guy.
Once I got it home and took it apart, it was apparent that the Shrike was a customer store return that made it all the way back to Cox.
The tank had been filled by the original purchaser and was left totally full of fuel for many years to end up as hard gel.
When I got it all apart finally, I found that there were actually two mylar reeds put in by the factory assembly person.
It would never start no matter what that caused it to end up back at the factory.
I totally cleaned it and replaced all seals, gaskets, and one reed and it is mint and never started, yet...
FWIW...Steve.....
Regarding the two mylar reeds in place on the Baby Bee, a few years ago, one of the many things I acquired from the Cox R&D batch that showed up, was a Red Cox Shrike car with the Baby Bee pusher setup.
It was totally frozen solid which helped get a really good price from the guy.
Once I got it home and took it apart, it was apparent that the Shrike was a customer store return that made it all the way back to Cox.
The tank had been filled by the original purchaser and was left totally full of fuel for many years to end up as hard gel.
When I got it all apart finally, I found that there were actually two mylar reeds put in by the factory assembly person.
It would never start no matter what that caused it to end up back at the factory.
I totally cleaned it and replaced all seals, gaskets, and one reed and it is mint and never started, yet...
FWIW...Steve.....
66 Malibu- Gold Member
- Posts : 477
Join date : 2012-02-28
Location : Georgia
Re: Curious Cox 350 Babe Bee
I don't know about battery acid but i Know if you leave one in hobbys #9 for a month it will do that to it
![lol!](https://2img.net/i/fa/i/smiles/lol.gif)
![Crying or Very sad](https://2img.net/i/fa/i/smiles/icon_cry.gif)
getback- Top Poster
Posts : 10276
Join date : 2013-01-18
Age : 66
Location : julian , NC
Re: Curious Cox 350 Babe Bee
getback wrote:I don't know about battery acid but i Know if you leave one in hobbys #9 for a month it will do that to it![]()
![]()
The voice of experience.
![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
BOb
rsv1cox- Top Poster
Posts : 10851
Join date : 2014-08-18
Location : West Virginia
Curious Cox 350
Forensic guess on photo of 4 engines:
Clockwise starting at upper left-- 1) Stuka, splat in a million pieces on parking lot first attempt to fly 2) PT- 19 with plenty of flight time
3) Lil' Stinker-- busted landing gear first flight 4) PT-19 low time, probably busted a little something or another in a normal training crash on grass
Clockwise starting at upper left-- 1) Stuka, splat in a million pieces on parking lot first attempt to fly 2) PT- 19 with plenty of flight time
3) Lil' Stinker-- busted landing gear first flight 4) PT-19 low time, probably busted a little something or another in a normal training crash on grass
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-04
Location : NC
Re: Curious Cox 350 Babe Bee
ticomareado wrote:Forensic guess on photo of 4 engines:
Clockwise starting at upper left-- 1) Stuka, splat in a million pieces on parking lot first attempt to fly 2) PT- 19 with plenty of flight time
3) Lil' Stinker-- busted landing gear first flight 4) PT-19 low time, probably busted a little something or another in a normal training crash on grass
Excellent guess.
I just cleaned the 3 .049's (A/F boil) and the upper right PT-19 shows a lot of castor goo while the .020 and bottom PT-19 are quite clean. But I can't agree on #1, a parking lot splat would have lunched that spinner.
rsv1cox- Top Poster
Posts : 10851
Join date : 2014-08-18
Location : West Virginia
![-](https://2img.net/i/empty.gif)
» Mail day. 1/2A Brodak Wildcat, Junk .049's, and curious Babe Bee intake screen.
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» Cox radial engine
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» New to these engines, curious about how to tweak them and care for them!
» curious about cox engines
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