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Cox Engine of The Month
Cox outboard boat motor
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Re: Cox outboard boat motor
From the looks of it's a TD .049 or .051
SD
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Last edited by SuperDave on Tue Nov 05, 2013 10:43 am; edited 1 time in total
SuperDave- Rest In Peace
- Posts : 3552
Join date : 2011-08-13
Location : Washington (state)
Re: Cox outboard boat motor
i say its 049?? and very cool,custem made im sure:cox logo:
bullit132- Gold Member
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Re: Cox outboard boat motor
It could be either because both are externally identical. The way to identify a .051 is to look for the circular ring around the piston. No ring? It's a .049.
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SuperDave- Rest In Peace
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Re: Cox outboard boat motor
Usually when the carb body is red it is assumed an .051 when it's black .049. However, Dave you are correct in that parts are easily swapped between the two therfore, the ring around the piston will rule out any doubt.
Performance is the same so in the end it doesn't really matter.
Performance is the same so in the end it doesn't really matter.
Cribbs74- Moderator
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Location : Tuttle, OK
Re: Cox outboard boat motor
Here is another made by Dennis Fadden using a TD .010
Many amazing small engines are shown here, some with Cox parts, use the links to fully explore this web site.
http://www.craftsmanshipmuseum.com/KnappCol.htm
http://www.craftsmanshipmuseum.com/rooms.htm
Many amazing small engines are shown here, some with Cox parts, use the links to fully explore this web site.
http://www.craftsmanshipmuseum.com/KnappCol.htm
http://www.craftsmanshipmuseum.com/rooms.htm
Last edited by crankbndr on Tue Nov 05, 2013 12:02 pm; edited 1 time in total
crankbndr- Top Poster
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Re: Cox outboard boat motor
As a footnote to Ron's comment:Cribbs74 wrote:Usually when the carb body is red it is assumed an .051 when it's black .049. However, Dave you are correct in that parts are easily swapped between the two therfore, the ring around the piston will rule out any doubt.
Performance is the same so in the end it doesn't really matter.
The distiction between the otherwise identical TD .049 and .051's was made for AMA class purposes: the .049 is a 1/2A while the .051 is Clas A. So a single plane could be flown in either class depending on the engine used.
(Why do I know these things?)
SD
SuperDave- Rest In Peace
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Re: Cox outboard boat motor
My concern with the outboard shown would be the venturi facing prop wash. A good way to suck in water especially on launching.
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SuperDave- Rest In Peace
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Join date : 2011-08-13
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Re: Cox outboard boat motor
My thoughts as well. Not sure how you would solve that, but the .010 engine is as cool as it gets. AndySuperDave wrote:My concern with the outboard shown would be the venturi facing prop wash. A good way to suck in water especially on launching.
SD
anm2- Gold Member
- Posts : 293
Join date : 2013-03-30
Re: Cox outboard boat motor
Cox made a prototype outboard motor that looked like a Mercury Marine outboard including the engine cover. A picture of it is in the Cox Model Engine Handbook.
Jason_WI- Top Poster
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Re: Cox outboard boat motor
If the venturi was fitted with a forward-facing "snorkel" and bracket, it would solve that problem. It could be made of aluminum tubing and fastened to the venturi with a short silicone tubing "sleeve" and sm. tie-wraps. At speed; it might even produce a "ram-air" effect!anm2 wrote:My thoughts as well. Not sure how you would solve that, but the .010 engine is as cool as it gets. AndySuperDave wrote:My concern with the outboard shown would be the venturi facing prop wash. A good way to suck in water especially on launching.
SD
Jason_WI- Top Poster
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Re: Cox outboard boat motor
That Cox outboard is really cool, never seen one. Thanks for the photo, now I know what I want for Christmas.
crankbndr- Top Poster
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Re: Cox outboard boat motor
Then they'd never get you out of the bath tub.crankbndr wrote:That Cox outboard is really cool, never seen one. Thanks for the photo, now I know what I want for Christmas.
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RknRusty- Rest In Peace
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Re: Cox outboard boat motor
My wife could bring me batteries and fuel.RknRusty wrote:Then they'd never get you out of the bath tub.crankbndr wrote:That Cox outboard is really cool, never seen one. Thanks for the photo, now I know what I want for Christmas.
crankbndr- Top Poster
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Re: Cox outboard boat motor
Good luck getting the cox outboard for x-mas. It's in Dan Sitters collection.
Jason_WI- Top Poster
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Re: Cox outboard boat motor
crankbndr wrote:My wife could bring me batteries and fuel.RknRusty wrote:Then they'd never get you out of the bath tub.crankbndr wrote:That Cox outboard is really cool, never seen one. Thanks for the photo, now I know what I want for Christmas.
don't forget coffee...
Re: Cox outboard boat motor
Here's a couple from my photo archives... The "Atwood" positions the venturi "forward"... while the "Wen-Mac's" faces rearward. The "drive-units" look to be nearly identical.
The Atwood "Speedster"
The Wen-Mac
The Atwood "Speedster"
The Wen-Mac
Re: Cox outboard boat motor
Here is a home made job on eBay
http://www.ebay.com/itm/cox-outboard-engine-020-/161145627134?pt=Radio_Control_Parts_Accessories&hash=item25850721fe
http://www.ebay.com/itm/cox-outboard-engine-020-/161145627134?pt=Radio_Control_Parts_Accessories&hash=item25850721fe
crankbndr- Top Poster
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Re: Cox outboard boat motor
roddie wrote:Here's a couple from my photo archives... The "Atwood" positions the venturi "forward"... while the "Wen-Mac's" faces rearward. The "drive-units" look to be nearly identical.
The Atwood "Speedster"
The Wen-Mac
They are nice looking outboards, been thinking about starting an outboard collection myself. Very cool.
crankbndr- Top Poster
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Re: Cox outboard boat motor
...when I was a little kid (couple months ago) I had a really neat scale plastic speed boat with a looking electric motor, metal outboard. I've always thought it would be neat to find one like that again, but I probably wouldn't want to pay for it.
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