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Cox Engine of The Month
July-2019
Mike1484's

"Tee Dee .020 on a free-flight model"



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Speed Contest 2019
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Post  rex f. on Thu Jul 11, 2019 5:05 am

Will need some guidance on use of site
My interests are only cox reed speed

& development of this class in australia
At my mannering park club in nsw aust
I fully believe that i can produce the most powerful
Reed motor sorry cox reed motor ever
Thanks for listening once i learn & am more conversant
With this forun re sending pics etc & my methods
Everyone will know
Thanks for viewing acountry boys outlook

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Post  Oldenginerod on Thu Jul 11, 2019 6:39 am

Hi Rex.
Glad you decided to add another one of we Aussies to the group.
Some of our guys have developed some hop-ups for the Cox reed engines. Mostly these engines were used in our Tach Races. No actual flying, just pure RPM.
The original "Reed Speed" competition focussed on profile scale models, but the current speed contest is pretty light on rules and can involve just about anything with a Cox engine that'll fly.

If there's anything in particular you want to ask, then just ask. These blokes are always up for a chat, and giving advice.

You need to be a member for a short while before you can post pictures. There's instructions on how to do that somewhere. I'll try to find them and post them here.
Cheers.
Rod.
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Post  Oldenginerod on Thu Jul 11, 2019 6:46 am

Here, have a look at this.

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Post  getback on Thu Jul 11, 2019 6:52 am

WELCOME TO THE FORUM REXF !!!! Interested in what you have to share. Small Cox Logo Babe Bee .049 Small Cox Logo
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Post  andrew on Thu Jul 11, 2019 11:51 am

Welcome to CEF.
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Post  Kim on Thu Jul 11, 2019 12:34 pm

WELCOME TO C.E.F. REX !!!!!!!!!!!!!!
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Post  GallopingGhostler on Thu Jul 11, 2019 1:05 pm

Welcome to CEF, Rex. We have those here who enjoy speed reedies and other Cox engines. Me, I'm a sport user. There's really nothing earth shattering about posting. Admins have limited new posters to posts only until they have posted sufficient number of messages, don't know the threshold, but you'll get those privileges to upload photos soon enough if you continue posting. I gather this was done to keep spammers away.

We look forward to what you have to share. Thumbs Up
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Post  balogh on Thu Jul 11, 2019 2:36 pm

Welcome to CEF, Rex..we are all eager to hear your engine hop-up ideas!!
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Post  roddie on Thu Jul 11, 2019 3:37 pm

Hi Rex! Hand Shake Welcome to the Cox Engine Forum. I'm sure that you will enjoy your time spent here. There's a wealth of information available.. and lots of friendly fellow modellers who enjoy these model-engines.
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Post  1/2A Nut on Thu Jul 11, 2019 6:12 pm

Reed Speed should be fun, a good way to get started is build a Killer Bee style engine
with a light weight piston, good fit, polished cylinder walls, mylar reed, large intake
venturi, good glow plug choice / compression etc. TD style exhaust ports, polished
bypass ports and flutes. Sealed NV 128 TPI very well centered low weight balanced
prop and centered vibration free low weight minimal spinner, thrust plate, low drag
crank to crank case fit with no slop.

For a base line reference:

Static: 4x4.5 prop 25,516 rpm / 107mph pitch speed / 7.1oz thrust / .132hp- 98.47W
25% nitro 20% castor.

4th of July Flag Fireworks Small Cox Logo Thumbs Up
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Post  getback on Thu Jul 11, 2019 6:56 pm

This is from the last tach race ...  https://servimg.com/view/16842846/5760Just joined Tach_r11
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Post  rex f. on Thu Jul 11, 2019 8:25 pm

Thanks getback just looking at my killer bee assembled with pzrts from bernie (ithink
Imust have the largest stock of cox parts in the southern hemispherr) anyway to me the
Venturi seems flush with the backplate face san make spacers etc but did not want to fit
An intake surestart style any suggestions rex f
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Post  NEW222 on Thu Jul 11, 2019 8:27 pm

Welcome to CEF Rex!

And that is a great Picture Eric! I love it.
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Post  Admin on Thu Jul 11, 2019 9:10 pm

Welcome to the forum!

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Post  rex f. on Fri Jul 12, 2019 1:17 am

Rexpc@bigpond.com wrote:Thanks getback just looking at my killer bee assembled with pzrts from bernie (ithink
Imust have the largest stock of cox parts in the southern hemispherr) anyway to me the
Venturi seems flush with the backplate face san make spacers etc but did not want to fit
An intake surestart style any suggestions rex f
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Post  getback on Fri Jul 12, 2019 8:05 am

Rexpc@bigpond.com wrote:
Rexpc@bigpond.com wrote:Thanks getback just looking at my killer bee assembled with pzrts from bernie (ithink
Imust have the largest stock of cox parts in the southern hemispherr) anyway to me the
Venturi seems flush with the backplate face san make spacers etc but did not want to fit
An intake surestart style any suggestions rex f
 The venture will only bee a few thousands from the mount , it want bee flush if you mount it to a piece of wood , Here is some good read for you about our friend paul he checks in now and then and is a champion Mouse Racer ...  http://www.balsabeavers.com/information/articles/mouse_racing_2016.pdf
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Post  getback on Fri Jul 12, 2019 8:09 am

stay with the product or Killer Bee back plate for some RPMs if that is what you want and not the Bee tank style , here is some more read maybe a little different than the other ...https://www.coxengines.ca/files/newsletter7.pdf This Site Rocks!
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