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Cox Engine of The Month
February-2024
1/2A Nut's

"RC Speed Boat Power Drive TD .020"

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Post  MauricioB Fri Apr 20, 2018 12:38 am

Here I made a speed regulation ring, with a piece of aluminum alloy pipe (a bicycle handle), works very well, yes, all the work was done by hand and therefore the adjustment was about 3 hours ... but the result was worth the effort.
I share with you!

Propeller Cox 7 * 3.5 (hard plastic gray)
N: 15%
R: 20%
M: 65%

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Post  Jason_WI Fri Apr 20, 2018 2:17 am

Nice job on the throttle ring. Looks like it has good transition from low to high speed.
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Post  balogh Fri Apr 20, 2018 2:30 am

Nice job Mauricio I love the TD09s.
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Post  MauricioB Fri Apr 20, 2018 11:57 pm

Thanks guys for taking the time to watch the video.
What I try to show here, is that with a little dedication and passion, with an aluminum alloy spout taken from the piece of a bicycle handlebar, one can convert your engine .09 U / C or free flight in R / C .
It takes a long time to make the adjustment by hand, but the result is great.
If Jason, the transition is proportional even if I close the accelerator completely (leaving the exhaust ports covered), the engine stops, which guarantees total control of the engine from the radio control.
Yes Andras, the .09 engine is very powerful, I also like it, like most Cox Medallion engines and Tee Dee in its different displacements.
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Post  1/2A Nut Sat Apr 21, 2018 8:22 pm

Well done Mauricio! Clapping

What plane is getting the .09? Small Cox Logo

Tested mine with a throttle sleeve / venturi:
Static MA 5.5x4.5 / 18.3k / 14.8oz / 80mph /.197hp / 147w
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Post  MauricioB Sat Apr 21, 2018 11:23 pm

Thanks Brad for that data you show there!
For now I have no plans for any plane, I'm just enjoying the march and hear them roar at these beautiful engines! Beer Cheers
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