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Cox Engine of The Month
April-2024
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"Kress ducted fan with new Cox Conquest 15 RC"



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Post  WingingIt74 Wed Mar 14, 2012 3:52 pm

I got one off of ebay. What type of fuel do I use?
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Post  nitroairplane Wed Mar 14, 2012 3:57 pm

Same as always!
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Post  WingingIt74 Wed Mar 14, 2012 4:00 pm

Same as in 049 or same as normal glow fuel?
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Post  nitroairplane Wed Mar 14, 2012 4:04 pm

Same as 049.
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Post  WingingIt74 Wed Mar 14, 2012 4:29 pm

Good deal, won't have to buy more fuel just yet Smile
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Post  nitroairplane Wed Mar 14, 2012 4:32 pm

WingingIt74 wrote:Good deal, won't have to buy more fuel just yet Smile
good Smile
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Post  WingingIt74 Thu Mar 15, 2012 1:00 pm

Well I learned something today at lunch. The 15 R/C did not come with a spinner.... so much for buying one... It should look purdy though Smile

Oh and it didn't have a button head... so much for ordering a button glow plug.... lol!
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Post  WingingIt74 Thu Mar 15, 2012 1:05 pm

Can darn near build one out of parts here:
https://shop.mecoa.com/shopdisplayproducts.asp?id=105
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Post  PV Pilot Thu Mar 15, 2012 1:12 pm

Those stock levels are VERY iffy. Some have never been updated for years,,as per Mecoa.
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Post  WingingIt74 Thu Mar 15, 2012 1:15 pm

What glow plug do I use? It didn't come with one.
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Post  Surfer_kris Thu Mar 15, 2012 1:16 pm

Sorry, I could have told you about the spinner, it comes with a dedicated washer and recessed nut though. The RC version also came with a regular glow plug rather than a head insert type.

Regarding fuel you can use less nitro, even FAI fuel works, but 10% helps with cold starts and handling.

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Post  nitroairplane Thu Mar 15, 2012 1:18 pm

OS number 8 is a medium plug in bothe length and temperature so a good place to start.
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Post  Surfer_kris Thu Mar 15, 2012 1:36 pm

You'll need a long reach plug. KB-1L are nice ones, but I've mainly used the glow inserts on mine.
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Post  WingingIt74 Thu Mar 15, 2012 2:33 pm

Mecoa sent me an email saying it was ready to ship. I asked about the spinner and they said it would fit. I think it will look nice Smile Also they said they'll swap the glow plug out that I ordered. So... I should have it up and running soon Smile
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Post  WingingIt74 Mon Mar 26, 2012 5:02 pm

What brand/type of prop do you use? I'm having issues finding one that fits in the aluminum spinner?
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Post  Cz10 Mon Mar 26, 2012 5:46 pm

You have to trim the spinner to fit the prop.
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Post  WingingIt74 Sat Apr 21, 2012 4:25 pm

Any tips on how to hand start this bad boy? My finger and arm is tired....
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Post  WingingIt74 Mon Apr 23, 2012 7:31 am

Anyone? It'll pop once but never run. I've got a sore finger and arm this morning.
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Post  nitroairplane Mon Apr 23, 2012 7:52 am

WingingIt74 wrote:Anyone? It'll pop once but never run. I've got a sore finger and arm this morning.

Yeah same as a tee dee.
High compression, small prop means you can't
Use as much flywheel effect.
So just flick hard or use an electric starter.
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Post  WingingIt74 Mon Apr 23, 2012 9:42 am

I know it's dangerous, but could I use a string and T-handle and wrap a couple 3 turns around the prop shaft?
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Post  nitroairplane Mon Apr 23, 2012 10:10 am

WingingIt74 wrote:I know it's dangerous, but could I use a string and T-handle and wrap a couple 3 turns around the prop shaft?

Really if your gonna risk something risk the engine not your fingers and use am electric starter but if you flick hard enough with you fingers it should go.remember there is a high chance the string would be tangled in the prop, tightening and pulling your hand down into it.
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Post  WingingIt74 Mon Apr 23, 2012 10:12 am

I don't want to buy an electric starter for one engine that I want to see run. I flicked it for over an hour yesterday Smile Even tried to make my own drill powered electric starter, no luck....
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Post  fit90 Mon Apr 23, 2012 10:17 am

I strongly agree with what Indra said! I never want to hear about anyone ever being hurt by an engine. Remember to check your glow plug/button to make sure it is glowing bright orange, put 3-5 drops of fuel in the carb and flip vigorously. It also helps, and can be used to prime, to hook the tank up to the engine, put a piece of clean fuel tube on the vent line and blow through the vent until fuel is up to the carb. If you do not want to put the 3-5 drops of fuel in the carb you can "blow" the fuel directly in by blowing through the vent. Just be careful of flooding since it is hard to judge how much fuel actually makes it into the carb. Also, have the throttle wide open for the initial starts and until you get to know the engine's personality better.

Good luck,

Bob
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Post  WingingIt74 Mon Apr 23, 2012 10:22 am

The reports I've read, they are suppose to be easy to hand start cold.... go figure. Ya, I wasn't too keen on the T-handle idea... I'd just like to see it run Smile
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Post  WingingIt74 Mon Apr 23, 2012 10:30 am

I also don't have the spinner on it..... how about a "Y" shaped fork starter to slip over and catch the prop.... much better then the T-handle idea Smile
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