Dragonfly/Medallion 049 RC Muffler

ebeneezer Sat Jun 15, 2013 4:51 am

Hi Guys I have just purchased a Dragonfly RC muffler from Cox International. Fantastic sevice. However the muffler came with neither fitting insructions or operating instructions. As I want to fit it to my Medallion 049 and they are now closed untill Monday, and I've never seen one used, HELP!!!

Ebeneezer

tru168 Sat Jun 15, 2013 6:33 am

hi,

Do you nave tools to remove your cylinder ? you need to remove cylinder, and put on your throttle muffler.

Dragonfly/Medallion 049 RC Muffler Dragon12

you can find medallion with throttle muffler on this page:

http://www.mh-aerotools.de/airfoils/cox_medallions.htm

let me know how it perform .

regards,

tru168

ebeneezer Sat Jun 15, 2013 9:07 am

Thanks, and how do I connect a servo, what linkage?

Cheers Dragonfly/Medallion 049 RC Muffler 3929217648

tru168 Sat Jun 15, 2013 9:49 am

Hi,
look at its C-clip, 2 small hole on it, for Z shape piano wire push rod to hook on.

ebeneezer Sat Jun 15, 2013 11:56 am

So its the circlip that opens and closes the throttle. Whats the ratchetted black clip for?

Cheers

ebeneezer Sat Jun 15, 2013 12:11 pm

No worries, just downloaded the manual from Cox International all is clear now.

Cheeers

Fireball Wed Nov 06, 2013 5:00 pm

I have the same throttle, muffler assembly as in this thread. Medallion .049 R/C (0.8 cm³) Manufactured in 1988-1996 (#250-1, ECJ #101) This is a beam mount version of the Medallion with the rotating, adjustable throttle muffler. Is there a suggested way to fix the throttle in the wide open setting as though it were not R/C but U/C?

Jason_WI Wed Nov 06, 2013 5:57 pm

Wire it open to the firewall or use a pushrod fixed inside the fuse to hold the throttle. If you can move the circlip holes towards the venturi you could wire it open by wrapping a small wire around the venturi intake to hold it open.

John Goddard Fri Nov 22, 2013 7:19 pm

Depends what you're using it on Mike. Unless you're flying at a really noise sensitive site
I'd chuck that 'silencer' to one side and get a throttle ring.
Those things don't make much concession to quietness but they do strangle the power and load
the servo.
If you look at my 'Dragon Extreme' on you tube you'll see how well the Cox's run with a throttle
ring and how (comparatively) little power it looses.
Very Happy

John Goddard Thu Nov 28, 2013 10:00 am

PS
As I learnt using the Dragonfly tank, they work really well on an rc model.
BUT
If you intend to run it then store it for more than a couple weeks consider
opening the tank, removing the pick up tube, cleaning it, then storing it.
The tube is so thin that it deforms quickly if left in glow fuel.
Babe Bee

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Dragonfly/Medallion 049 RC Muffler

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I have a beam mount .049 Medallion, need suggestion.

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