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Oct 25, 2009, 10:03 PM
2 Big and Too Heavy
skyline223's Avatar
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Best plane for a .049 Cox?


Hey guys, as straightforward as this sounds, what is a good airframe for a .049 cox?

I have this engine that I've been running on a stand for fun a while and now I want to put it in a plane. An suggestions?
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Oct 25, 2009, 10:17 PM
Registered User
What do you want to do --- sport, trainer, powered glider, speed, .... ?

Kit, ARF, scratch?

andrew
Oct 25, 2009, 10:21 PM
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skyline223's Avatar
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lets say sport or scale kit
Oct 25, 2009, 10:43 PM
Registered User
I vote for a DNU or Skydrill from selecthobbies.com
Oct 26, 2009, 08:49 AM
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skyline223's Avatar
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What does it take to convert one of these little Cox .049's to RC?
Oct 26, 2009, 09:37 AM
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salat's Avatar
Quote:
Originally Posted by skyline223
What does it take to convert one of these little Cox .049's to RC?
it would be better to get Norvel 061 on ebay. They are cheap now. And better than 049 converted to r/c
Oct 26, 2009, 09:59 AM
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skyline223's Avatar
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I may very well consider that. Are there free flight planes for the .049?
Oct 26, 2009, 10:15 AM
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earlwb's Avatar
Ok for RC use, most everyone simply used a 2 channel radio setup, either rudder and elevator or ailerons and elevator. Few bothered with a throttle. You just handlaunch and fly the plane until it runs out of fuel and then perform a dead stick landing. Great for honing one's skills at dead stick landing.

On some COX engines they used a special throttle sleeve to get some throttle response. This is a precision fit sleeve with a notch cut into it, as you rotate the sleeve it blocks off the exhaust ports, thus restricting the exhaust and causes the engine to slow down. COX used to sell the sleeve to work on many engines, but it wasn't as good a fit as the special cylinder piston combos with the more precisely fitted sleeves. But they worked nonetheless.
Sometimes you can still find the throttle sleeves about here and there.
here is a example that someone just bought off of Ebay:
http://cgi.ebay.com/COX-.049-Model-A...14164008r18311
Oct 26, 2009, 10:19 AM
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Whizz's Avatar
Check out BMJR http://www.bmjrmodels.com/ very good kits.
Oct 26, 2009, 10:44 AM
What goes up must come down..
Skyline, there was an article into and old "Popular Mechanic" mag as a free flight plane, I search for it if you're interested tp build one, it was a little bipe all sheet balsa a very good flyer, asctually I build a few then and lost some too OOS, I had to time motor run in order to have just about 10 -30 sec. max power on to lift it high enough, one need a big field to fly free flight I.E> a football field is OK.
There are other too I remember putting an Ace R/O on one, lost some performance but stop loosing them...it came expensive to lost the motors witch justify the Rudder only but maybe a timer could have done the job also.
Roger B.
Oct 26, 2009, 03:59 PM
registered user
Here ya go Skyline, a super simple airplane for a cox sure start .049.
Oct 26, 2009, 04:27 PM
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skyline223's Avatar
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ha! that is simple, and somehow very appealing....


hows that SAT though?? lmao
Oct 26, 2009, 11:34 PM
Quote:
Originally Posted by skyline223
Hey guys, as straightforward as this sounds, what is a good airframe for a .049 cox?

I have this engine that I've been running on a stand for fun a while and now I want to put it in a plane. An suggestions?
I had the most fun using a .049super Bee; it has an extra port or slot in the head. Also, fuel tank has top and bottom ports (so you can fly inverted). The super bee gives you a little extra power...we flew the Baby Ring Master for years. The above combo is cheap, easy to build, flys great...can do all stunts....Most Important...use a balsa strut for your push rod. no bending, excellent response. Tommy
Oct 27, 2009, 01:45 PM
registered user
It does fly very well for just a flat piece of foam. But I will warn anyone who wants to build one, it is very squirrely and takes a few flights to get used to it. I have almost totaled mine many times.
Last edited by Glue Gun; Oct 27, 2009 at 02:06 PM.


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