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Old Nov 03, 2013, 10:38 AM
United States, CA, Auburn
Joined Oct 2010
309 Posts
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Radian mods

I picked up a Radian for my daughter to learn to fly on. I've heard there are a few recommended mods, but the Radian thread at over 1100 pages is a bit much to go through. What mods do you guys recommend?
Thanks!
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Old Nov 03, 2013, 01:14 PM
Unrepentant Paragon addict
LVsoaring's Avatar
United States, OK, Moore
Joined Jan 2006
2,404 Posts
I assume you purchased a new one, and from what I understand, the new ones do not need the mods that the older ones did. As for my own experience, I got one this summer, put it together exactly per the directions, and she flew just fine..... no bad habits at all. 2 things I did do was to set the CG farther aft than the directions say. I'm at about 72 mm. And just to stiffen the spar a bit, I put a 5/16 dowel inside the spar. Other than that, it's completely stock, and IMO, an excellent way to start.
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Old Nov 03, 2013, 01:53 PM
United States, CA, Auburn
Joined Oct 2010
309 Posts
Yes, it's brand new. I'll charge the batteries and test fly it. Thanks.
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Old Nov 03, 2013, 04:14 PM
Registered User
United States, WA, Olympia
Joined Oct 2009
261 Posts
There are some other things that you can do to make it really perform well and to make it a little more durable. The Radian thread is too big to be practical. Do a Google search for 'radian modifications Paul Naton'. Paul is world-class and he did a video showing all of his mods. He's spends a fair amount of time talking about changing the incidence of the tail. That part of the video is now unnecessary as the newer Radians have that hanged already molded into the fuselage.

Ps... The plane will fly great right out of the box. The mods are to take it to the next level.
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Last edited by olythom; Nov 03, 2013 at 04:15 PM. Reason: Added comments
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Old Nov 03, 2013, 05:43 PM
altitude adjustment
thumbhead's Avatar
USA, CA, Irvine
Joined Mar 2005
449 Posts
Here are the changes I've made to my Radian that seem to be working out pretty well.

-Multiplex EZ Glider Pro spinner with 11 x 8 Aeronaut prop.
-Replaced the stock push rods with .042.
-Replaced stock wing joiner with beefier carbon tube.
-Embedded flat carbon rods in tail section to stiffen things up.

The above mods make the Radian fly much better. I fly with the CG right around 3.125".

Mark
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Old Nov 03, 2013, 06:07 PM
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LI, New York, USA
Joined Mar 2003
23,469 Posts
No mods required. Take it out of the box, trim it and fly.

After you fly for a little while you might try moving the CG back a bit. I have been flying one for years and that is all I did before I changed the prop and battery for ALES contests.
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Old Nov 03, 2013, 08:12 PM
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Canada, QC, Saint-Rémi
Joined Sep 2013
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If you haven't done it already, use 4in clear packing tape and cover the leading edge of the wings and the nose. It will protect from the hard landings of your student.
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Old Nov 03, 2013, 08:23 PM
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Lindenwold, NJ, USA
Joined Dec 2000
3,137 Posts
I believe that the one mod that is necessary is the installation of magnets in the wing roots to prevent the wings from separating in flight. A number of us have had problems with the newer Radians.
Magnet installation in the Parkzone Radian thread:
http://www.rcgroups.com/forums/showp...ostcount=15939
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Old Nov 04, 2013, 10:03 AM
Spool 'er up!
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United States, FL, Oxford
Joined Mar 2010
276 Posts
For most Radian owners, the one "must do" is to replace the fragile control connectors with something stronger & more reliable like those from Du-Bro. Here's an instructional video I made regarding this upgrade.

Parkzone Radian: Du-Bro Control Connector Upgrade (5 min 19 sec)
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Old Nov 04, 2013, 10:39 PM
United States, CA, Auburn
Joined Oct 2010
309 Posts
There are definitely a few mods I'll do to help it live longer and fly better with a 7 year old newbie pilot. Thank you for all your help!!
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Last edited by Shawn in NorCal; Nov 04, 2013 at 10:39 PM. Reason: spelling
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Old Nov 05, 2013, 06:40 AM
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Canada, QC, Saint-Rémi
Joined Sep 2013
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Wow 7yr old. Have you started on a simulator first?
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Old Nov 05, 2013, 10:14 AM
United States, CA, Auburn
Joined Oct 2010
309 Posts
I don't have a flight sim. I started when I was 7 and with an instructor close I never crashed a plane until long after I had soloed. The old saying about keep it 3 mistakes high, well double or triple that with with a new pilot....
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