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Old Dec 20, 2012, 05:07 PM
Mike M.
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United States, UT, Eden
Joined Jan 2010
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I too have been using reverse diff in thermal mode on the Polaris since last summer. It goes against my better judgement, especially on a rudderless plane where adverse yaw is more noticeable. I was so sure it would make yaw worse than with regular diff, with extra drag on the down aileron. I fought it and was very skeptical about even trying it. But I eventually did, and liked it! I notice no difference with yaw, and I feel it thermal turns a little better because it doesn't tend to drop the nose as much when the ailerons deflect. It feels easier to fly.
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Old Dec 20, 2012, 05:21 PM
hot air rises...
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Pleasant Grove, UT
Joined Jul 2005
7,881 Posts
I was a proponent of reverse differential for a while too, but some experimenting changed my opinion to... it doesn't really matter. I put my aileron differential on a switch so I could change from reverse differential to no differential (or positive differential). I could flip this switch while thermalling in lift. One turn with reverse next turn without. I could not see any difference in lift rate. The only difference was in where my aileron stick was positioned when countering rudder input. BUT, everyone who's posted about this in this thread is a better pilot than me so definately YMMV!
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Old Dec 20, 2012, 06:39 PM
Throw it like you hate it
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United States, CA, Castro Valley
Joined Apr 2007
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Quote:
Originally Posted by jfinch View Post
BUT, everyone who's posted about this in this thread is a better pilot than me so definately YMMV!
Don't be so humble, Finchie. You are an amazing competitor, one that I always am watching out for. You can put some damage on any pilot out there. The US F3K community's talent pool has grown so much lately that it's always a tough battle. I love it!

Ok, back to our scheduled program: Concepts are great airplanes! Keep up the amazing work, Roland!
Paul
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Old Dec 20, 2012, 10:20 PM
usaf3kteam
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Roland at the Worlds got me to use the reverse diff it was his idea and it works great. At the Worlds before it started I set all my planes up that way cheers.
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Old Dec 20, 2012, 10:33 PM
up from the skies
Tmfury's Avatar
United States, CO, Fort Garland
Joined Jul 2011
587 Posts
Since I got home from AZ open I set up rev diff In thermal mode on my concepts cause g man tell me to.
I can't say it's been a love connection (yet)
The plane handles different and seems harder to turn smoothly
All other modes are 50-50
Does rev diff require typically less rudder mix or more
Thanks
Tom
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Old Dec 20, 2012, 10:37 PM
One Idiot is plenty...
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United States, OR, Portland
Joined Jun 2005
5,273 Posts
Practicing in Paradise.
Maui vacation Dec 2012 (0 min 32 sec)

Yuri
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Old Dec 20, 2012, 11:27 PM
Registered User
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Joined Feb 2007
706 Posts
Your Killing me Yuri! Aloha nui loa.
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Old Dec 21, 2012, 05:48 PM
usaf3kteam
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Very cool
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Old Dec 21, 2012, 05:49 PM
usaf3kteam
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Quote:
Originally Posted by Tmfury View Post
Since I got home from AZ open I set up rev diff In thermal mode on my concepts cause g man tell me to.
I can't say it's been a love connection (yet)
The plane handles different and seems harder to turn smoothly
All other modes are 50-50
Does rev diff require typically less rudder mix or more
Thanks
Tom
Less I went from 60% to 30%
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Old Dec 21, 2012, 07:04 PM
up from the skies
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United States, CO, Fort Garland
Joined Jul 2011
587 Posts
Got to test in great conditions today
Backed off Rudd mix % in all modes from 75-40%
Also thermal Chamber now at 5mm (was 3)
Rev diff in therm mode only (bout 3-1)
Skyler and Jason flew it and liked it more after the changes, flys the best to me now too.
Tom
This was x3
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Old Dec 21, 2012, 09:18 PM
usaf3kteam
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Cool Tom cheers
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Old Dec 28, 2012, 04:59 PM
usaf3kteam
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Meditation :
SAM 6481 (4 min 16 sec)
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Old Dec 28, 2012, 05:12 PM
usaf3kteam
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SAM 6482 (7 min 32 sec)
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Old Dec 28, 2012, 08:22 PM
usaf3kteam
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SAM 6488 (1 min 3 sec)
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Old Dec 28, 2012, 11:36 PM
Throw it like you hate it
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United States, CA, Castro Valley
Joined Apr 2007
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Nice videos, George! I like the one of Jenn learning to putt. She has a good teacher. I am jealous; I wish I had a pin in my yard...and you as a coach
Cheers
Paul
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