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Old 01-20-2006, 05:59 PM
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Servo Direct Drive

Found this and it looks interesting,
http://durantdirectdrive.com/
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Old 01-20-2006, 06:06 PM
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Re: Servo Direct Drive

Good idea,but looks like a PITA as far as install and to remove.
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Old 01-20-2006, 06:11 PM
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Re: Servo Direct Drive

Doesn't look like that great of an idea for competition, maybe sport flying or scale. The mechanical advantage is alway's 1:1 because the surface will have to move whatever degree the servo moves. On most giant scale IMAC type airplanes this is far from so. For instance, on my 42% Dalton 260 the servos move 60 degree's while the surface only moves 35, this higher mechanical advantage is necessary, You would also have one heck of a touchy control surface with that thing. That would be like running a 2" arm on your typical linkage setup.

-Kelly Gerber
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Old 01-20-2006, 07:41 PM
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Re: Servo Direct Drive

I'm going to run this set up in my Carden Yaks this season. The set up is easy and simple. It works great.

I have flown all of the planes on the website. (durantdirectdrive.com) The airplane is not at all touchy. If anything it felt like to me the airplane felt tighter. No slope in the linkage. The Ultimate and the Extra both have several hundred flights on them, with no problems at all. Also you don't have to worry about control horns breaking or screws falling out.

Give it a try! I plan on posting some pics at a future date.

Rick Byrd

Team Futaba, Carden Aircraft
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Old 01-26-2006, 04:31 PM
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Re: Servo Direct Drive

I'd like to see your set up. this looks interesting.
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Old 01-26-2006, 04:46 PM
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Re: Servo Direct Drive

I think it would be great if the plane were built around that and the servos had the torque for it.
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Old 01-31-2006, 08:16 PM
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Re: Servo Direct Drive

I did this setup about 4-5 years ago on a 38% 260, using 8411's. Ailerons used one at each end, the elevators had one at the inboard corner, and the rudder used pull-pull in the normal manner.

I had no problems with the setup, and it was easy to adjust, but you had to use matched servos. Also, the big "notch" in the control surface can be a bit unsightly.

But, it does work.
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Old 01-31-2006, 11:25 PM
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Re: Servo Direct Drive

The boxes can be installed even after the plane is covered. Very simple to install. Some pics of my Yak are going to be put on the site. Step by step.
Also servo matching isn't as critical with the use of a matchbox.
Rick
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Old 12-01-2007, 07:27 PM
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Re: Servo Direct Drive

i have this set up on my edge and it works great, although its a pain to install them, and also if you want to remove the aileron for some reason its also a pain, but it works very well. though i dont know how long my servos will last though because i crashed a while back which destoyed the soft mount, so the servos are getting all the vibration they can get.
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Old 12-01-2007, 11:34 PM
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Re: Servo Direct Drive

Quote:
Originally Posted by rdaven45 View Post
i have this set up on my edge and it works great, although its a pain to install them, and also if you want to remove the aileron for some reason its also a pain, but it works very well. though i dont know how long my servos will last though because i crashed a while back which destoyed the soft mount, so the servos are getting all the vibration they can get.
You will be fine without the softmount. My Yaks aren't soft mounted and the servos are fine. Check out the article in Model Aviation for installation.

Rick
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Old 12-01-2007, 11:35 PM
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Re: Servo Direct Drive

.
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Last edited by Rbyrd; 12-01-2007 at 11:37 PM. Reason: double posted
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Old 12-05-2007, 08:16 AM
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Servo Direct Drive

I'm wondering about the 1:1 also?

Wha'ts the lowdown on that caper
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Old 12-05-2007, 08:52 AM
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Re: Servo Direct Drive

Here's a thread about the system. Nice discussions on both sides.

http://www.rcuniverse.com/forum/m_38..._1/key_/tm.htm
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Old 12-10-2007, 09:53 PM
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Re: Servo Direct Drive

I read about this in the latest model aviation. Interseting how that's setup. I'd be worried about something coming apart in the servo. Like a gear to skip or the motor to burn up. That's why I like just standard servo installation. Allows some flex in the control rods. Just my .02
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Old 12-10-2007, 10:51 PM
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Re: Servo Direct Drive

I thought about trying something similar awhile back... but this is nice to see. I hope I can see it in person sometime.
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