Spoilers - Page 2 - RC Groups
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Jul 20, 2012, 07:02 PM
Registered User
Hi Lincoln,
Do you also have an arrangement with wire instead of rubber bands for the single servo arrangement like Craig's in post 9.
Thanks
Ray
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Jul 20, 2012, 09:40 PM
"Get 'er Up"
lktroiani's Avatar
I've used both cable/string and direct wing servo methods for actuating spoilers and I much prefer the servo route. Servos in the wing provide a very positive and precise spoiler control movement which is very easy to adjust with end-point travel and trim adjustments from the transmitter. Another big plus is that plugging in the servos leads is much more convenient than connecting the strings/cable in the fuselage when attaching/removing the wing. Here's some pictures and a video of my typical setup. In this case I'm using a HS-55 in a Houston Hawk, which BTW, has worked out very well over the last few years:

https://www.rcgroups.com/forums/show....php?t=1637433
Jul 20, 2012, 10:46 PM
Registered User
Iktroiani has nailed it. Light weight servos (and low cost). Precise adjustments. Convenience. All worthwhile and superior to strings.

If light weight and low cost servos would have been available years ago, we may not have ever considered string acutaued spoilers.
Jul 20, 2012, 10:55 PM
Zeus
I like that setup. I am building a Windlord flying wing (build log at www.rcgroups.com/forums/showthread.php?t=1680750). I am going to use your installation method for the spoilers. If the Hitec-55 is sufficient for the Hobby Hawk spoiler, it should be enough torque for the Windlord spoilers.

The blue Hitec HS-55 looks cool. But, due to the brown laser cut edges in my partial kit, I am going with opaque covering. So, I may use Futaba S3114 servos since they are about the same weight with a higher torque rating and a bit smaller, albeit $5 more per servo.

Futaba S3114 - .21 torque, .28 oz weight
Hitec HS-55 - .1527 torque, .27 oz weight
Jul 20, 2012, 10:59 PM
VegasRay
Fickle Flier - here's the link to a spoiler setup I first showed in RC Groups almost four years ago. There are many sailplanes using this linkage with great success. The photos show how to install. Easy, precise control, light weight and reliable.

https://www.rcgroups.com/forums/showthread.php?t=955499

My advice to you is to pick any of the versions described here either strings, springs, rubber bands, servos, etc.

Over the years I have tried all of them and finally developed the E/Z Links. To me it's a keeper.

Ray
Jul 21, 2012, 10:55 AM
Zeus
Ray,

Wow. That is about as easy a setup as you can get. That's clever.
Jul 21, 2012, 12:12 PM
Registered User
Thanks for the setups! I have tried several with some success but am always looking for a better mousetrap!
Thanks!
Ray
Jul 24, 2012, 03:18 AM
Registered User
Quote:
Originally Posted by kostuk
Hi Lincoln,
Do you also have an arrangement with wire instead of rubber bands for the single servo arrangement like Craig's in post 9.
Thanks
Ray
Unless I'm missing something, the same arrangement ought to work.
Jul 27, 2012, 09:31 PM
Registered User
Mike-O's Avatar
Kostuk:

I haven't actually used spoilers on anything yet, so can't speak to how well what works, but have been collecting ways to do it - mainly with servos in the wing. They all came from RCGroups posts originally.

See attachments:

Mike
Jul 28, 2012, 02:04 PM
ak79's Avatar
If you want a super easy to install and very light spoiler set up try some simple torsion springs-

https://www.rcgroups.com/forums/show...sagitta&page=7
Jul 28, 2012, 03:26 PM
LSF # 7390 IV
onethermal's Avatar
Here is how I have done my spoilers for years https://www.rcgroups.com/forums/show...4&postcount=59 and here is how I keep them closed with a magnet https://www.rcgroups.com/forums/show...8&postcount=86

Hope that helps ... just keep every thing simple. small servos are a great way to go not strings and more linkages.

Clarence
Aug 01, 2012, 06:56 PM
Registered User
Just keep everything simple. Strings are nice and simple, not more wires, soldering and connectors! ;-)

I think that one's idea of "simple" probably depends on which way you've done it yourself. I've done both, and I don't think servos are easier. Unless the fuselage is so tight that you don't have room for the servo in it.

Maybe a miniature receiver and battery in a one or three piece wing and no wires or strings to connect at all!
Quote:
Originally Posted by onethermal
Here is how I have done my spoilers for years https://www.rcgroups.com/forums/show...4&postcount=59 and here is how I keep them closed with a magnet https://www.rcgroups.com/forums/show...8&postcount=86

Hope that helps ... just keep every thing simple. small servos are a great way to go not strings and more linkages.

Clarence
Sep 28, 2012, 04:27 PM
Registered User

Still having trouble


I am still having trouble with my spoilers. I don't want to give up on them so I am asking here again. Can you guys see any alignment errors or something I am not noticing. I am using the method suggested by Vegas Ray but I have never build an aircraft so... I don't know.

Thank you for looking.
Sep 28, 2012, 08:10 PM
It's gonna be YUGE!!!
LVsoaring's Avatar
FF, if I'm seeing correctly, your set-up looks like it will bind. The servo arm will rotate, and thus be creating an arc. Your horn on the spoiler also rotates, the connection point also making an arc. But the arcs are in 2 different directions. I know, my explanation is probably not clear at all. May I suggest sending Vegas Ray a PM, I'm sure he can get you all squared away.


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