Neos - ArmSoar Composite Gliders - Page 21 - RC Groups
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Jun 12, 2012, 01:44 PM
DLG Junkie
GULP!!! sniffle, sniffle...................whaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaa!
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Jun 12, 2012, 04:31 PM
Registered User
Originally Posted by ThomasLee
Hey guys,
There's going to be a little delay for everyone's kits unfortunately. The 6 fuselages I received today were snapped during shipment, and I won't get another batch until at least 2 or 3 weeks later since my buddy who makes these is on vacation at the moment.
Fingers crossed that the delay will be shorter rather than longer, and that it will only affect a limited number of kits. Please bear with me

I've only shipped a few fuselages, but I'm using PVC pipe for the job. Cost is about on par with cardboard shipping tubes but the PVC is tougher.

Jun 12, 2012, 06:09 PM
Registered User

Finally Done!!!

I finally found the time to finish my Neos (was out of town, other projects, and the 4 letter word - work). Had to install 20 grams to balance it with an all up weight of 281. Would have liked it lighter but it should not be an issue. It has a 2 cell Lipo 360 up front with a PLD regulator. Using a JR 241 servo for elevator and an Airtronics 5 channel 2.4 RX for control. The build was easy - just finding/making the time was an issue. Hope to fly it soon but currently have a sprained wrist (going through physical therapy) so that is slowing me down. A carbon wing would be nice but I cannot justify it (I bought this one too soon).

Jun 12, 2012, 06:50 PM
Will fly for Bourbon
DBSkyout's Avatar
David Jensen anytime!
Ok build going smooth. Tail on, servo pockets cut. Working on top drive. Might have it flying by the weekend. Need to figure out the spring pull. Thomas can you get me a sketch on the spring shape? Some pics on the exits for the strings would help. Did I mention how stiff the wings are? Really stiff wow should launch good.
Jun 12, 2012, 07:31 PM
Will fly for food
davidjensen's Avatar
This build manual for the Ultegra has a great pictorial on how to do springs
Jun 12, 2012, 09:36 PM
DLG Junkie
dave, there are GREAT threads on here about pull spring set-ups. search and you'll find them. i'll try to locate my favs and add a link or two also!

Art, get that thing in the air man!! tell your PT-ist to EXPEDITE!
Jun 12, 2012, 09:58 PM
ThomasLee's Avatar
Thanks guys, oh well! All part of the mailing system (unfortunately!)
I send mine to customers via pvc pipes too, but occasionally the manufacturer sends them in paper tubes, won't be doing that anymore after this experience though!

Dave, those threads are great. I'll post some of my photos for your reference as well in a few minutes.


I like to bend the spring with a little fold in the middle, this keeps both 'arms' of the spring in-line to prevent warps on the surfaces.

I take toothpicks (or small aluminum tubes) and epoxy them inside the surface where the legs of the spring will go to help spread the load.

After the epoxy cures, I bend the surface 180degrees, and simply insert the springs (hence, the hinge is on the throwing blade side of the vertical, and on the top of the horizontal).
Last edited by ThomasLee; Jun 12, 2012 at 10:11 PM.
Jun 12, 2012, 11:04 PM
ThomasLee's Avatar
Art, looks great! Hope to hear your thoughts on how it flies after your wrist recovers, all the best!

With the FG tails @ 12g, that should take ~10.5g from the nose, which should balance pretty darn close with an added (optional) servo for the rudder @~8grams.
The FG tails should take the AUW down by ~14grams or 0.5oz compared to the Kevlar tails.
Latest blog entry: Vibe Assembly Instructions
Jun 13, 2012, 09:44 AM
Chess club geek with wings
blunight's Avatar
Any chance you could detail the spring dimensions with a diagram such as you did for the throwing blade in post #294?

I've only found dimensions for "u" shaped torsion springs in the above links - not the inline springs you create to keep the control surfaces from warping.
Jun 13, 2012, 12:17 PM
Registered User
My spring system uses the standard straight line spring. The distance between the arms of 0.020 music wire is about 2.25 inches bent at 90 degrees. Plenty stiff for both elevator and rudder.

Also, I have pictures of my install now. I forgot my cable so I can not upload them work.

Jun 13, 2012, 11:41 PM
Will fly for Bourbon
DBSkyout's Avatar

Neos Carbon

Thanks every one for the spring info. Man this thing builds fast! The one piece fuse really speeds up the build. The carbon wings are really easy to work with. Top drive complete and ready for servo permanent install. Wing center section glass tonight. Picked up 2g of weight installing the elevator hard points, wing hard points, wing center glue and rudder glue. I will reweigh after glass work is complete. Air frame weight is now 177g. A few pics of the progress.
Jun 13, 2012, 11:57 PM
Registered User
SOARenity's Avatar
Nice job,Gorgeous!!!
Tom R
Jun 14, 2012, 12:13 AM
Registered User
Dave, It looks great! Cant wait to get a look at it close up.
Jun 14, 2012, 12:25 AM
Russ Young
isoarthenland's Avatar
Dave, you could use a little more flap throw

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