Thread Tools
May 30, 2019, 07:13 AM
Registered User
Thanks, hope it flies as well as it looks.!
Sign up now
to remove ads between posts
May 30, 2019, 11:32 PM
Registered User
Hyperflight has more kits available. Mine is on its way.
May 31, 2019, 01:25 AM
Registered User
Good luck with your build Bob.
May 31, 2019, 12:50 PM
Hates Palm Trees
Great looking build!

What's the weight so far?

Steve
Jun 01, 2019, 05:22 AM
Registered User
A few bits to do but weighs 500g at the moment with battery.
Think its going to end up about 530-540g but will let you know later.
Jun 02, 2019, 02:34 AM
Registered User
Had my first flight yesterday evening in calm warm conditions.

First launch the model nose dived and hit the ground reasonably hard.
I trimmed the nose up and re launched which was a little better.
After a few flights I ended up with the ailerons trimmed up about 6mm each side to
get it to fly level. I played with the c of g which made little difference.

Is it correct to end up with this amount of trim?

I also have a question re the aileron setup.

Normally you have more up than down aileron movement but it appears the opposite
on the Dart. Is there a reason for this?
Also in thermal mode it says to have up aileron. I fly dlg's and gliders and this is opposite to
that. Is it flying wing thing?

I will hopefully post a video showing the first flights later.

Regards Martin.

RES Dart Glider (1 min 3 sec)
Last edited by MartinGough; Jun 03, 2019 at 02:42 AM. Reason: video
Jun 03, 2019, 09:35 AM
Hates Palm Trees
Martin,

Yeah. 6mm is approx. what I have on mine.................It's a lot of reflex but all flying wings have some amount of reflex.

The ailerons on high performance sailplanes typically have some aileron differential. (i.e. more up than down) to facilitate turns but not flying wings.

I have a thread for my RES-Dart build on the thermal forum that includes first flights and some thoughts on this design.

https://www.rcgroups.com/forums/show...ld-and-fly-one

Steve
Jun 03, 2019, 10:18 AM
Registered User
Hi Steve
Thanks for your reply. I thought I had done something wrong with the wing build
but you have put my mind at ease after reading your thread. I hope to fly it on Wednesday
when the wind drops a little. I'll let you know how I get on. Both fuselages are ready so
will try out the power version as well. I used the ply fuselage for the powered version and made a balsa one for the glider. Im probably going to end up making another couple of fuselages to get better c of g's so avoiding adding weight.
Jun 03, 2019, 11:37 AM
Hates Palm Trees
Using the plywood fuse for a powered version was exactly what I planned on doing!

What was your final RTF weight for the un-powered version? Mine flew at 18.45 oz / 523 g.

Steve
Jun 03, 2019, 02:45 PM
Registered User
Steve on some very dodgy kitchen scales 540g without a battery.
Jun 04, 2019, 12:42 PM
Hates Palm Trees
That's pretty light. I think I saw a build log where the final RTF weight for a stock RES-Dart was 22oz.

Steve
Last edited by SteveK123; Jun 04, 2019 at 12:48 PM.
Jun 04, 2019, 12:48 PM
Hates Palm Trees
I'm convinced the RES-Dart can be built at approx. 16 oz.

Mine flies so well at 18.5 oz / 525 g once it's off the hi-start that I'm tempted to sell the one I have and build another kit. With another 40 ft of launch height and this thing could be a consistent contest winner.

Steve
Last edited by SteveK123; Jun 05, 2019 at 05:59 PM.
Jun 04, 2019, 04:48 PM
Registered User
Be interested to see your build Steve, hopefully flying mine tomorrow.
To save weight I think you need a short nose fuselage for a powered version as I have
a ton of ballast with the stock ply fuselage and for a glider version a longer nose which in my case would reduce the battery weight needed to get the c of g.
Jun 05, 2019, 12:00 AM
Registered User
Mine came today. Absolutely no shipping damage to the box. Will open it tomorrow.
Jun 05, 2019, 02:14 AM
Registered User
Bob good luck with your build. If you need any help let me know.
Handy pictures in this document which I found very useful.
https://www.dropbox.com/s/p3a6mlbydc...tuell.pdf?dl=0
Last edited by MartinGough; Jun 05, 2019 at 06:27 AM. Reason: manual


Quick Reply
Message:

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion New F3B-RES Flying Wing Model -RES-Dart LSF226 Multi Task F3X 0 Dec 16, 2016 02:23 PM
Contest Dayton Ohio - DARTS – RES/Woody - Saturday/Sunday July 9-10, 2016 Satellite Kid Sailplane Events 0 Jul 03, 2016 11:15 PM