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Old Jan 20, 2016, 04:22 PM
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If you keep the span down the small linear servos should cope at low speeds. The cheap WLToys brick is probably better if you have access to a FlySky transmitter.

Another couple to try:
The new Flitetest.com mini Arrow wing, plans up soon.
Or the30 inch Flytrap: http://www.rcgroups.com/forums/showt...hlight=flytrap

Both available for glider or low powered use (brushed geared motor off the brick).
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Old Jan 21, 2016, 06:10 AM
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Quote:
Originally Posted by boa2110 View Post
I built this simple glider from a UMX brick.

https://youtu.be/EZJG5adAUe4
Neato! I'll give it a shot.
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Old Jan 21, 2016, 06:20 AM
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Those look good to. I'm just trying to use up my old spitfire um brick.
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Old Feb 01, 2016, 06:51 PM
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I made a cheap hot wire cutter using a dimmer switch and a 12v battery charger. First wing cut was a 2 layer foam that I hand cut LE and TE using 1.88" wide blue painter's tape as a guide.
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Old Feb 08, 2016, 08:17 AM
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Finished DLG ready for some testing. I am going to try using a 1S battery and no voltage booster.
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Old Feb 11, 2016, 07:48 PM
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Test today. Nose heavy and the elevator line was slipping at the control horn. My second DLG trimmed out nicely.

I will try the DLG with arrow shaft one more time and if I don't like how heavy it is I will rebuild it with a wrapped carbon boom.
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Old Feb 12, 2016, 09:52 PM
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I watched most of your e-glider videos. Pretty impressive! Some of the big wings were flexing a wee bit .

The 90 and 47 were great.

For a super easy and cheap (mine was free from work) get an old PC tower and rob the power supply out of it. Lots of YT videos on how to. One set of yellow wires and one set of black to your dollar tree extension cord split and two alligator clips. SS wire and a dowel and you have a pivot cutter. Make a simple bow and you have both versions.

Best thing I did for building. If you want some SS wire, I will mail you 20' for free. A guy on rcg gave me 4 rolls for lunch so your call.
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Old Feb 12, 2016, 11:05 PM
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If you want some SS wire, I will mail you 20' for free.
Thanks, I will give it a try.

I installed the rudder in the 47" today. It does help co-ordinate turns.

The temp got up to 86 today and the thermals were kicking in. Looking forward to my next 90" build.
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Old Feb 13, 2016, 09:17 AM
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A coil of stainless wire will be in the mail today.

86F

We've had snow in the yard since December....but it's melting finally. Going to be 53 later next week.
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Old Feb 15, 2016, 08:21 AM
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This one trimmed out but I noticed the right wing had some warping causing wash in. To compensate I had to add a lot of trim.

This morning I used an iron to flatten out the right wing.

The cord is 6.75" at root and 48" long. AUW 162g.
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Old Feb 15, 2016, 12:17 PM
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Looks good. I see one servo for the ailerons and one set up as a pull pull for the rudder. Is there a third one under the wing?

I use 1s 5 or 600 mAh lipos on my DLGs no ubec or regulator needed. Called gumstick batteries. Fly for hours on one swap out keep flying. On my big slope gliders i have 4 cell nimh batts 2000 mAh ...fly for days.
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Old Feb 15, 2016, 12:37 PM
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Looks good. I see one servo for the ailerons and one set up as a pull pull for the rudder. Is there a third one under the wing?
I am using one servo for ailerons and one for elevator. It limits me from making camber adjustments but is simple to build.

48" DLG (2 min 25 sec)
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Old Feb 15, 2016, 05:38 PM
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Nice flights. Looks well behaved and balanced. Now you should find a thermal generator and launch downwind of it a ways to ride the elevator up.

Usually a blacktop parking lot next to a field or similar dark ground surface that will heat the air directly above it more so than the lighter colored area around it. Voila! A thermal generator.
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Old Feb 17, 2016, 05:17 AM
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Nice flights. Looks well behaved and balanced. Now you should find a thermal generator and launch downwind of it a ways to ride the elevator up.
There is a school nearby that has a bunch of solar panels installed. I will see if I can get some lift off them.
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Old Feb 17, 2016, 07:51 AM
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Balsa covering

I tried a 1/32" balsa sheet and Gorilla wood glue. Seems very strong.
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