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What glider/sailplanes are you flying?

Old 03-24-2006, 01:41 AM
  #101  
Epoxycup
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EDF

I thought of one other thing, on my Ascent the stock prop was junk. I changed to the black Graupner 6X3 Cam and it was like a new supercharged motor . If you have not tried that you will at least find it is way more efficent.
Looke and finding a scale glider to build from plans is going to be tough. Builders these days are a dying breed, something to do with immediate gratification I guess
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Old 03-24-2006, 01:55 AM
  #102  
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Epoxy, I actually had no folding props. so I used a APC 6x4 and it worked fairly well, for about a year. A few weeks ago the stock motor that came with it finally gave up the ghost. I guess with close to 40 flights and running higher amps, it was bound to happen. I'm now running a HET Typhoon 6/20 brushless and Tsunami-10 ESC with same prop and is drawing about 7amps at max throttle. Now if I can only get it to fly again. I tried today and it wouldn't trim out. May be the stronger motor. Put a little more right and down thrust and rechecked the controls. Will try again tomorrow. Maybe have someone trim it for me as I'm absolutely terrible at doing so. But from what I can see the present setup will fly with about the same authority as the stock setup I had
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Old 03-24-2006, 06:01 AM
  #103  
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I'm going to use a Graupner 8.5x4 Cam folder on my speed 540 motor.
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Old 03-29-2006, 07:14 AM
  #104  
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Hi,

Just decided to post my 2 meter electric sailplane too.

Its a Windex 1200C scratch build from plans. It was designed by Nick Ziroli and the plans are from Model Airplane News.

Its a balsa constructions. The fuse is planked. The power system is a small AXI motor direct drive 6x3.5 folder prop. and 3 cell lipos. Whole thing weighs 21oz. Its my first electric power glider, and I like it. The climb rate is good too, about 30-40 degree.

Just to add, yes, the motor is indeed on the fin.
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Old 04-01-2006, 12:47 PM
  #105  
Jason T
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I like where the motor is mounted. This is a really cool design IMO.
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Old 04-01-2006, 02:27 PM
  #106  
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Thanks. Also the good thing about it, if the plane crashes, the last thing to go is the brushless motor.
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Old 05-05-2006, 12:13 PM
  #107  
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My scratchbuilt from 1985 plans by Bob Boucher, the Astro Challenger 70. AUW including a 2100ma 3s1p Lipo is 23oz. WS is 70 in with area of 630 in sq giving a wing loading of about 6oz per ft sq. Two eflite S-75 servos and a FMA Direct dual conversion receiver provide the controls. Dragged aloft by a Eflite Park 400 outrunner, 10x7 eflite prop w/ prop saver (can't afford the folder yet), and Castle Creations-25 ESC. Fuse is covered in white super monokote, wings and tail feathers are transparent red and yellow monokote. First flight was yesterday. Needed lots of down trim, will change incidence angle of wing trailing edge today. The fuse is roomy (about 2in wide) and will take anything you care to install. The Park 400 is lighter than the Astroflight 05 it was designed for, so extended the nose moment by two inches to help with the balance. No additional weight needed. The elliptical wingtips were a new building experience for me, but made no changes except substituting bals for the hardwood spars. Wing trailing edge substituted 3/16in stock for 1/8in. Fuse sides are hard 1/16in balsa instead of 3/16in balsa. Flies like a Ohio Turkey Buzzard!!:p
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Old 05-18-2006, 03:25 AM
  #108  
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Spectra with a 78 inch wing.
I put a FMA Co-Pilot on it
Greg
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Old 05-23-2006, 06:15 AM
  #109  
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somebody did put a motor on the spirit 100??, ho does it works?
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Old 05-24-2006, 09:45 PM
  #110  
Red Scholefield
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I'm still flying an old Gruapner Electro Jr, must be nearly 20 years old by now. I've worn out 3 or 4 speed 600s in it and it just keeps on going and going and going. The Vengance (is going on 15 years), a vintage powered sail plane design kitted by Ted Davey, forrunner to the Slick. The baby in the bunch, only two, is the Mini Phoenix, a great little sailplane that will hold its own with the bigger ones, unfortunately it suffers some real quality problems in the fuselage molding - egg shell thin and just as brittle. Now discontinued.
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Old 05-25-2006, 01:36 PM
  #111  
Jeremy Z
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Originally Posted by Red Scholefield View Post
I'm still flying an old Gruapner Electro Jr, must be nearly 20 years old by now. I've worn out 3 or 4 speed 600s in it and it just keeps on going and going and going.
Maybe you should reward its long-standing good service with brushless power the next time a speed 600 runs low on brushes?
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Old 05-25-2006, 02:52 PM
  #112  
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Red S.
It's nice to see there are others that feel some planes don't need brushless motors to be enjoyed. Although the larger and more performance oriented sailplanes in my hanger are brushless equipt--my more sedate models are fitted with Cobalt and good old Graupner can motors.

There are times when I prefer to actually see my planes in the air rather than a Monokoted blur as they fly past.

BM
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Old 05-25-2006, 05:58 PM
  #113  
AEAJR
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Brushless does NOT mean high power. Brushless mean 50% better utilization of the battery. Smoother operation. Longer lasting motor.

You can put a brushelss in that is no more powerful than the speed 600 can motor. YOu will just get 50% longer battery runs or you can go down in battery size, giving you a lighter plane for lighter wing loading and better thermaling.

Oh yes, and a motor that is not likely to ever wear out. That too!

Brushless is not just for hop ups!
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Old 05-25-2006, 07:40 PM
  #114  
Franny
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Hi All,

I just finished a Bird Of Time conversion to electric with an AXI2820 in the nose. I hope to maiden it soon. We've had a bit of wind.

Franny
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Old 05-25-2006, 09:38 PM
  #115  
Red Scholefield
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The Bird of Time is one classic glider, beautiful lines and you appear to have done it justice.
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Old 05-26-2006, 06:43 AM
  #116  
Franny
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Awww... Thanks! I'll let you know how it flys. Should be schweet! I have a little build/modify thread here: http://www.wattflyer.com/forums/showthread.php?t=3234

Franny
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Old 05-28-2006, 04:18 AM
  #117  
Big Oakden
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Well all, I have just about finished my Discus 4m, converted to Electric.
I have a thread here on Wattflyer, and am part of another on RCU.
both are listed as 157" Sailplane.

I will know if this bird leaps out of my hand in two weeks. I should not have trouble getting her airborne at just over half throttle. AUW will be about 9-10lbs. When I get her done this week, I will weigh her for the final time. Only thing left to do is mount the last spoiler servo, the coverplates, switch, and ESC.

Am also trying to figure out how and where I will put cooling vents for the motor, ESC and the batteries.
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Old 05-28-2006, 07:36 PM
  #118  
Franny
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Hi Big,

What I did for my BOT was to hinge the back of the canopy and add a micro servo controlled by the throttle and hooked to the front. When the throttle goes up, so does the canopy and it acts like a scoop. Then, when you are soaring about, and the throttle is down, so is the canopy. It seems to work pretty well, but I haven't flown it yet. Check out my last couple of posts in my link above. Bench test seem to go well. Just a thought...

Franny
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Old 05-29-2006, 07:53 PM
  #119  
mars
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I'll add my newest.
Windrider Bee, modded.
Windrider Bat, heavily modded.
LEG Mig3
LEG H1
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Old 06-09-2006, 03:00 AM
  #120  
cebola
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This is Hyperbolic Lady, my own design.

The models has 117" of wing span, is powered by a 400 QRP Hyper, and wheigts only 20oz.
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Old 06-09-2006, 06:02 AM
  #121  
ericthetree
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nice looking bird
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Old 06-09-2006, 12:15 PM
  #122  
AEAJR
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Originally Posted by cebola View Post
This is Hyperbolic Lady, my own design.

The models has 117" of wing span, is powered by a 400 QRP Hyper, and wheigts only 20oz.
Wow! Woul you tell us about that plane? 117" and 20 oz would be amazing without the motor but with! Amazing!
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Old 06-09-2006, 12:16 PM
  #123  
Jason T
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cebola,

Wow, 117" wingspan and 20oz. Very nice!
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Old 06-09-2006, 04:30 PM
  #124  
cebola
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Originally Posted by AEAJR View Post
Wow! Woul you tell us about that plane? 117" and 20 oz would be amazing without the motor but with! Amazing!
I may confess that this motor is a old vertion of brushed's, but has enough autority to climb Hyperbolic Lady.

In fact there are big differences betwen models for Brushless engines and brushed one's.

But at this mommet I am building another one for Brushless, whit wing spars in Carbon Fiber.

Cebola
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Old 06-09-2006, 10:26 PM
  #125  
Red Scholefield
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Originally Posted by cebola View Post
This is Hyperbolic Lady, my own design.

The models has 117" of wing span, is powered by a 400 QRP Hyper, and wheigts only 20oz.
Magnificent!!!! Do I count THREE dihedral changes in just one wing panel - not counting the center? I see where you got the name.

20 oz is really light - any special techniques employed other than lots and lots of holes?

Red S.
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