Ligeti Stratos

[RCrazy]

Started on a new project I've been wanting to do since I saw it, the Ligeti Stratos. Had a block of blue core left from the Viggen build so am starting there with the fusalage. Utilizing some of the techniques learned from several scratch builds. Gonna use Ed from Experimental Airlines Armen wing for the wings. Not sure if I'm gonna do a duct around the prop or not, looks cool and creates more thrust but not sure if its worth the extra work. There is a great thread in RCGroups.com on a scratch build makinn the full fuse body with sections of depron and depron wings. The thread has everything else I might need as well.

Got the rough cuts on the block today. I decided it would be easier/cleaner to cutout the canopy now instead of after shaping the contours. Now it's shape and sand time! Wish me luck.

Photos loaded backwards but you'll get the gist.

 

[engineer]

Had to look it up, but that's a neat design! Might have to make something based on that.
Keep us posted!

 

[RCrazy]

Top picture is where I used a soldering iron to hollow out fusalage. Not too sheik but did the trick. Next three are getting the wings figured out. Think they are a bit long for the fuse length but oh well. I drilled holes and epoxied two dowel rods into the back end of fuse to have a place to glue and screw the p!ywood plate for motor mount.

 

[RCrazy]

Gave the bottom of the wing and canards a contrasting color. Dug out the front of fuse to embed the canards into.

 

[RCrazy]

View attachment 29266 View attachment 29267
I snaked the servo wires through the wing and some holes in fuse foam. Tight fit for all the electronics but it fits. Might have to add a vent depending on how hot everything runs.

 

[RCrazy]

Here she is all finished. I think it's tail heavy compared to where cg of where the kit is, but my geometry is different too so we'll see. Used a Turnigy 2826 2200 kV motor with a 6x4 3 blade prop, Red Brick 30A ESC, and some 9 gram servos I had lying around. Will use a 1800ma battery. Will post video of maiden. Wish me luck.

 

[spencertrejo]

I"ve been wanting to do one of these for a while. Not sure why some of your photo's aren't showing, but definitely looking forward to seeing the finished product. Love to see flight video as well.

 

[Ron B]

reduce your pixels to 800 horizontal and try them again

 

[RCrazy]

Just reloaded them and they are there now, thanks.

 

[RCrazy]

Thinking maybe I got the motor too high. I did not build in any thrust angle but most others have not either. My CG is only about 1" in front of wing leading edge so if anything it is tail heavy. Might dial in a bit of "up" elevator. Ah the fun of scratch building!

 

[spencertrejo]

Mine did pretty much the same thing. Dialed in a lot of thrust angle, but did very little. Remember that the forward wings control surfaces will act like canards the further forward they are (meaning down well be up and up will be down). It's a tricky mix, but I'd love to see this one fly. Good luck!