I remember asking about this plane when I saw them flying at FPV years ago and I tried to like find any info on it and can never find anything so this is awesome to finally get to see how this things built.
I've found installing the wing servos against a spar dramatically improves elevon performance. I suspect it's because the servo sits hard against it and does not flex easily in the foam. Noticed a large difference in ability to get precise flight i.e. hitting gaps.
For flush surface sanding such as the ply ribs, I stick the sand paper to the sanding with double sided tape, half the paper grit up and the other half grit down. This ensures the core is not sanded but the ply rob will come down exactly flush with the core. Except that the exposed grit always seems very slightly proud, so you still have to watch it carefully and stop as soon as it's right, but it means that you can hold the block on the foam surface to guide the sanding without it removing any foam.
I too would like to build this aircraft, but I can't find enough details of the design anywhere. I don't need much, just some basic details of the airfoil you used, planform and CofG is enough. BTW, I say your 'tube on blended body aircraft and have been tracking through the world of obscure aerodynamics myself. I am currently building a Prandtl wing (no tail at all, literally just a plank!), the Verhees Delta and the Horton wings. But the most interesting so far is the Facetmobile by Barnaby Wainfan, where he makes a very strong case for his low aspect ratio aircraft. Saw him at Oshkosh, and you can check out his talks on his website. Oh, and finally. I see you going to incredible effort to fit the carbon spar into the wing. I have very much easier way to do it if you're interested - around ten minutes per wing and flawless results.
What would you do without all those cans... pinch some weights from the local Gym? haha.. I have made small weights from melting lead sinkers and old lead from house rooftops into dirt moulds in the back yard, I have even used pots n pans filled with water just to hold down stuff while the glue dries. This is very interesting to see how it all goes together, I make R/C model boats from scratch so this is intriguing to me.
So how and why does the balsa trailing edge improve efficiency? Is it just having a sharp edge? Because for that a smaller piece of balsa would have been sufficient...
Yes, just having a sharp edge. On the sections where the surface is moving I make the whole surface balsa for stiffness, on free edges yes a much smaller piece is sufficient and is my norm.
I remember asking about this plane when I saw them flying at FPV years ago and I tried to like find any info on it and can never find anything so this is awesome to finally get to see how this things built.
I am astonished. This really is truly exceptional work and creativity!
*Especially the stainless steel kitchen bowl part!!👍🤣
AMAZING BUILD!!!
wow, I watched fpv videos with this plane before, so gorgeous
I've found installing the wing servos against a spar dramatically improves elevon performance. I suspect it's because the servo sits hard against it and does not flex easily in the foam. Noticed a large difference in ability to get precise flight i.e. hitting gaps.
This is a very interesting observation. I appreciate you passing it along to me.
For flush surface sanding such as the ply ribs, I stick the sand paper to the sanding with double sided tape, half the paper grit up and the other half grit down. This ensures the core is not sanded but the ply rob will come down exactly flush with the core. Except that the exposed grit always seems very slightly proud, so you still have to watch it carefully and stop as soon as it's right, but it means that you can hold the block on the foam surface to guide the sanding without it removing any foam.
WOW VERY COOL, make building as plane look easy,, ever thought bout scaling it up a bit, design your own plane,,, nice job
More than thought about it....
I too would like to build this aircraft, but I can't find enough details of the design anywhere. I don't need much, just some basic details of the airfoil you used, planform and CofG is enough.
BTW, I say your 'tube on blended body aircraft and have been tracking through the world of obscure aerodynamics myself. I am currently building a Prandtl wing (no tail at all, literally just a plank!), the Verhees Delta and the Horton wings. But the most interesting so far is the Facetmobile by Barnaby Wainfan, where he makes a very strong case for his low aspect ratio aircraft. Saw him at Oshkosh, and you can check out his talks on his website.
Oh, and finally. I see you going to incredible effort to fit the carbon spar into the wing. I have very much easier way to do it if you're interested - around ten minutes per wing and flawless results.
Very thorough, nice job
Did I miss something? How did you make the airfoils?
Good stuff bro keep up the amazing work
What would you do without all those cans... pinch some weights from the local Gym? haha.. I have made small weights from melting lead sinkers and old lead from house rooftops into dirt moulds in the back yard, I have even used pots n pans filled with water just to hold down stuff while the glue dries. This is very interesting to see how it all goes together, I make R/C model boats from scratch so this is intriguing to me.
Any chance of getting access to plans or 3d models of the Grausgans?
Cool stuff. Please also share weight of your finished part; to compare against other techniques? Thank you
So how and why does the balsa trailing edge improve efficiency? Is it just having a sharp edge? Because for that a smaller piece of balsa would have been sufficient...
Yes, just having a sharp edge. On the sections where the surface is moving I make the whole surface balsa for stiffness, on free edges yes a much smaller piece is sufficient and is my norm.
Nice work!
Where did you get the epp from??
Thanks.
windcatcherrc.com
Bro. Where do you get the blue prints for the design? Can we have them too?
Do you have build details for your ekranopla?
Great vid. Where do you source your epp?
WindCatcherRC
@@thinkflight ah thanks
What dremel tip do you use to make your spar channels?
5/8ths round coarse sander
Liked and subbed.
Хватит мерить ногами и пальцами! Какой размер в сантиметрах?