ORIGINAL: Doug Cronkhite
ORIGINAL: Ryan Smith
Correct me if I'm wrong, Doug.
My thought is that they are looking for a way to increase the wing area of the airplane. It has always been my understanding that winglets reduce the amount of vorticies present at the tips, making the outer 20% or so (I believe), more effective. Looking at the numbers, I think that they are making the wing smaller in area for both better snaps, and also because they are relying on the canalizer for a lifting surface. I would conclude that they are trying to increase effective wing area without actually adding it.
That's entirely possible Ryan. I know Christophe added the area from his canalizer into the total wing area on his Axiome, although there is some efficiency lost due to it being effectively a very asymmetric biplane.
What we REALLY need is for someone to tuft up a couple airplanes, and take a look at them in a real wind tunnel to see what's going on. I'm curious as to the effectiveness of CPLR's canalizer vs Naruke's fuselage strakes on his Asyuler External.
anyone have a CAD model... I can run it in CFD!!
I modelled up a Yak 55 in Pro/E and ran a series of simulations in a KE condition.. moved the tail up and down on the fuse... and sure enuff... with a High Tail, I got a low pressure on top (push to nose) and a low tail would cause a high pressure on top (pull to canopy) and I could put the tail where it was perfectly null... at least at a specific Beta ...
Interestingly ... with
zero beta, and rudder deflected 45 degrees.... regardless of where the tail is located, there is a nose up tendency...
on another note....
Others have commented on efficiency... funny... the fuselages are fatties, and the current Design Du Jour is a high drag rudder.....
I don't think we need any more efficiency!! lol
ORIGINAL: patternflyer1
..............I commend the designer of this airplane for thinking outside the box and trying something new. Without new ideas like this, there would be little advancement in designs. Does it work? I don't know, none of us do. Does it not work? We don't know that either. People are quick to speculate as to why things won't work though. In theory, I agree, this seems odd and theoretically, you all make sense to me.... Would love to have a plane I could chop us to try a bunch of different things on as Doug said.. Would be quite fun really.
Chris
Nice that he tried the winglets... (If in fact he has flown with them.. I dunno.,.. did he??)
But winglets are reasonably well understood... and as he has them shown will produce predictable consequences...
It is great that RC Models can evolve at a much more rapid pace than real aircraft!!! the turn around time is a couple orders of magnitude less as well as the financial risk being a fraction.. not to mention.. no human life at stake.....
But I bet the marketing department put those winglets on!!
lol