Dynaero MCR airplane is performing near the same, nothing new, there are other examples, blackwing is not pioneer in this technology, itÂ´s just another all carbon composite down to the control stick and it came out lighter than anticipated.
I also want to mention that the only one who I ever heard had any type of effect by modifying the wing tip is John Miller placing Vortex generator there; he has a full report over the other side of the river (the dark side) I believe Randy also installed VG on the wing tips...
for those curious about 150hp Rotax; there is a Norwegian company who thought, regular 80hp rotax was over complicated and overkill NICE little ENGINE, so they began removing useless systems and parts to make it nicer and cleaner they came up with a pretty nice upgrade to that engine.
I have some friends here in Sweden that are building a new aircraft and as far as I heard; wing tips are only a tangible advantage; when you are flying more than 200kt or 10000ft and above; somewhere there canÂ´t recall the exact numbers, basically top end airplanes and airliners are really making use of these advantage. Rest is just cosmetic.
Their original design didnÂ´t have wing tips because it wasnÂ´t necessary, but they got hold of a Rotax turbo engine 150Hp and the airplane performs just within that range, now the plane is suited with wing tips.
AC.43.13 blah blah blah, manual, the one founded on the FAA website for accepted methods repairs; has some pretty good suggestions as to how to repair this. it ShouldnÂ´t be a problem, just like T-jayÂ´s pictures here.