I 'd like to report my experience with this scratch build.
I needed an aerial platform with ample fuselage space since I am experimenting with UAV systems and I needed a housing for the electronics.
When I saw the fowl flyer swappable I liked the slow flight characteristics and the big accessible fuselage.
I built it with a 1200kV (I think, that or 1500) motor and a 10x4.7 propeller.
But things don't always go your way: I couldn't find two balsa sticks straight enough for the tailbooms in the local suppliers. They were all too crooked. I decided to pick up some walnut ones.
But then the tail was too heavy and in order to balance it I placed another 3S battery in the front.
But then the plane was too heavy for the wing lift and couldn't even take off properly (judging by my limited experience).
That chain of events, and two crashes from 1m high, lead me to abandon this platform.
One solution would be to move the wing further back for its balance point to match the C.G., but the mounting method doesn't easily allow for that.
Another solution would be to build a new, larger wing, but at this point I won't pursue it, since I don't feel that would guarantee results.
I think I 'll be moving to something commercial for now.
In the aftermath, it would have been nice if I knew the lift capabilities beforehand.
Thanks for the plans and the experience, though!