לא התאפקת, אה, בוגל?
Moshe, the plane is large. I have no idea if it is stable but it looks as if it should be reasonably stable, especially since it is carrying a high wing with a tiny hint of a dihedral. As for load-bearing - probably significant, it is commodious. But then - you will pay for the capacity by requiring a larger propulsion unit which, in itself, will further impact the capacity by - inter alia - requiring more and larger batteries.