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"Quads etc HOW big? Big as this "Black Knight" perhaps? (Thinks," Chop the wings off a Jumbo, bulk order a few hundred Quadra engines, props etc, a few miles of fuel tubing.......""
"Small addition to above, why does it need a spinner? To look even more pretty? Only a pusher type spinner would be useful, they are long and thin. But this is not in my opinion a useful airframe anyrate! more than fifty years in the UAV business…"
"A more subtle possible problem,( on top of suspect scaled aerodynamics, and floppy wings etc) it has a very shiny polished finish.Looks good, and eases removal of bits from moulds, BUT the aerodynamics and lift will go to hell if it flies through…"
"Important factors are; legality of operation in proposed area of use, likely wind strengths, degree of pilot skills available,portability of airframe and necessary anciliary equipment."
"Important factors; temperature/height above sea level, likely wind strengths, portability of airframe. Legality of operation in proposed area of use. Degree of pilot skill available."
"Dornier did a tethered co-axial with 40kg payload, electric powered via the tether, from a ground station/generator mounted in a six wheel all terrain vehicle back in the 70s. German Army didnt buy!."
"Why rudder only? A glide ratio of 5/1 means a sudden arrival which will probably demolish the plane, and anything in it!.If you are at the landing site you might need more than rudder to avoid obstacles also. Have you actually flown any R/C models?"
"Mechanical mixer very easy,use the elevater servo to slide the aileron servo, from which two outputs, one to each elevon."
"Ref the Police quad in the river;I think not mechanical or electronics failure, nor pilot error,: after two years failing to get CAA permission to operate they dropped it in the river for the insurance. (If they had asked CAA before using over that…"
