Hi,

A word of warning to Madness II buyers, mine was brand new this week with YS 63fz in the nose. The tailplane, elevators and rudder are built extremely lightly in fact too lightly to have any structural strength. First flight at a very low speed ,the tailplane fluttered and folded. Upon inspection there was no glue at all on three of the tailplane fillets. I cut away the covering and installed a 5mm carbon spar and then braced the tailplane to the fin using 2mm carbon rod. Having its second flight today, I tried slow knife edge and the tailplane fluttered again and balsa broke away from the hinges. The elevator also broke away from the hinges leaving it dangling from a 3mm control rod. The aircraft however survived and glided in to land. It seems to me that the pursuit of lightness has taken over from structural strength. The flutter was not caused by inadequate servos we had 9202 on all tail surfaces and Robbe digital on ailerons. I understand that my kit having a built up rear end has been replaced by a solid structure to try and cure the problem however my kit was new after xmas. I attach some pictures.

Hope you have more luck than we did.