ORIGINAL: Bo Ingram
I am using 60oz digitals. The ailerons are not that big on the DA and while it's a fairly fast airframe, I would look more toward an improperly installed CA hinge....just can't see flutter if your hinge gap was not large. Did you do a pull test before the flight?
BTW...be sure to brace the long rudder pushrod.
Bo
Also I am not using Digital servos. 6 volts. Futaba 3004's standard servos = 57 oz.