ATPL: Control surface flutter can be avoided by:1. a high torsional stiffness of the structure.2. a low torsional stiffness of the structure.3. locating a balancing mass in front of the control hinge.4. locating a balancing mass behind the control hinge.The combination that regroups all of the correct statements is:
Question 405, Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license