Its unclear what will constitute the standard fuel for General Aviation once leaded fuel is phased out by the EPA. But what is clear is that the stakeholders need to become informed and voice their opinions to the decision-makers. By Editor-in-Chief Marc Cook.
Stall flutter is the result of the elastic axis of a wings surface being aft of the aerodynamic center, resulting in instability. A vicious cycle of lift, twist, stall and lift may ensue.