A control device for use with an aerodynamic wing including a bar having a
fixed trim adjustment located between the bar and the user. The invention
also includes a stopper that permits the user to quickly adjust the range
of available dynamic trim. Preferably, the stopper does not lock until it
engages the control bar, allowing the user to slide it quickly and easily
to the desired location. The control systems of the invention provide a
safety depower function when the end of the fixed trim is secured to a
safety line.