no, you wouldn't move from sailpower. For every action, there is an equal and opposite reaction. The thrust provided by the blower will provide a little thrust but if it were pointed at the sails, the sails will return the favor in the opposite direction...although with some efficiency lost due to friction and the expanding deceleration of the air as it leaves the nozzle resulting in not all of the air thrust being captured by the sail.

So, no, you would move better if you just point the leaf blower out the back.

Are you coming up for Turkey Shoot this weekend?