Six minutes on a tank! I guess that is where the four strokes really shine. We were practicing last Sunday for a demo at the local airports full scale airshow. After a timed seven minute flight which consisted of a lot of climbs until the plane was very small, followed by some manuever down almost to ground level, I still had half a tank left. We commonly get twelve plus minuted to a flight. At a little over 16 ounces weight and the ability to turn a 14x4W at 10500 on the ground, the 82 Saito doesn't give up anything to the 60 size two strokes.