I have a turbine powered Starfire that I have been flying for years. Would it help to tell you my throws? Mine flys fine off grass. Even very thick grass. I recently took off from grass so thick you could not see the wheels or struts. Looked like a very low pass. This is my back-up jet. Been through the war if you know what I mean. Has short take-off on pavement- 150 ft maybe. And then it goes straight up as far as you want it to go. Top speed aroung 160-170 mph maybe. Lands around 25-30 mph. I have landed and stopped within 250 ft. Usually take about 400 ft mostly do to uneven braking of BVM brakes. It's a classic.