Use the VTOL slider to pitch engine assembly. When beginning the transition from vertical to forward flight, do so slowly and at high altitude. Full transition should occur only after airspeed it greater than 180 mph. Group 1 toggles airbrakes, use at your own risk. She may look like a brick, but once you get the hang of her she'll get you anywhere. The Hummingbird came about when I got tired of the finicky placement for existing VTOL Nozzles and decided to push the limits of the new Rotors. I also kept getting warnings about low engine airflow, which is why there are so many intakes. I did get a little cheatsy with clipping, but whatever.