I did it intentionally so that this model can not fly without the help of the upper rotor. If you want something simple and pleasant to fly, Gyrodyne this is not for you. If you are looking for something challenging and stimulating, continue reading.

The back two pushing counter-rotating engines are throttled just 250 hp each, so they do not provide enough speed to make small wings able to fly the model. The upper rotors instead are intentionally slightly over-dimensioned (1000 HP) to allow you to explore the possibility of short takeoff and low-speed flight.

Since we axis control entirely operated by movable surfaces, obviously can not sit still in the air, they take off and land vertically. That will be a next target.

It has a low-speed flight, but it is very critical. For takeoff, rear engine (Thrust) to 100% and higher engine (VTOL) to the second from top notch. reached a certain speed, slightly increase the upper rotor, which will cause the lifting of the nose and the entire model. Immediately after putting the rotor to the second notch. Play around a little with the rotor control up and down to see the possibilities, and you can try to decrease the gas Warning maneuvering at any speed, at any time you can find yourself upside on the back, and at that point the disaster is almost certain .

VTOL upper rotor
Thrust rear engine
Pitch, roll and yaw as a normal plane (but with caution)