It's a dual rotor attack helicopter seen in the movie Avatar! I made two, the lite and the heavy version, this is the heavy version, there's not much to say besides that it's very stable and hovers at about 24 to 25% throttle or less depending on how much fuel it has and it's capable of full forward airplane flight like a V22 Osprey. Controlls: Group 8 = turns on and off the hover controlls, hover controlls are on by default, Gear = landing gear, Pitch = forward and backward in hover mode only! otherwise it just equals pitch in plane mode. Roll = strafe left, strafe right in hover mode only! otherwise it equals roll in plane mode. Yaw = agressive quadcopter type yaw in hover mode and in plane mode it's just regular plane yaw. Throttle = throttle ......... IMPORTANT!!! to go into plane mode, from a SOLID SLOW HOVER go full throttle and deactivate group 8 then once you begin to accelerate up put the VTOL slider all the way up or forward and once above 200 mph your controls will become fully responsive and you will be able to fly like a plane! Now, to land or convert back to hover mode, throttle down to 22% and slow down, once roll controls are unresponsive activate group 8 then put the VTOL slider back to it's default mid point, then put gear out. now your in hover mode. Finnaly, line up for a landing area and pull back on the pitch control, this should slow you down, once very slow decrease throttle and land, before you hit the ground slow your self and just be careful, then once on the ground put the VTOL slider one tick away from full forward and turn off group 8. now you can taxi like a plane. I hope you like this aircraft, if you have any questions post this in the comments. Enjoy!