the duo drone is called the dou drone due to the two Propeller engines located at the front and back of the craft. capible of VLOT this can fly almost anywere, unless you plan on taking it for a dip. its equipped with flares, lights and parachutes. so many lights that you'll say "wow, my eyes! i never thought my Computer screen would ever be such a pain to look at" to fly it you don't really need to worry about the throttle as you can just use the VLOT knob to aim more of the thrust forward. how to use: 1. turn power all the way up. 2. put VLOT all the way up (it does not need to be all the way up while flying). 3. once you are off the ground, use the trim knob to putt the landing gear up by sliding the knob up. 4. roll=roll, Pitch=pitch, yaw=yaw, and 2+2= 4, END OF CLASS . activation group 1 deploys the parachutes. have fun.