So i dont know if anybody knows alot but there these engines called unducted fans they are these extreme high bypass turbofans that have propellers connected to their turbine section and technicaly have huge fuel efficancy gains over normal jets, i decided to put it on a flying wing and it was baisicaly uncontrolable until only recently !!!!!!!!!!!!!!!!!!!!!!!!CONTROLS GROUP 8 IS ENGINES THE TURN ON AT FULL THROTTLE AND REQUIRE DE ACTIVATION OF 8 AFTER THERE ON 1 is propeller pitch and yaw control 2 is landing lights, When taking off pitch should be around 60 or 70 for most controlled acceloration, and high 70s is good for cruise. Keep in mind that the downward center of thrust keeps the plane in trim when pitch is changed. If anything please dont go below like 175 mph or else the front wing will stall and then you will crash