Flight test of a fluidic thrust vectoring flying wing without rudder

In order to control the flying wing pitching and rolling without rudder, the layout named“single engine-inverted Ⅴ-double nozzle” was proposed based on the basic bypass dual throat fluidic thrust vectoring nozzle. Then the nozzle of the layout was tested for the first time. Finally the aircraft installed with the layout nozzle had a successful test flight and the flight data were collected and analyzed. The results show that the vector angle varies linearly with the nozzle valve opening and the nozzle does not present hysteresis. The aircraft equipped with the layout nozzle can be controlled by the bypass dual throat thrust vectoring nozzle without the rudder. In the aspect of rolling maneuverability for the aircraft, the vector control is similar to the rudder. But for pitch maneuverability, the effect of vector control is weak. The angle between the two nozzles should be increased, making it more suitable for the control of flying wing aircraft.