초록 ▼

Yaw control surfaces are provided for a jet propelled aircraft wherein a thrust augmented rudder is disposed above the jet exhaust stream and a thrust rudder tab extends downward therefrom into the jet exhaust stream with these components being cooperatively deflected to thereby generate yawing mome

Yaw control surfaces are provided for a jet propelled aircraft wherein a thrust augmented rudder is disposed above the jet exhaust stream and a thrust rudder tab extends downward therefrom into the jet exhaust stream with these components being cooperatively deflected to thereby generate yawing moments for directional control of the aircraft.

대표청구항 ▼

The combination of a twin engine jet propelled aircraft having a vertical tail and rudder yaw control surfaces and wherein the jet thrust is discharged in the rear portion of the aircraft, the improvement therewith comprising: a pair of adjacent horizontally disposed rectangular nozzles for discharg

The combination of a twin engine jet propelled aircraft having a vertical tail and rudder yaw control surfaces and wherein the jet thrust is discharged in the rear portion of the aircraft, the improvement therewith comprising: a pair of adjacent horizontally disposed rectangular nozzles for discharging the jet thrust from the aircraft; individual nozzle wedges disposed in each of said nozzles and serving to divide each nozzle exit area into a pair of separate rectangular exits disposed one above and one below each said wedge; a single vertical tail rigidly attached to the aircraft, a rudder hingedly attached to said vertical tail and extending rearward to orient the lower edge thereof directly over the path of the jet thrust stream; a rudder tab of substantially planar shape disposed at the lower edge of said rudder and disposed substantially within the same plane as said rudder and extending downward therefrom substantially intermediate the nozzle pair to a position adjacent the individual nozzle wedges; a bottom splitter plate vertically disposed beneath and intermediate the individual nozzle wedges serving to maintain the exhaust stream exiting beneath each said wedge of the individual nozzles separated; whereby, as said rudder tab is deflected cooperatively with said rudder, said rudder tab interacts with the jet exhaust stream exiting above the nozzle wedges to deflect it to a sideward direction relative to the aircraft and thereby impart a yawing force upon the aircraft and create supercirculation about said rudder, wherein said rudder interacts with the airflow passing thereover to create an additional yawing force upon the aircraft.