VTOL aircraft
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
May 26, 1992
Grant Date -
N/A
app pub date -
Jan 31, 1990
filing date -
Jan 31, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A VTOL aircraft including a fuselage with four nacelles, three vertical stabilizers and a horizontal stabilizer attached to the fuselage. The fuselage and the nacelles are lifting bodies that are configured to jointly form an aerodynamic lifting body which cooperates with the horizontal stabilizer to provide aerodynamic lift to the aircraft in forward flight. Each nacelle contains two rotary engines directly driving corresponding fans which face each other and operate in counter-rotating directions. Each nacelle also contains a system of vanes located at the rear opening thereof, and actuators for extending and retracting the vanes to deflect the airflow over a predetermined range of angles from the horizontal. Each engine utilizes the dynamic pressure of the air behind the fans to provide a source of air for cooling the rotors and exhaust system. A triple redundant computerized flight control system maintains the stability of the aircraft as it transitions from one flight regime to another as well as in flight. The system of vanes alone can also be used as an apparatus for gas or fluid stream directional control.
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