公开(公告)号：FR2601326A1

公开(公告)日：1988-01-15

申请号：FR8610219

申请日：1986-07-11

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWLETT JAMES J ,  ALANSKY IRVIN B

IPC: B64C27/57 ,  G05D1/00 ,  G05D1/08 ,  B64D31/06 ,  B64C27/12

公开(公告)号：GB2192163B

公开(公告)日：1989-12-13

申请号：GB8616150

申请日：1986-07-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWLETT JAMES J ,  ALANSKY IRVIN B

IPC: B64C27/57 ,  G05D1/00 ,  G05D1/08

公开(公告)号：DE3622031C2

公开(公告)日：1995-11-30

申请号：DE3622031

申请日：1986-07-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWLETT JAMES J ,  ALANSKY IRVIN B

IPC: B64C27/57 ,  G05D1/00 ,  G05D1/08 ,  B64D45/00

公开(公告)号：FR2601326B1

公开(公告)日：1988-10-21

申请号：FR8610219

申请日：1986-07-11

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWLETT JAMES J ,  ALANSKY IRVIN B

IPC: B64C27/57 ,  G05D1/00 ,  G05D1/08 ,  B64D31/06 ,  B64C27/12

公开(公告)号：DE3622031A1

公开(公告)日：1988-01-07

申请号：DE3622031

申请日：1986-07-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWLETT JAMES J ,  ALANSKY IRVIN B

IPC: B64C27/57 ,  G05D1/00 ,  G05D1/08 ,  B64D45/00

公开(公告)号：GB2192163A

公开(公告)日：1988-01-06

申请号：GB8616150

申请日：1986-07-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWLETT JAMES J ,  ALANSKY IRVIN B

IPC: B64C27/57 ,  G05D1/00 ,  G05D1/08

Abstract: During the first few seconds after an engine failure, autorotation is established automatically by an Automatic Flight Control System, thereby avoiding undesirable transients and allowing the pilot time to react. The system has collective, pitch, roll, and yaw channels and receives engine failure signal, and signals of rotor speed, a rotor speed reference value for autorotation, rotor acceleration, load factor limit for the helicopter, a load factor as measured, pitch rate, airspeed, roll angular acceleration, yaw acceleration, yaw reference signal of desired yaw attitude during autorotation.