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Cabin pressure control system and method that accommodates aircraft take-off with and without a cabin pressurization source

US7462098 - Dec 09, 2008

Method for determining roll rate gyro bias in an attitude heading reference system

US7430460 - Sep 30, 2008

Low-altitude flight guidance system, warning system for low-altitude flight guidance, warning generator for low-altitude flight guidance and method for low-altitude flight guidance

US7379796 - May 27, 2008

System, method and apparatus for searching geographic area using prioritized spatial order

US7363121 - Apr 22, 2008

Unmanned helicopter, takeoff method of unmanned helicopter, and landing method of unmanned helicopter

US7195200 - Mar 27, 2007

Engine thrust management - new design architecture

US20050077434 - Apr 14, 2005

System and method for reducing the speed of an aircraft

US6819266 - Nov 16, 2004

Method for performing an automated category a approach maneuver

US6629023 - Sep 30, 2003

Glide slope tracking system

US6575410 - Jun 10, 2003

Autopilot for aircraft having automatic descent function in the event of cabin depressurization

US6507776 - Jan 14, 2003

Ground proximity warning system, method and computer program product for controllably altering the base width of an alert envelope

US6484071 - Nov 19, 2002

Methods, apparatus and computer program products for determining the vertical speed of an aircraft

US6430479 - Aug 06, 2002

Method and apparatus for providing adaptive altitude preselector units

US6366836 - Apr 02, 2002

Arithmetic processing method and system in a wide velocity range flight velocity vector measurement system using a square truncated pyramid-shape five-hole pitot probe

US6336060 - Jan 01, 2002

Methods, apparatus and computer program products for determining the vertical speed of an aircraft

US6324448 - Nov 27, 2001

Autonomous landing guidance system

US6311108 - Oct 30, 2001

Method of automated thrust-based roll guidance limiting

US6282466 - Aug 28, 2001

Banked flight stall warning device and method

US6169496 - Jan 02, 2001

Process and device for aiding aerial navigation

US6163743 - Dec 19, 2000

Method for controlling an aerodyne for the vertical avoidance of a zone

US6161063 - Dec 12, 2000

Positioning and ground proximity warning method and system thereof for vehicle

US6157891 - Dec 05, 2000

Compensation for rotorcraft pitch axis control saturation

US5971325 - Oct 26, 1999

Method and device for vertical guidance of an aircraft

US5957412 - Sep 28, 1999

Flight crew response monitor

US5900827 - May 04, 1999

Device for maintaining the speed of an aircraft within a particular speed range

US5884870 - Mar 23, 1999

Vertical performance limit compensator

US5730394 - Mar 24, 1998

Correlative filter for a synchrophaser

US5715162 - Feb 03, 1998

Aircraft vertical position control system

US5695156 - Dec 09, 1997

Apparatus for decoupling a torque loop from a speed loop in a power management system for turboprop engines

US5274558 - Dec 28, 1993

Aircraft information system

US5260702 - Nov 09, 1993

Flight crew response monitor

US5243339 - Sep 07, 1993

Method of analyzing and predicting both airplane and engine performance characteristics

US5070458 - Dec 03, 1991

Apparatus and method for a smooth transition between calibrated airspeed control of an aircraft and mach number control of an aircraft

US5056027 - Oct 08, 1991

Negative climb after take-off warning system

US4951047 - Aug 21, 1990

Apparatus and methods for generating aircraft control commands using nonlinear feedback gain

US4862372 - Aug 29, 1989

Flight control system and method

US4849900 - Jul 18, 1989

Excessive altitude loss after take-off warning system for rotary wing aircraft

US4818992 - Apr 04, 1989

Method and device for assisting height holding in air navigation

US4773017 - Sep 20, 1988

Descent flight path control for aircraft

US4709336 - Nov 24, 1987

Automatic flight control system

US4645141 - Feb 24, 1987

Asymmetric torque switching for aircraft autopilot

US4638229 - Jan 20, 1987

Automatic deceleration of aircraft during descent

US4633404 - Dec 30, 1986

Automatic prediction and capture of a preselected altitude for aircraft

US4609988 - Sep 02, 1986

Vtol altitude hold system with automatic ground effect compensation

US4603388 - Jul 29, 1986

Cruise airspeed control of aircraft altitude capture

US4589616 - May 20, 1986

Automatic limiting of helicopter engine torque

US4564908 - Jan 14, 1986

Leading edge estimator for navigation system

US4558418 - Dec 10, 1985

Altitude preselect system for aircraft without air data computer

US4490794 - Dec 25, 1984

Optical digital servo control system

US4443853 - Apr 17, 1984

Aircraft pitch stabilization apparatus

US4442490 - Apr 10, 1984

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Aircraft (19)

System and method (9)

Apparatus and methods (6)

Engine (4)

Navigation (3)

Descent (3)

Method and device (3)