Aircraft coordinated turn with lagged roll rate

US4392203A · kind A · utility

Assignee

• UNITED TECHNOLOGIES CORPORATION · US

Inventors

• William C. Fischer · Monroe, US
• Don L. Adams · Bartlesville, US
• David J. Verzella · Guilford, US
• Stuart C. Wright · Woodbridge, US

Key dates

• Filing date: Mar 30, 1981
• Grant date: Jul 5, 1983
• Expiry date: Mar 30, 2001

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D1/0858
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An aircraft automatic flight control system having a roll channel (FIG. 1), a yaw outer loop trim system (bottom of FIG. 2) and a yaw stability inner loop (top of FIG. 2) provides proportional (129) and integral (114) lateral acceleration inputs to the yaw trim system (106, 93) during coordinated turns, and provides proportional (130) and lagged (131) roll rate inputs to the trim system to provide initial coordination to the turns.