Second edition covers stability, control, and autopilot design for senior undergraduates. Text divided into three main parts: atmospheric mechanics, flight dynamics, and autopilots. Includes worked-out examples and computer-aided design problems
Modern flight controllers trace roots to R/C helicopters. Gyroscopes were initially used to counteract helicopter torque. Modern systems use gyros and accelerometers for flight calculations
Aircraft stability is analyzed by separating motion into longitudinal and combined lateral/directional axes. Pitching moment coefficient (C_m) is the parameter of interest for longitudinal stability. Stability requires nose-up perturbation to be accompanied by nose-down pitching moment
New version required for firmware 4.5.0. Includes EZLANDING debug feature. Supports Artery AT32F435/7 DFU and VCP. Adds Octo X8 plus model support. Improves GPS configuration and UI design
Stabilizer provides longitudinal and directional stability and control. Can be fixed structure with movable control surfaces or fully movable stabilator. Stability requires aircraft to return to trimmed condition after disturbance
Power button checks battery level and powers controller. Flight mode switch controls between Sport, Normal, and Cine. Flight Pause/Return to Home button enables hovering with GNSS/Vision. Battery level LEDs display current status