"Not answer to your question, but just my experience.
Every servo with potentiometer as feedback will lose its precision (or will become jerking) near center position, because of degradation of potentiometer (in the condition of vibrations will…"
"You should think about throwing heading loop out. Best result gives navigation loop over roll loop. Navigation loop is roll_setpoint = xte * k1 + dxte * k2, where "xte" is crosstrack error (should be limited to avoid circling far from path), "dxte"…"
"Hi Curt, I implemented the same system (also wonder what term to use) and did some tests in flightgear and in the air, but not takeoff/landing. When the pilot centers roll/pitch stick, the autopilot holds current pitch and slowly decrements roll to…"
"Brian,
I experienced this problem with FG2.0 and rolled back to FG1.9.1. FG2.0 doesn't wait for new values, it just hangs if you don't send enough data. So I use FG 1.9.1 because its UDP queue lag is known and avoidable."
"Brian,
I fought with latency in the begining of FG use. And I found that rising FG input frequency doesn't solve the problem completely. So I decided to add a variable to FG property tree and use it as a packet number.
"It is not an open source project. On autopilot board there are 5 serial ports (for sensors, modem and servos), FRAM (config etc), SD card slot (log). Used software: FreeRTOS, Chan FatFS (for SD).