iFly GPS Forum

It may not be exactly what you want, but this one is already there. The "ETE to Waypoint" always shows the next waypoint (if any) and counts down until passage, at which time it resets and starts the countdown to the next waypoint. If there is no (next) waypoint entered, the waypoint instrument(s) disappear. Also, the iFly dedicated hardware platforms are already capable of steering an autopilot in experimental aircraft.

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Jeff Nokomis Clark, Mooney M20G, iFly app on ASUS ZenPad Z8s, ASUS ZenFone AR, ASUS Windows 10 tablet, Stratux ADS-B w AHRS

Yeah, after I posted I saw that you already had the ETE instrument up, so I read a little closer and figured out what you were asking. My 430 does exactly that; it anticipates the turn and tells you (and the autopilot) to "TURN NOW" before you cross the waypoint such that a standard rate no wind turn will roll you out on the new course line. I don't know how an autopilot connected to iFly handles this now; I don't know if it anticipates the turn (red line) or overflies the turn (blue line) before making a course change. It would certainly be nice if it anticipated it, especially on an approach where course guidance is much more critical. In slower aircraft, overflying the waypoint (instead of anticipating the turn) on a 90deg turn to final in a stiff crosswind can blow you far enough off final to require going missed.

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Jeff Nokomis Clark, Mooney M20G, iFly app on ASUS ZenPad Z8s, ASUS ZenFone AR, ASUS Windows 10 tablet, Stratux ADS-B w AHRS