HI guys, I have a question about autopilots. Is it possible to add a LVL CHG capability to any autopilot(ias hold by pitch)? I was wondering how dificult could be to change or edit an autopilot already created. Any sugestion? is there an easy tutorial around to learn? Best.Juan.

It's not something FS supports in it's built-in autopilot.You would have to write your own replacement autopilot.

I've been trying the same thing myself for a panel I've been tinkering with for a while. The exact XML I came up with is convoluted (probably unnecessarily so :( ) but "works"(kind of) using a loop statement inside a text string by comparing the (A:AIRSPEED INDICATED,knots) vs (A:AUTOPILOT AIRSPEED HOLD VAR, knots) and incrementing or decrementing the vertical speed using KEY_AP_VS_VAR_INC/DEC. With the loop terminating once the ac altitude gets within 200' of the preselected altitude. I say it kind of works as it's a bit lively in terms of the rate at which it varies the VS, so I think I'd describe it as a work in progress. If I ever get it working I'll let you know. (I know there are commercially available dl's with LVL CHG feature so it's obviously a problem that someone else has already solved - or perhaps they completely rewrote the autopilot, way beyond me)

A gauge by Rob Barendregt should be available in the library ( once back up ) named RCBfl-10.zip. It works very well and uses sampling so it does not "overshoot" the intended climb rate.Roman

Hi,Not here, but still on flightsim.com.Jan