Uploading new flight plan while AP actively flying a plan?

R

RandomSquawk

Member
Joined
Jul 17, 2020
Messages
30
Chair flying, cuz the weather sucks...
What happens if the AP is in active mode "GPS+ALT", nothing is armed, and I upload a new flight plan from ForeFlight?
 
Dynon

Dynon

Dynon Staff
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Jan 14, 2013
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Woodinville, WA
What I'd expect to happen is that SkyView's flight plan will instantly change. The autopilot might see that as a momentary disruption to the GPS flight plan, which may or may not cause it to fall down to TRK+ALT mode (if that happened, it would be annunciated both on-screen and via audio alerting)
 
R

RandomSquawk

Member
Joined
Jul 17, 2020
Messages
30
Dynon said:
What I'd expect to happen is that SkyView's flight plan will instantly change. The autopilot might see that as a momentary disruption to the GPS flight plan, which may or may not cause it to fall down to TRK+ALT mode (if that happened, it would be annunciated both on-screen and via audio alerting)
Click to expand...
I finally tried it out. Once the AP was tracking the uploaded plan, I inserted a dogleg in the current leg via foreflight and re-uploaded. HDX immediate voiced "flight plan updated" and rolled to close the gap on the new course. I tried it a couple times, with increasing XTRK errors up to 2 miles. I did not attempt to mess with the departure, destination, or non-current legs. I'm sort of wishing I had, just for testing completeness.
 
M

Marc_J._Zeitlin

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Joined
Sep 24, 2007
Messages
256
Location
Tehachapi, CA 93561
RandomSquawk said:
I finally tried it out. Once the AP was tracking the uploaded plan, I inserted a dogleg in the current leg via foreflight and re-uploaded. HDX immediate voiced "flight plan updated" and rolled to close the gap on the new course. I tried it a couple times, with increasing XTRK errors up to 2 miles. I did not attempt to mess with the departure, destination, or non-current legs. I'm sort of wishing I had, just for testing completeness.
Click to expand...
Did you end up in Schenectady?
 
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