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Post by Flocker on Jul 10, 2016 18:30:24 GMT
On the GMC 305 control panel, does the APR button serve a purpose? We tried to use it this morning, with no luck.
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Post by Flocker on Jul 11, 2016 0:47:52 GMT
Apparently, the APR (Approach) button is used to intercept the glide slope after dropping out of the clouds. We were above the GS when we tried to activate it. Not 100% sure on this, but we'll test the theory during our next flight.
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Post by Cluemeister on Jul 11, 2016 1:40:24 GMT
I just continue to be amazed by the Garmin G3X. Keep posting everything you learn, so we don't have to relearn it.  |
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Post by mackattack on Jul 11, 2016 1:48:15 GMT
It will only pick up he glide slope and couple the AP to it if you have the 255 nav/comm. if you only have the comm unit it will not function. Or so I'm told. The ILS broadcasts in the NAV frequencies.
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Post by Flocker on Jul 11, 2016 2:14:09 GMT
Understood, but we were not on an ILS approach... am I misunderstanding something? We were on the RNAV (GPS) Y Rwy 21L Approach
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Post by mackattack on Jul 11, 2016 6:14:15 GMT
I could be wrong but I think you need the NAV to pick up the glide slope. Or at least to couple to it.
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Post by Flocker on Jul 14, 2016 19:04:44 GMT
Another AP question. How does the VNV button work? I set up a vertical navigation profile (1,000' above the waypoint at 3 miles out) and tried to activate the approach using VNV. Nothing happened. Am I missing something?
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Post by Flocker on Jul 14, 2016 21:43:05 GMT
I could be wrong but I think you need the NAV to pick up the glide slope. Or at least to couple to it. Confirmed by Tecnam this afternoon. |
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Post by Flocker on Jul 14, 2016 21:45:51 GMT
Another AP question. How does the VNV button work? I set up a vertical navigation profile (1,000' above the waypoint at 3 miles out) and tried to activate the approach using VNV. Nothing happened. Am I missing something? Tecnam provided the following response to my question this afternoon: "Vertical Nav will allow you to follow vertical navigation computed by the GPS. You can set in your settings to have vertical navigation to have you arrive at so many miles from an airport at a certain altitude AGL or MSL and set a decent rate you like. When approaching the calculated location for a decent to begin to match this profile a strip with VNV will appear just to the left of your altitude tape. If you engage VNV mode on autopilot it will follow that profile." I'll give it a shot tomorrow. |
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