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teeth6
Senior Member Joined: 10 Mar 2014 Status: Offline Points: 741 |
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Posted: 06 Jan 2020 at 6:23pm |
I noticed a behavior on the IFD which I’d like an explanation of. I see the same behavior on the simulator and there must be a logical explanation.
I was on a flight plan to SFZ and on vectors for the GPS 5 approach. The approach was activated and then I was told “approach clearance cancelled,” proceed direct FOSTY and hold as published. FOSTY is where the hold is on the missed approach and was listed in the plan so I highlighted FOSTY and hit direct to but instead of of FOSTY coming up to accept the airport SFZ came up. I thought maybe I highlighted the airport by mistake so I again selected FOSTY with the same result. I ended up just inserting a new waypoint FOSTY prior to where the approach began and hit direct to which worked, but I’m wondering why the IFD kept changing my selected waypoint in this scenario.
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dmtidler
Senior Member Joined: 12 Feb 2016 Location: USA Status: Offline Points: 616 |
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From page 1-36 & 1-37 of the latest IFD500 Series Pilot Guide: If a different waypoint is
desired, there are a number of ways in which the proper waypoint can be entered
in that Direct-To dialog box:
It appears what you experienced is the way it was designed. Operationally, it appears that if you have Auto Enable Missed - On in the current user settings, a direct-to any fixed point in the missed approach procedure may be accomplished after crossing the FAF. With Auto Enable Missed - Off in the current user settings, a direct-to any fixed point in the missed approach may be accomplished after selecting Enable Missed (which will be available at LSK 4 after crossing the FAF). Edited by dmtidler - 06 Jan 2020 at 8:06pm |
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teeth6
Senior Member Joined: 10 Mar 2014 Status: Offline Points: 741 |
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Thanks. I figured it was behaving as designed and reading that explanation makes sense. I didn’t realize the the missed approach procedure had to be active to go direct to the waypoint.
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chflyer
Senior Member Joined: 24 Jan 2013 Location: LSZK Status: Offline Points: 1022 |
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Thanks Darren. Very useful response, especially the operational implication of Auto Enable Missed setting in this case!
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Vince
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dmtidler
Senior Member Joined: 12 Feb 2016 Location: USA Status: Offline Points: 616 |
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Three more observations regarding direct-to missed approach waypoints:
Edited by dmtidler - 07 Jan 2020 at 11:39pm |
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