Re: Garmin 430 rquestion- does the approach always have to be activated via "activate approach"?


"Sam Spade" <sam@xxxxxxxxxxxx> wrote in message news:aI_tj.2986$f8.2877@xxxxxxxxxxxxxxx
Stan Prevost wrote:

FPL, push small knob to get cursor, scroll down to airport, CLR, ENTER to confirm, FPL to get back to NAV page.

vs

PROC, ENTER.

True enough. But, the bit of extra stuff earlier on is none the less easier and I don't have to worry about making sure I am where I am supposed to be if I "activate."



(and from another post)
I took another look at it and disagree. Once the IAP is selected removing the airport can be done prior to a critical phase of flight, then everything sequences without pilot intervention

Sam, I have reread your posts trying to make sure I understand your points. First of all, I didn't know the Garmins would self-activate, so that is something new I have learned from this thread. More on that later. I understand that you prefer to perform a more complex task rather than a two-button-task if you can move the task to a less busy period of the flight. But the "without pilot intervention" part only happens if you were already direct to the IAF at the time you deleted the airport waypoint, or deleted the airport waypoint to make the navigator sequence to the IAF when instructed to proceed direct to the IAF. Either way, it is the same result as the simpler activation procedure performed at the same point in time. If that is not true, then I am missing something in the scenario. Perhaps a simple example would help.

As far as I can determine, the self-activation feature is not mentioned in the Garmin manuals. I believe another poster said the same. Personally, I am a bit uneasy about using undocumented "features" of software in critical situations. For one thing, we don't really know what is happening and if it has even been tested. Does it do the required RAIM predictions prior to the FAF? How would you know, unless it fails? Does this "feature" work under all conditions? Another thing, you don't know if the "feature" will still exist, or work the same way, if the software is updated.

I wonder what the response would be if one called Garmin and asked if they approve using the navigator this way? Or the FAA?

Stan

.

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