: How do you feel about blowing $10K, $2K at a time as you repeatedly repair your
: electromechanical moving map (HSI)? Well, OK, maybe a slight exaggeration, and
: of course there's no subscription cost for the HSI.

: Anyway, the HSI presentation is compelling. I like the HSI-style presentation on
: my GNS480. Sometimes it's more informative than looking at the map page.

: In the larger view, electromechanical HSIs are the equivalent of buggy-whips.

I'll agree with that. I was referring more generally to normal old-school
(VOR-indicator, DME, etc).. not the fancier old-school like remote slaved compasses,
HSI's, etc. Those *are* electromechanical nightmares to keep running. Something like
a VOR/GS indicator isn't that complicated. It also doesn't have a subscription....

Just as an aside, many of the moving maps that I've seen are much more
difficult to follow accurately than old-school methods. I'm sure it can be done well
(I just haven't seen it). As a quick, "reset-your-situational-awareness," or to
visually see things like airspace boundaries, moving-maps are wonderful. To keep the
needle centered on an airway or LOC, they're useless without augmentation.

-Cory

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* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
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