GPS 430 or 480?

"Mike Rapoport" wrote in message =
ink.net...
=20
I don't know where you went to business school but, to me, it seems =
that if=20
you have an installed base of 45,000 units, then upgrading them for =
$1500=20
each is good business. Additionally they have commited to providing =
an WAAS=20
upgrade path for the 430 and have already demonstrated the hardware. =
I=20
don't know if airways will be part of the package but adding them is =
fairly=20
trivial.
=20
Mike

Yes, adding airways to the GNS-430 would be fairly trivial.
But recertifying new hardware to TSO-C146a isn't trivial,
and my point is that Garmin has the GNS-480 already certified.
I see that as reducing justification for spending money on the 430.

Upgrading the 530 to TSO-C146a capability is more certain, I think
If I were sure that 430 certification would be a low-cost spin-off =
benefit
of certifying the modified 530, then I'd swing over to your view, Mike.
Right now, though, I'm skeptical of that.
I'd be happy to be wrong, however.
---JRC---