I've got a Cambridge GPS, GPS Nav, LNAV and Aero 1550 running CEGlide.
Here's my back-up plan...
Carry my old Garmin 12xl + cables to connect to Aero. Turn on Garmin before
launch.
If any of the Cambridge stuff fails, unplug Aero from Cambridge, & plug Aero
into the Garmin. Turn in Garmin at end of flight.
Garmin traces were acceptable @ regionals summer before last--don't think
that's changed.

Brent

"Chip Bearden" wrote in message
om...
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approaches, etc., for a primary flight recorder. I'm interested in
knowing what makes sense for a BACKUP GPS flight recorder that will:

1) act as a "dumb logger" (i.e., connect it to a separate battery,
switch on, and forget) for backup purposes

2) in the event of a failure of the primary flight recorder, could IN
FLIGHT be connected to my LNAV and/or Pocket NAV/Compaq WITHOUT
compromising the integrity of the record in the backup recorder. This
could involve swapping cables from one device to another (my current
GPS/NAV is accessible in the cockpit now) or making up a special "Y"
connector and/or switch.

I drove my LNAV with an early Magellan "fish finder" GPS receiver for
years before I bought the Cambridge flight recorder so I'm not averse
to carrying an independent backup flight recorder PLUS a cheap
handheld that could be powered up to provide GPS info to the LNAV
and/or PocketNAV for navigation.
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