(greg) wrote in message . com...
I'm looking for comments and suggestions specifically about using a
Fujitsu LT C-500 as a backup tool for approach plates using Jeppview
with Flightdeck.
snip
I'm also trying to figure out the best way to power it off the
airplane electrical system. In most cases it would be in an older
cessna with only the 28V DC lighter available for power.

I thought about getting an AC inverter rated for 24V-28V input like
the KV-150T on this webpage: http://www.maxxprod.com/mpi/mpi-25.html.
Can anyone think of any problems with that idea? Other than ending up
with lots of cables... It seems alot harder to find an adapter to
adapt directly from the 28V DC outlet to the back of the laptop.

I would not use the AC inverter. AC inverters are often poorly
designed and hency quite noisy (in the electrical sense), so they may
cause problems with your radios. Also, as you point out - there are
more cables, which is always a hassle in the cabin.

The good news is the Fujitsu PC really operates from a DC voltage. A
DC-DC regulator/converter should be available that will bring the
aircraft 28V on the cigarette lighter to the 12,14, or 16V required by
most laptops.

-Nathan