I use a RAM mount with a suction cup, 3" arm, and iPAQ cradle. It has
worked very well has stayed put on the canopy for 3+ hrs. I think this is
the way to go for a system that you can move between gliders.

You can power the iPAQ and Jacket directly from a 6 volt lantern battery.
You just need to make an appropriate cable. If the iPAQ and Jacket
batteries are fully charged, you should have enough power for as long as
there is daylight. Alternatively, if applying 6 volts to a nominal 5v input
concerns you, you can by a 12v receargeable battery at most photo shops
(including Walmart) and rig it to use a car power cord.

John Scott

"NF" wrote in message
. ..
For those of you who might like to know:

I bought
- an Compact Flash Card Expansion Pack Plus with a 920 mAh removable
battery for about 65$ / 55?,
- a Haicom HI-305N Multi-Mode GPS Receiver with Built-in SD Memory Card
(105$ + 25$ S/H at http://store.yahoo.com/semsons-inc/hamugpsrewib.html).
One of the nice things about it is a very low power consumption of only 35
mA!

The GPS is still in the mail, so i haven't been able to work with it yet.

I will also need a mount and probably an external power source - or maybe
a handful of spare batteries for the expansion pack;-)
My iPAQ had a new battery a couple months ago, together with the extra 920
mAh battery it maybe will be enough for short flights.

Thank you all for your advises, you have been very helpful!

Niels