On Tuesday, September 4, 2012 10:31:45 PM UTC-4, Uncle Fuzzy wrote:
...with the current flight computer (Borgelt B100) and the
old Terra radio, we can't even get an eight hour flight in
without draining the TWO 12 amp hour batteries.

Hint: the problem is not the B100 ;-)
Unless you still have the original GPS engine and don't
use it in "GPS powersaver" mode...
Yikes, I designed that in ~1989-1990 !

See ya, Dave "YO electric"