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June 20, 2004 notes   Good intentions, bad results   If anyone
missed the mid-week update I did about the perfect flight of the
small vehicle, go read that first.  We had problems trying to
hover the big vehicle this weekend.   A minor improvement I have
made to the laptop software is to display the dilution of
precision (PDOP) number from the GPS on the status light,
because previously it would have been green even if it was
running with very poor coverage.  I need to spend some time and
collect more GPS diagnostic information, like satellite S/N
ratios, but I’m not sure if I want to add a lot more traffic to
the serial port during actual run times.   The first problem we
ran into was installing the batteries in the new battery boxes
on the big vehicle.  We have started using upset thread lock
nuts for a lot of things now, but when rapidly tightening them
down on one of the battery clamp studs, it galled onto the stud.
 We use stainless for ever