Papa3 wrote:

Martin,

All good points. However, I think (for example) the issue of the number of
data points is something for the market to decide. I'm sure there are
plenty of folks for whom an 11 hour trace is more than sufficient. At the
end of the day, once the standards are "reasonable" (let's not worry exactly
what that means for a moment) , market forces will dictate what is
available.


I don't agree these are good points. I did all my distance badges using a
Volkslogger for documentation, while I was using my good old Garmin 12 for
navigation, except the silver distance, for which I used a camera and a
barograph. For all these flights the old Garmin 12 would have been fairly suffcient.
It is configured with a recorded point every 30 seconds, which allows for
more than 8 hours, no flight reached this duration. As I didn't knew
how the Volkslogger detects that I passed a turn point, I checked it
on my Garmin 12, so spending at least 30 seconds in the observation
zone. I found it a very acceptable penalty. As for the overwriting
of the track log on the Garmin, this is a selectable feature, you
can also choose to stop recording when the memory is full. Anyway
I don't understand why you would want to keep several flights
recorded in the unit when trying a badge distance, if your last
flight is a success, you want to download it immediately, just in order
to verify it is really a success, otherwise, if you know it was not
a success (e.g . you didn't round some turn point), there is no
problem with overwriting this track log. And the argument about
uploaded fake track logs is defeated by the fact that each recorded
point has a time stamp, while uploaded tracks logs have their
time stamps zeroed. So I think that even the sealed box is not
necessary.