| While the Volkslogger is excellent kit is most respects, it has
one
| drawback. It is necessary to manually erase old flights to ensure
there
| is room to store new flights. When the memory becomes full, it
stops
| recording.

True, however it will drive you mad first by beeping incessantly to
tell you that it has "less than 7 hours of memory left"! If this
happens in flight it is a simple matter to extend the interval
between recording fixes. It still records at close intervals near to
turn points and the like.

So, if Colibri has advantages, I consider that this is not one of
them . .

BTW, the Volkslogger can drive WinPilot whilst it is doing it's
official recording job. In this mode WinPilot will accept readings
at every second and save the trace too . . making one that is much
better to see in flight analysis programs. WinPilot provides a way
of sending a declaration to the Volkslogger, and getting the
official file out of it (onto the iPaq).

Cheers,

Jim Kelly.