Absolutely not. This is a genuine trace from my logger! The logger is in the
glider, still sealed in position ready for inspection. I go on holiday with
a lot of equipment but a vacuum pump is not one of them! The GPS altitude
echoes the pressure altitude in a similar manner but on a scale of perhaps
1:10

Ian



"Bruce Greeff" wrote in message
...
tango4 wrote:
I'm thinking of claiming a record. I have a valid IGC trace aquired
recently
in the Pyrenees during which I climbed to 79275' ( yes seventy nine
thousand
two hundred and seventy five feet ) after taking off at 8228' - a 71000
plus
gain of height. The logger was sealed in the glider, a nimbus 3 t, and
still is as is the trace, the flight was witnessed.

Although only dressed in shorts and t shirt I suffered no high altitude
effects and the EDS O2 system worked perfectly. Lift was frequently over
30
m/s although I'm damned if I can remember it being that good.

Anyone interested in the trace can mail me for a copy ( 40 kb )

Regards

Ian


You would not have used one of those little old vacuum pump things to
prove a
point would you? ;-)