Eric Greenwell wrote:

Perhaps I am a very special person, but I think I could remove and
replace the typical lead seal on a barograph unknown to the OO, but I
don't know how to fake an IGC file from an approved flight recorder that
would pass the verification test.

I'm sure you ARE very special Eric and you're absolutely right that a
sealed barograph is MUCH, MUCH less secure than the over-specified,
self-destructing, weakly-encrypted, kilobuck loggers the IGC mandates.

It's irrelevant to the point discussed here (fairly) consistently for
the past fortnight, however, which is that:

(1) a properly OOed COTS GPS in a lunch box is no LESS secure than a
sealed barograph and...

(2) the level of security of a sealed barograph is perfectly adequate
for the vast majority of glider flights so...

(3) Why doesn't the IGC give its imprimatur to a set of procedures which
would be internationally accepted for the vast majority of glider
flights using COTS GPS loggers right up to World champs and World records?

Since a sealed-by-an-OO barograph is accepted by the IGC as completely
adequate security for all purposes, why do we need heightened security
for GPS loggers used for those same purposes? Very few of us will ever
compete in a World Championship or set a World record. Until we do, a
COTS GPS sealed in an OOed lunchbox would be fine.

....and yes, I know YOU could unravel the seal - but then you ARE a very
special person.


Graeme Cant