On 25 Feb, 20:04, FreeFlight107 wrote:
Sorry, but this is the sort of esoteric disscusion that actualy turns
me off to soaring.

IMHO either system is just fine, pick one and use it. Contests can do
what ever thay want, I won't participate due to several reasons. Badge
flying & CC is all I'm into.

From what I'm hearing I must use a Barograph in addition to the
expensive logger that I thought would do away with the 19th century
mechanical stuff of pressure chambers and mechanical camera pointing
that is not easy for a newcommer or non-decated sport flyier to do
correctly 100% of the time.


If you have an IGC full flight data recorder ( most of us call then
rloggers ) then it can be used, stand alone, for anything up to and
including world records without the need for a barograph or anything
else.

Provided of course that the recorder is igc certified to that level -
most are.