Perlan GLIDER ALTITUDE: 52004 ft

At 01:26 04 September 2017, Tom Kelley #711 wrote:
On Sunday, September 3, 2017 at 6:56:13 PM UTC-6, G Shib wrote:
Well, 52,172 ft doesn't sound enough to claim a new world record.
According to sporting code,

3.0.4 World record margins
A new record claim must exceed the current value by 1 kilometre for
distance, 1 km/h for speed, and 3% for altitude.

The current altitude record is 50,720 ft. Adding 3% to it, you need at
least 52,241.6 ft to claim a new altitude record.

On their Virtual Cockpit page, I did see altitude over 53,800 ft. I
hope
they can claim a new world record!

I also saw 53,900. downloaded the IGC file and See You shows max.
altitude
of 54,022 ft at 14:31.24 with a landing at 15:44.28. Am wondering what
software will be used to analyze the claim? Is it GPS or pressure
altitude?

Anyway, Congrats to all!

Best. Tom #711.

Above 15,000 metres, GPS altitude data from an FR approved for high
altitude use (HAFR) shall be used, and AFAIK Perlan have the only HAFRs
that have been made.