I planned a session at 18:00 GMT.
I will try to do it at 2:20/500 - time will be 1:38:27.2.

Jun 14 - Preparing for the Summer_Solstice_2010.
I planned an hour at 18:00 GMT.
I will try to do it at 2:15/500 - 13331 meters.

But being a software specialist with almost 30 years experience -

