On Sunday, May 27, 2012 9:08:02 PM UTC-7, Steve Leonard wrote:
Want a bit more concern? Look at my flight from May 13.
http://www.onlinecontest.org/olc-2.0...l?dsId=2355098
Good baseline before takeoff, but it is 400+ meters high. Then, a bit
into the flight, there is a downward vertical correction (19:09:08).
Maybe again the 2D to 3D correction? Then, right after the downward
correction, is a majoor upward correction (19:11:16. There were no 18
knot thermals or even short climbs due to a zoom). Could be that the
inflight corrections were when I move the logger from the panel to the
canopy frame.

Interesting that I have not ever seen any major jumps like that with
the GPS altitude from my Cambridge logger.

Steve Leonard

Steve

FYI there are no position reports (B records) in that file that indicate a 2D fix.

Do you have a trace from the same flight from your Cambridge flight recorder?

Darryl