On Monday, March 2, 2020 at 10:14:00 AM UTC+13, Richard Pfiffner wrote:
On Saturday, February 29, 2020 at 8:32:18 PM UTC-8, Tim Taylor wrote:
Shaun,

The reason for the restrictions is having an artificial horizon would provide the potential for pilots to fly into clouds. This is both unsafe and unfair in contests.

Every state of the art Vario, Flight computer & Cell phone has this option. Will he CD be checking all contestants instruments and phone? It may be time to get rid of this rule.

Richard,

LX9000's and Air Avionics devices both log the deactivation of AH in the IGC file. Cell phone AHRS's are not practical for flight, try it for yourself - it doesn't really work, they rapidly get confused.