There have been some thoroughly hilarious discussions on this topic in the past year or so:

https://groups.google.com/forum/m/?fromgroups#!search/rules$20committee$20gyro/rec.aviation.soaring/1gM3nGZamb4

https://groups.google.com/forum/m/?fromgroups#!search/rules$20committee$20gyro/rec.aviation.soaring/47SxSc-if7M (LX has an AH that actually works but it was not banned in any way, nor the software producer asked to create a version incapable of accessing the AH module data! Unreal! Yes, I know!!!

https://groups.google.com/forum/m/?fromgroups#!search/rules$20committee$20gyro/rec.aviation.soaring/7RXaK9m8TTU

https://groups.google.com/forum/m/?fromgroups#!search/rules$20committee$20gyro/rec.aviation.soaring/R5IKbGMIX0w

Serious question for the RC: Is this illegal? http://www.bellross.com/us/collections/aviation/br_01/

Since an Iphone or Android phone with XC Soar are considered illegal (even though it is useless as a flying instrument), what about my watch? Is this also illegal? I just want to be sure before I close the canopy in competition this summer ;-)!

Sean
F2