Peter,

f you put a hundred GNSx30 units into planes
parked outside in northern European weather for say five years, how
many will still be working after that?


Those five years are over. Have you read about massive complaints
anywhere, either here in Europe or in the US (where weather is probably
more extreme and diverse)? I sure haven't. Reliability seems to be a
total non-issue, from what I observe.

--
Thomas Borchert (EDDH)