Mechanical Vario or not?
jerome wrote:
In most European countries (including France) a pneumatic vario is
mandatory - and I think its a good idea when I count the times the
saiplane battery went dead in long flights!
As far as I know, only the mechanical altitude meter and the mechanical
speed indicator are mandatory. The vario is not a safety-critical
instrument and therefore not required by law... AFAIK...
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