We've disconnect the wing mounted static on two aircraft and both display much
better airspeed calibration than with the wing mounted static. There was no
change
in altitude calibration detected.
One aircraft is a Classic/912 (ZK-UBD) and the other is an XS/912S (ZK-RJL) and
normally operate at altitudes of less than 10000ft amsl.
The Classic/912 has standard Europa NACA air vents and an air outlet. The
XS/912S
has Europa NACA air vents plus a windcreen mount photo panel and no air outlet.
The opening and closing of the vents and panel shows no variance in airspeed
or altitude indication.
Regards
Tony
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