Secondary instruments

[TSR2]

Its great having you here Charlie... its like Tonks and mini Tonks. And this week we have you both!

Thanks for the info.

[Motormouse]

Dont know what the RAF goes by - but we have to do a static check if there is a split of 150 feet or more

Leif

Ours are checked an logged on the ground (on the VC10 that's both pilots precision digital altimeters (with either QFE or QNH set depending on the location), the analogue standby (QNH)) by the Nav. As you would expect they are then checked (but not logged) before again take off (primarily to ensure both primarys are set correctly), and then on each altimeter setting change after that and before landing. The only other time they are logged after that is on entry into RVSM airspace, where they are checked and compared along with the standby to ensure RVSM compliance (+/-200ft).

ah,yes RVSM....
all RVSM approved aircraft and equipment (that includes pilot's and techies ) have to have a 2 year recurrent
check (just done mine ;-) )

ttfn

Pete