Here we are debating whether or not the aviation community has come to grips with the wonders of TCAs technology and yet....
....we still have not agreed to an international form of units of measurement !!!!!!!!!!!!!!
Yes that's right we still have countries measuring height in meters, pressure in inches or Hpa, speed in Km/h or knots and the list goes on.
When giving our QNH to a particular charter group (US owned/operated) operating here for a major Middle Eastern airline recently who are used to using inches, QNH 997 was read back 3, yes 3 times, as 2997. Now please remember that the fancy dan TCAS is an altimeter and pressure based setting etc. therefore the whole thing is a complete crock if you have 400+ feet of difference in settings between FIR boundary's or poorly set altimeters.
Can we pleeeeeeese agree on one form of measurement in the aviation community, or at least run with the majority which would see the end of INCHES, METERS (I think the Cathay gang now about that little bun fight between their FIR's!), and KM/H !!!!!! It would have saved the passengers and crews of the worlds worst mid air collision in India which was a direct result of the lack of standardization in the industry!
