In the UK, Middle Earth claims, it means "at least 2500 rpm".
PPRuNe Radar says it means best rate.
In the US, Scott claims, it means "that you do not want them to delay their climb or descent".
Three different opinions/working practices.
Now where's the consistency here, have you guys forgotten Ueberlingen already?
The report says that one of the technical causes of this tragedy was, that the way ICAO prescribed the use of TCAS was inconsistent and contradictory .
If something is open to interpretation, be it a procedure or phraseology, it is unsafe!
Last edited by Spuds McKenzie; 5th September 2004 at 08:35.