Bomber, I guess you are sort of right but I did say "gps as the sole aid" - Oz AIP Gen section 1.5 para 8.5.5.4, item 4 in the requirements list for NPA says
"If a TSO-C129 or a C129a receiver is used, an alternative instrument approach utilising ground based navigation aids must be available"
In other words, whilst it has to be available, it doesn't say it has to be monitored. Perhaps it says that somewhere else, but then again maybe not! I would have thought it was good airmanship to monitor the ground-based navaids anyway.
And of course item 3 says that you cannot use the GPS approach to satisfy the requirements for an alternate unless you have 145/6
HC
Last edited by HeliComparator; 15th June 2007 at 17:24.