I did the ATPL air law paper down under a few years ago which included questions regarding Co-pilot endorsements and Co-pilot IR's, it would have been amusing had it not been confusing...
I believe the Co-pilot IR is hardly used these days but the Co-pilot type endorsement is.
All about to change soon though as all the Regs are being updated, and so Australian aviation will be dragged kicking and screaming into the 21st century...
But when is the taxation system going to come out of the 1960's I wonder...
