CASA’s CAAP 155-1, Aerobatics used to be a good place to start reading about aerobatics and does include some of the information that you must know but it has a number of deficiencies:
- it does not adequately explain the structural limitations associated with Va, Manoeuvring Speed
- it has not been updated with the new Part 61 licensing regulations of September 2014
- it does not have the new, additional underpinning knowledge requirements of the Part 61 MOS
Of course, it has a misleading statement on the USA FAA’s definition of aerobatics which may be relevant in the origin of CASA’s new definition of aerobatics. The FAA definition is the same as ICAO’s. CASA incorrectly picked up on the separate FAA rule relating to the use of parachutes.
Note that when CASA developed its new website in about 2000 it omitted CAAP 155-1. We have been waiting since September 2014 for the replacement Advisory Circular.