How does bank angle limiting work in the bus at high altitude? On the 73, one has to manually select the bank limit in HDG SEL - I assume the bus is more sophisticated and does it automatically, or can one bank the aircraft into buffet at high altitude like you can in brand B?
There is a 67 degree limit as long as you are in normal flight envelope. However unlike in Boeings, this is a "hard limit" (maximum achievable) which the pilot cannot override under normal flight.
The protection tightens to 45 degrees if High Speed protection mode is activated. Plus there is a separate AOA protection.