H1 yep you know all about it if you make the mistake of resting your knee against it during low speed flight when it rotates about twice as fast as at high speeds
One day I might learn....
Air NZ and the airports they serve domestically are not set up for high speed turn arounds. There is only one gate at AA and a handful of others around the network where you could board/disembark from both ends, and even then you are risking safety by releasing a bunch of lemmings onto a busy ramp environment never designed with that purpose in mind. Also the 320 crews at the moment are not used to achieving 30 mins on a turnaround but that would quickly change were it all they were doing all day.
So anyway, I would be VERY surprised if Air NZ replaced 73s with anything from the 320 family on the domestic runs for anything other than a very short term stop gap.