I wonder what effect it has on the crews ears in the long term.
Probably the same as the Shacklebomber. "Eh? Half past two."
When I flew in it, they briefed me to try not to stare at the props, put you in a trance. Very comfortable beast and the in-flight rations were a gazillion per cent better than the RAF's White Horror Box, with a lot of the fresh content grown/raised on the base's farm.
Bit of a Greenpeace quandary then.