Ha! Great advert Aye Yes! No mention there of the relatively high noise levels in the cabin.
Apologies in advance, but for some reason I remember that narrow little compressor, single axial stage and 2 centrifugal stages, used to spin at 43,089 RPM. When the front bearing dropped, the even higher pitched squeal than normal sounded like interference on a UHF frequency. How on earth could anyone know that?
It was quite comfortable to fly though, and had so many redundant systems as to be confusingly failsafe.