Nick ~ just an idea.
It's said that the S-92 has a quiet rotor. In addition, everyone knows that the rotor is controlled by the swashplate.
On the S-92 why not rename the 'swashplate' to 'swishplate'?
swash ~ to make violent noisy movements
~ Merriam-Webster's Online Dictionary
swish ~ to (cause to) move quickly through the air making a soft sound
~ Cambridge International Dictionary of English
Dave J.
