Soxinbox,

I wonder whether its constant speed or constant pitch.


Speed. But you as a pilot don't get to select it. There's just one
single lever for "noise control": Forward means more noise, pull back
and it gets quieter. That lever doesn't even have any mechanical
connection to the engine, only an electrical link to the engine control
units.

Oh, and the reaction to this information says a lot about how much a
pilot really wants innovation in aviation.

--
Thomas Borchert (EDDH)