hehe, pprune at its best , business as usual
the pdf you linked is more a summary , but nevertheless i quote some sentences from there :
“Beta” Operation
“Beta” is the ground mode operation between 50% and approximately 80% of rated power.
During “beta”, … the propeller governor is in an underspeed condition and does not control rpm.
Alpha Mode
Alpha mode is the flight mode.
In alpha mode the propeller rpm is high enough for the propeller governor to be on speed. (80-100%).
During alpha mode,
… the power lever controls engine power.
… propeller governor controls blade pitch.
so gents, lets relax , taste what is written , maybe read some threads of yesterday and think about the confirmation
that also the porter pilot does not go over the gate in the dive .
maybe you can so by yourself finally answer the question if a pt6a driven porter is in beta during the dive or not.
or keep on pushing
cheers !