Bell Medium Helicopter Mast

[@andrewashmore8000]

Interesting, was wondering about the alignment, the master spline making it quite easy. Good engineering.

[@bolu7971]

What device does the rotor main shaft rely on to prevent it from separating from the gearbox

[@stealhty1]

Tell us about the main bearing where the Mast is mounted

[@razz33069]

keep up the good work. very interesting.