Originally Posted by
PhilJ
I think what you can see is the droop stop ring and the lugs are the top of the scissor link. Compare it to the cad model on page 6 posted by RVDT.
I'm not so sure. The lugs on the droop stop ring are 180 degrees apart and much closer to the centre line of the main shaft.
In the pic in post 140 you can see 2 lugs which wouldn't be possible from that angle if it were the droop stop ring.
You can also see the outer race of bolts which look like part of the rotating swashplate.