? for Nick Lappos - S76A Tail Rotor
I've recently transitioned into the S76A (took my check ride today!). During preflights I've noticed four "bumps" about 1/3 of the way from the blade root of the tail rotor. They appear to be connecting bolts under the skin of the tail rotor blade. I asked my check airman, but he didn't have an immediate answer.
Are these "bumps" for aerodynamic reasons or is it something else? Structural? BTW, I find the S76A a very good basic aircraft (coming from small and mediums Bells) and offered not surprises.
Thanks,
A New GOMER.