Hi All!
welcome Barrick!
you have come to the right place!

your blade balancing question reminds me to ask a question

some where loooong time ago i read something about balancing the blades at 1/2 span?
this would be to get tip and root same weight--do i remember correct?

if so is the span measured from shaft to tip and then balance at 1/2 way point?
or is it measured from some where else?

looks like the blade has to go onto back burner for awhile---thought i was looking at a clutch plate failure in racecar.
its something worse---pinion in hewland turns but not the ring!can kinda see the teeth through the fill hole and they look ok--they dont mesh--at all. would suspect a bearing failure but dont feel or hear it.
im thinking the ring gear flange must have broken off the rest of the diff carrier!
or ring gear bolts ALL broken?dosnt make sense and have to tear it down and see--expensive and work i didnt want to do now.

i will check in every day and work on copter if i can

David