500e
I don't think
SHAK'N and the others are disregarding anything, but hark to my earlier statement about so many parameters and blade construction / overhaul. In the Royal Navy we always placed greater emphasis on matching blades by 1st moment, rather than by weight. sure we matched them by weight to a degree, but the 1st moment matching allowed us to achieve better results in the air. Unfortunately, as I found when I left the Navy some years ago, when you speak of such terms to a maintenance organisation, you are usually greeted with a parisian shrug.
Incidentally SHAK'N, as you know, black magic boxes were originally designed to operate on a basis of a logical progression of adjustments, which themselves relied to a fair degree on the type of set up to which you refer.. sadly through the passage of time and the reliance on such kits like the Rotortuner or the Chaddy 8500's, this base philosophy is being lost, and largely, instead of smoothing a rotor, operatives are simply altering the way vibration is percieved in order to achieve a figure on a display. As Noel himself used to say "We've become bloody button pushers instead of engineers!".
Incidentally 500e, your second post is now moving into cross coupling effects.. i.e. the effect of blade pitch on mass balance for example, which serves to demonstrate that 1st moment, and pitching moment position or adjustment can
almost make blade weight matching irrelevant.
This could go on all day...
