elevator servo torque

[Wayne at Bolly Props]

I'm trying to figure out the amount of torque required for my elevator servo
(single, in a pull-pull system).  I'm doing an electric Impact and trying to
save as much weight as I can.  I'm considering either the DS8411SA or the
DS9411SA.  Not sure if the 82 oz/in of the 9411 will be enough?  Savings of
.7oz (every little bit helps) times 2 aileron and one elevator servo makes
it worth while.

There used to be a site on the net that showed a way to calculate the
required torque, however I can't find it.

Any first hand experience or good theories welcome!

Wayne P.

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