Moment of Inertia of grand action parts.

[Paul Chick]

Ron,

Ron Wrote-
This is the way I see it, for whatever that might be worth, with more than
a few decimal points lopped off. Once the basic geometry is established and
the friction is under control, the hammer weights are the priority.


Is it so that this basic geometry is relatively the same for any action
(grands) of the same size piano? Or possibly of all (grand) pianos?

Paul Chick.