On Nov 26, 11:05*am, Bob Kuykendall wrote:
When I was building a brake system for the center stick controls of my
HP-18, I decided I wanted the stick to have as little inertia, and as
little mass aft of the ptich pivot, as practical. Hence my decision to
use a mountain bike brake lever on the stick driving a fixed master
cylinder through a low-friction sheathed cable. That's why this
sailplane developer developed such a system.

Did you consider using a mountain bike hydraulic brake lever? Perhaps
they were not available then. Is the mass of the lever even
significant compared to the mass of the pilot's hand and arm that are
also usually, and certainly during a PIO, attached to the stick?

Andy