Prop walk is a function of 'tip clearance' to the hull and other hull
projections (aperture, etc.) , blade tip shape, , etc. etc. etc.

Just learn to 'back and fill' to steer going in reverse when there is
NO flow over the rudder ... and be prepared to use your rub-rails.
Especially if this is a full keeled boat with an aperture, you will
need LOTS of practice in 'backing and filling' to get it right; but,
once you 'learn', you will not want less prop-walk.

If you want to see exactly how to use prop-walk, go down to the
commercial docks and watch the prop-walk wizards / watermen fishermen
when they are about to land with a single screw boat -- always in a
hurry, LOTS of 'rpm burst', and precise maneuvering ... and all without
touching the wheel !!!!!.



In article , Capt. JG
wrote:

Back to more questions somewhat related to the Perkins 4-108. This sailboat
is a pig to back up. It really wants to prop walk to starboard. According to
the owner, it's got a fixed, 3-blade prop. I believe the boat also has a
folding prop aboard in a locker. Would that help? Would tuning help? What do
you think?