how does a yachts hydraulic steering work?
Feb 25, 2009 in
Yacht Charters
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3 comments
captbryguy on February 25, 2009 at 10:33 pm
Like cptHunt I have Hynautic Steering.
I had the pump rebuilt last year. The pump is located in the bezel just under the wheel.
I was surprised how simple it is. The steer wheel's shaft or axle acts like a camshaft that lifts and depresses several pistons (spring actuated) . These pistons press the hydro oil to and from the ram on top of rudderport.
Pretty Kewl settup
john b on February 25, 2009 at 10:33 pm
Depends on the size of the Yacht. Smaller boats use a simple but very effective system consisting of hydraulic pump actuated by the helm wheel. The pump sends fluid under pressure through pressurized lines to a hyd. cylinder at the rudder or drive unit. When turning to port it "pushes" the rudder in one direction and visa versa when turning to starboard.
Larger vessels use a similar system except the hyd. pressure is augmented by an engine driven pump much like your automotive power steering.
captmhunt on February 25, 2009 at 10:33 pm
I had "Hynautic Steering" on a boat once because there were 2 steering stations and either could be used at any time. I didn't care much for it though because there was no way to know dead center for the rudder (well… there WAS a way… but I didn't have a Rudder Position indicator).