http://www.marinesurveyorschool.org/pages/rudders.htm Control Types: direct linkage: rack and pinion and worm gear, chain and cable using a quadrant, or radial-drive, enclosed cable, and hydraulic. Should go over 35 degrees, and no more. Rudder area = LWL x draft x 0.05 Seeker: 70*5.5*.05=19.25 Actual is 22.
