So today on haul out to pressure wash, replace zincs and put a pair of tuned props on I notice these raised projections on the aft section near the rudders on the hull. Unbeliveable engineering by ChisCraft designers. At speed this helps the hull lft and reduce wetted surface at speed without the trim tabs. Really remarkable engineering for the day. Blow up the photo to see!!
L
Photos of Trim Tabs on 1972 41 Commander.
Closed all the way.