About a third of Tridents are fin-keelers drawing 3’8″(1.11m).
Most of the 1500lbs (680kg) of ballast in the cast-iron fin is concentrated low down in the bulb making the fin keeler the stiffest of the three keel options. All Trident ballast keels are through-bolted from inside the reinforced hull with stainless steel bolts. The heads of the bolts are glassed over. Click here to see the triple keel or drop keel versions.
The finkeel’s balanced spade rudder is deeper than the triple keel’s. (Click on photos to enlarge)