Bureaucrat, staff, administrator
4,335
edits
Changes
m
→Paravanes & Flopper Stoppers
Obviously the pumping systems should have excellent redundancy. You wouldn’t want water ballast on the wrong side of the boat at the wrong time.
== Paravanes & Flopper Stoppers ==
A discussion of roll damping would be incomplete without mentioning [https://en.wikipedia.org/wiki/Paravane_%28weapon%29 paravanes ] and flopper stoppers. Paravanes are long poles extended horizontally from the sides of a trawler, with winged paravanes that reduce the boat’s rolling inertia when underway.
Flopper stoppers are similar, but with flotation devices on the ends for use at rest. For either, the supporting mast structure raises the centre of gravity, which decreases ultimate stability.<ref>The Use of Roll Damping Paravane Systems (Paravane Stabilizers), Transport Canada, http://www.tc.gc.ca/marinesafety/bulletins/2000/15_e.htm/</ref>