yak2you2
2013-03-03 06:30:50
More than once now, I've been told that guys with big boats have picked up a knot ot two by tying a line to the base of a main pole, running it under the hull, and tying it tightly to the pole on the other side. Word is, it has to be banjo tight for the trick to work. Apparently, it breaks up the water over hull drag, and allows the boat to pick up speed without an increase of rpm. I don't own a big boat, so I can speak to it, but it sure sounds interesting.
Once and Future
2013-03-04 23:59:08
I dunno, porpoises seem pretty speedy to me, and they haven't evolved any crosswise ridges on their body to help them along. Ever seen a boat with this on?
yak2you2
2013-03-05 06:03:59
2 of them in the harbor now. Guys swear it works.
entropy1
2013-03-06 00:18:44
Old guys in Sandpoint told me they would do something similar with the old codfish dorys when they wanted them to get up on step and plane under outboard power. Sort of a larger version of low drag buoys.
gumpucky
2013-03-06 02:29:35
Any idea how big a line ? I'll give it a try.
yak2you2
2013-03-06 13:35:18
Looks pretty small, half inch or less. Here's one thing I do know, breaking up friction does help. When your up on step in a flat bottom skiff, and the surface is glass, there's a certain amount of friction. Then, when you get just a tiny amount of texture it breaks up the friction, and instantly the skiff will pick up 5 knots.
Let us know how it works gumpucky.
gumpucky
2013-03-06 14:55:12
Makes sense. Ever drop a ball fender in the water? They're smooth and slick yet they dig in and create drag. I guess my main concern would be wearing the bottom paint but worth a try.