Select to expand quote
mathew said..John340 said..
One of the advantages of storing boards on their sides is that it doesn't effect the bottom shape of the board. I store by boards horizontally on racks in my van. In prep for my yearly trip to Lake George, I've just checked the rocker line of my boards with a straight edge. I found about 1 to 2mm -ve rocker on my 97 about 200mm in front of the fin box. This corresponds with where the board is supported on the rear rack in the van. -ve rocket is very bad for speed. I've filled the hollow with automotive spray putty and sanded straight with wet and dry.
Are you sure that isn't a side effect of the 70-100kg person pounding on the board while riding through chop... Or the fact that the bottom of a board is under-compression due to the stresses induced in it, due to the curvature of the top of the board ?
I have had the same issue on an F2 speed board which always had the fin removed and sat on a flat surface (not on any type of rack).
-ve rocker isn't good, but #CorrelationIsNotCausation
Matt,
One interesting observation.
My slalom boards are 2 1/2 years old. They have done 55 (115) and 34 (97) sessions respectively. I'm also a bit of a flat water princess.
The rack in my van for my 115 slalom board is a flat board along the length of the board with carpet on top. The 115 has NO -ve rocker
The rack in my van for the 97 slalom board is 2 off 40mm wide pieces of timber at rights angles to the board with carpet on top. This board had 1.5mm -ve rocker at the location of the tail support.
I agree that there may be many factors at play and the link between -ve camber and being stored on supports at right angles to the board may well be a coincidence.
It would be interesting to hear other sailor's experience.