开云体育

Hi Dave,

You sure can get vibration from the daggerboard. There are some things you
can do to reduce this. The leading and trailing edge can be shaped to reduce
turbulence. I'll try and find an article about this.

BTW, the "racing" (plastic-composite) daggerboard reduces this phenomena
considerably. The down side to these boards is that they are expensive. IMHO
the composite board is worth it though.... it's longer and has a better
design all around.

The other thing you can do is to line the daggerboard trunk with
indoor/outdoor carpet. I use pieces of a rubber-backed door mat ($1.99 at
Target). I placed a 1 1/2" wide strip at the fore and aft end of the trunk
and a couple of 2" wide strips along either side. The carpet thickness was
chosen to hold the daggerboard snuggly and reduce vibration while still
allowing positioning without too much extra effort. It also helps protect
the board and trunk at the leading and trailing corners where grounding
damage occurs.

If you want a real workout, install a hiking strap and then do your
darnedest to "sail it flat". You'll get 6-pack abs and the rocket-ride of
your life in one package. See a book called, the Sunfish Bible" for details
on both the hiking strap installation and the technique of going really
really fast.


Wayne