This is my second A-class with spi, and this time I wanted it to be optimal for the A-class. I got a snail from Marstrom designed for the smaller A-class spi of around 18 m2 together with a 40 mm spi pole and nice carbon struts.

I've been out sailing a couple of times and max speed so far is 20.6 knots. The curved centerboards makes a big differance in higher speeds, it lifts the bow nicely and you can get the boat to take off on the centerboards if you stand far back.

Check the link below for pictures.

http://www.webbo.dyndns.org/a-cat_sailing/spi_mk2/


hakan