specs
The centerboard for the E25 is almost identical to the one used in the E23. It is about 5' long, 11" wide, and is 2 3/8" across at its thickest point. I have tracings for both boards, and will be glad to send you one if you pay postage. I have built several of these boards from scratch - in fact, I'm planning to replace the one on my boat this winter, so I had better get started on that project (along with others.) You can find my email address by going to EricsonYachts.org; Owners & Projects; E23-2 - my boat is named TigerEye. It is important to get the right profile across the board so that it develops good lift, as the E25 has no shoal keel.