Vertical is 0°. Speedfins between15°-30° (rake) The angle between vertical and
bottum of the board is 90°. The half is 45°,thats the best rake for fins for shallow
water, or weedfins. They have no problem to come over things who swim on the water,
or grow in the water. A Weedfin rake 45° is 32cm vertical deep,but 45cm long
(diagonal.) When you need for 130l and 8mē a fin with 40cm, is the 32cm Weedfin
not so deep. Good for shallow water . Weedfins have a easy handling downwind.
Please look: www.designlessacher.com