Hello.
I’ve a 6’1" x 2 3/8" x 19" round pin thruster, and I took it out for the first time this week.
The fins were “humming”/“whistling” when I got up to speed, and it felt as if I was trying to drive my car with the emergency brake applied.
I thought the problem might be the fins themselves (which I bought through ebay for a modest price). The side fins were transparent material with the K 2.1 outline, and the center fin was an FCS black G3000.
So next day I changed the side fins to FCS Yu model, thinking the problem was the side fins. I left the same center fin (FCS G3000).
Waves were very nice.
Although the board didn’t “hum” as intensely as it had the day before, it still felt like the parking brake was on. Especially when the board was planing flat (flat over the water surface = not on a rail).
So I am thinking that I should start looking at the fin placement.
I checked the cant angles on all three fins. The center fin is slightly tilted to one side (maybe 1 degree). The side fins both have the same amount of cant (about 96degrees or 6 degrees off the vertical). And yes, the cant angle on the side fins is pointing away from the stringer and towards the rail.
Which brings me to my question: Having checked that the typical measurements for fin placement were present (3 1/2"~ 4" from tip of tail for rear fin, 10 1/2" ~11 1/4" from tip of tail to trailing edge of side fins, 1" ~ 1 1/8" from edge of rail to trailing edge of side fins), I’d like to know what is meant by “2 inches off the nose” when measuring toe with a straight line.
Is **“2 inches off the nose” **referring to 2 inches to the sides of the nose, respectively?
Or is it referring to 2 inches beyond the tip of the nose going forward from tail to nose?
Any thoughts will be appreciated.
Thanks!