detox
10-12-2011, 08:53 PM
I found this comment in another forum and was wondering what everybody else thinks. Does this TURNFIN trick actually work and will it help our hydros turn better?
Mike,
In the hydro world, best way to get a handle on hull attitude with turn fin placement changes is PICK BOAT UP by the turn fin.
Now while cornering hull is pivoting / hanging by the fin.
So a fin too far forward has hulls tail heavier that the front and hull will YAW hard having transom swinging around faster than the bow.
Fin too far back places bow heavier than tail and hull will seam to push like a race car does with a straight axle not wanting to set up and get around the corner.
When placement is correct tail should follow the bow as if hull is swinging on a string while balanced right in the middle.
** Tuck angle having fins lower edge tilted towards hull places the water pressure of the sliding fin to climb the angle and this pressure tends to pull the hull downward at the same time.
Mike,
In the hydro world, best way to get a handle on hull attitude with turn fin placement changes is PICK BOAT UP by the turn fin.
Now while cornering hull is pivoting / hanging by the fin.
So a fin too far forward has hulls tail heavier that the front and hull will YAW hard having transom swinging around faster than the bow.
Fin too far back places bow heavier than tail and hull will seam to push like a race car does with a straight axle not wanting to set up and get around the corner.
When placement is correct tail should follow the bow as if hull is swinging on a string while balanced right in the middle.
** Tuck angle having fins lower edge tilted towards hull places the water pressure of the sliding fin to climb the angle and this pressure tends to pull the hull downward at the same time.