Glenn,
While in the yard recently I was parked next to a Hunter Legend 35 that was in the process of having its keel shaped from a pattern provided by CompUKeel. After much discussion with us fellow shipyard experts and a few phone calls to CompUKeel he had decided on a 12% chord pattern.
CompUKeel had recommended an 8% chord as that would take the least shaping material.
A 12% chord to them seem to be an overkil as their 8% chord was close to what Hunter was using.
In fitting the 12% chord shape to the old Hunter keel it showed where there were many voids and lumps in the Hunter casting and the 8% chord shape would have a hard time in getting a smooth shape
Also the 12% chord was selected because the owner had read where NSAA had determined that this was the most efficient shape moving through water.
Once back in the water the owner claimed the HL35 had picked up a one knot increase in water speed on a point to the first mark.
Have you had any experience with keel shaping and the 12% chord selected for the HL35: and why was the the original HL35 keel cast in the 1988 time frame so "rough" ??
Appreciate your interest in the older Hunters.
BR
While in the yard recently I was parked next to a Hunter Legend 35 that was in the process of having its keel shaped from a pattern provided by CompUKeel. After much discussion with us fellow shipyard experts and a few phone calls to CompUKeel he had decided on a 12% chord pattern.
CompUKeel had recommended an 8% chord as that would take the least shaping material.
A 12% chord to them seem to be an overkil as their 8% chord was close to what Hunter was using.
In fitting the 12% chord shape to the old Hunter keel it showed where there were many voids and lumps in the Hunter casting and the 8% chord shape would have a hard time in getting a smooth shape
Also the 12% chord was selected because the owner had read where NSAA had determined that this was the most efficient shape moving through water.
Once back in the water the owner claimed the HL35 had picked up a one knot increase in water speed on a point to the first mark.
Have you had any experience with keel shaping and the 12% chord selected for the HL35: and why was the the original HL35 keel cast in the 1988 time frame so "rough" ??
Appreciate your interest in the older Hunters.
BR