ATT: Scott Odell
Scott:
How did you run the lead for the servo-rudder control lines that connect the windvane quadrant to the tiller. Do you have a photo?
Rod
BCC IDUNA
Hi Rod,
Good Grief, you’re asking me?! Yesterday and today I’ve been back and
forth to ITCHEN, now in Ft. Washington Marina, ten minutes from home,
getting her ready for our trek to Nova Scotia starting in a week or
two if the weather cooperates. And, the big job of the moment is,
finally, installing the Cape Horn vane, with drill in one hand, and
photos of your IDUNA installation in the other! I thought you had it
all figured-out and planned to call you if I ran into trouble . . .
Best,
Scott
On 7/14/07, BCC Forums bccforums@samlmorse.com wrote:
Scott:
I am refining the quadrant to tiller connection. Telephone me at four-four-three 852-3686.
The current installation on IDUNA, has the control line lead angle from the turning blocks on the deck to the tiller at about 30 degrees. I want to gain more sensitivity by making the lead to the tiller closer to 90 degrees.
Tomorrow, I will messure the current angle, apply a little trigometry and determine if I need to change the control line lead angle to tiller.
Please remember, I am always seeking nirvana.
Rod
Rod, I’ll try to call sometime tomorrow. Gelina’s Cape Horn website,
with those very sharp and detailed photos of your installation seemed
to cover most of my questions, but of course every BCC is set up
somewhat differently. I just figured that the overall installation
looked pretty straightforward and planned to leave the bullet block
and control line setup for last, after everything else was lined up
and bolted in place.
Scott
On 7/14/07, BCC Forums bccforums@samlmorse.com wrote:
Scott:
I led the control lines for the servo-rudder to tiller connection between the taffrail and aft deck. Blocks were attached to the knees that support the taffrail. The angle formed between these blocks and the tiller is about 30 degrees. Therefore, the lateral force that turns the tiller is only about 80% of the actual force developed by the servo-rudder - less friction. Attached are two photos from BCC Devon, showing the servo-rudder to tiller connection led along the bumpkin. Based on the photos, the angle formed between the turning block on the bumpkin and the tiller is very close to 90 degrees, i.e. other than friction, the full force developed by the servo-rudder is used to turn the tiller.
The servo-rudder to tiller connection on IDUNA works but I am wondering if it will work better when the control line lead angle is closer to 90 degrees.
Cheers,
Rod
