Beaching Brewer12.8

More
10 years 3 months ago #1741 by George Myers
Replied by George Myers on topic Brewer12.8 Centerboard
Hello brewer centerboard enthusiasts! I just left my boat in Tonys yard. I intend to make a detailed "as-built" of the centerboard cavity. Then I will make a "as-built" of the new centerboard before being installed. I will use the pin as the base line. Then I will compare the two measurement studies . Then I will try to Quote "narrow the gaps" between the board both up and down by using rather hard neoprene pads betwixt the two. Hopefully this will prevent excessive movement and transfer the force of the board to the hull nicely. Suggestions welcome.

Please Log in or Create an account to join the conversation.

More
10 years 3 months ago #1743 by George Myers
Replied by George Myers on topic Brewer12.8 Centerboard
Dear SAILAFIN, Im having a new centerboard made as the previous owner removed it because it "made too much noise" . Does your board make any noise? Thanks, George

Please Log in or Create an account to join the conversation.

More
10 years 3 months ago #1744 by Augusto Villalon
Yes, under certain circumstances it make some noise. However, this can be remedied by installing some wedges glued to either the board itself or to the inside of the receiver. Where are you located? You may want to consult with Tony Pocklington of Charlotte Harbor Boat Storage (google them)
Good luck

Please Log in or Create an account to join the conversation.

More
10 years 3 months ago #1745 by Peter Garsoe
Replied by Peter Garsoe on topic Brewer12.8 Centerboard
we seem to have lots of interest in this topic!!...
several things... my cockpit pennant is attached under the hawse pipe and the board can be retrieved with it... i believe it serves as backup to the main raising pennant...just moving its attachment lower on the board makes it useful... also if it hums it was mentioned that it was a wire pennant... switch to line and that should go away... also if board is difficult to raise i use my main port winch with the dedicated winch as a turning block...
my question is the correct angle of deployment?...i have let it down all the way...90 degrees ...some have mentioned 45 as the correct angle and that seems strange... is the cockpit pennant used to hold it at that angle?...if it is deployed to 90 degrees is it possible the banging i have (only when down) is the board hitting forward of the pin on the trunk slot?... i do like the idea of wedges and had thought of that myself but have not tried it yet...i assume they are only on the aft top edge of the board... i am going to put mine in the slot and try to cover as much of the board width as possible consistent with being able to put the board into the slot ... thanks

Please Log in or Create an account to join the conversation.

More
10 years 3 months ago #1746 by Augusto Villalon
You have most of your statements correct. However, the pennant on the cockpit is both, a back up to be able to raise the board if the main line breaks but more than that, this line was designed to make the board travel stop at the correct angle that you mention. The angle where to "set" the board by adjusting the pennant is, as you mentioned, approximately 45 degrees. The way to adjust at the angle is to let the board down to the point where the "shoulder" built-in on the board is flush, or parallel to the bottom edge of the keel. Letting the board down all the way may change several parameters of proper balance, namely… center of resistance displacement, increase weather-helm, etc.
The wedges do work, as we know from people who have done this. My preferred version is to glue them (Plexus) and through bolt them on the low, or leading edge of the board. The increase resistance will be less than the benefits. These wedges can be made with "Starboard" material. Thanks

Please Log in or Create an account to join the conversation.

More
10 years 3 months ago #1747 by George Myers
Replied by George Myers on topic Brewer12.8 Centerboard
Any change in the designed shape of the board will result in more drag and less lift which means anything attached to it will diminish its purpose.

Please Log in or Create an account to join the conversation.

Time to create page: 0.173 seconds
Powered by Kunena Forum