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Sabre 34-1 1983 Centerboard Issues

 

Lst year replaced my centerboard cable with Dyneema.? SO far , so good? ? ?BUT ater thoroughly clearing all barnacles, and crud, it still seems to get stuck if I crank all the way up.? Had it in the travel lift today (pre launch) and it works pretty well until I went fully retracted and then neither gravity nor unwinding by winch would not drop it.? We went under and pulled it down by hand several inched and tried to exercise it several times.? ?Any time we went higher than about? 6inches down,? it got stuck up.? ?Finally decided to launch and marked the cable by the winch, so at to remind me to not come fully retracted.??
?
Also,? lot? of effort required to retract? The winch spool seems prety smal lwith little mechanical advanatage.? I actually? use a socket and rachet wrench for some leverage and still quite difficult.? ANy ides for winch replacement, or other way to take the sweat out of the job?
?
Thanks all? ?Marty Cawley? "Blue"? Sabre 34- #188? ?West Islip,NY
 

The centerboard is a pretty tight fit in?any?event.? I leave mine 1/3 of the way down,?or more.? It is almost always better to replace parts with the same kind of parts as originally designed.? Trust engineers.? The centerboard pendant was designed to be a wire rope pendant.? I don't understand why you would use dyneema for that particular application.

**
James H. Wilson, Jr.
Attorney & Counsellor at Law
By appt. only:
4860 Cox Road, Suite 200
Glen Allen, VA 23060
804-740-6464
jameswilson29@...



**


On Fri, May 2, 2025 at 11:08?PM Marty Cawley via <martinjcawley=[email protected]> wrote:
Lst year replaced my centerboard cable with Dyneema.? SO far , so good? ? ?BUT ater thoroughly clearing all barnacles, and crud, it still seems to get stuck if I crank all the way up.? Had it in the travel lift today (pre launch) and it works pretty well until I went fully retracted and then neither gravity nor unwinding by winch would not drop it.? We went under and pulled it down by hand several inched and tried to exercise it several times.? ?Any time we went higher than about? 6inches down,? it got stuck up.? ?Finally decided to launch and marked the cable by the winch, so at to remind me to not come fully retracted.??
?
Also,? lot? of effort required to retract? The winch spool seems prety smal lwith little mechanical advanatage.? I actually? use a socket and rachet wrench for some leverage and still quite difficult.? ANy ides for winch replacement, or other way to take the sweat out of the job?
?
Thanks all? ?Marty Cawley? "Blue"? Sabre 34- #188? ?West Islip,NY
 

My nickels worth.
Aside from either your centerboard or case being somehow water swollen or debris lodged in the top of the case or too many built up layers of bottom paint. ? the bronze worm gear winch is highly dependent on being greased. ? Once greased, and in the water the weight of the centerboard is well balanced against the ¡®hard¡¯ angle physics of the gear trying to turn the worm. ?On the hard the centerboard can seem like it fell as it unspools the cable from the drum. The relative buoyancy of the board in water is needed to balance the system. ( versus lifting where the worm turn the gear on the winch drum. Much more effort to lift the board on the hard. A one way mechanism mostly)
needless to say the sheaves need to be free turning. ?Perhaps a reason to use Dyneema as it is so slippery it may not really need the sheaves.?
--
Eugene & Maureen
¡®°Õ¾±³¾±ð´Ç³Ü³Ù¡¯
34-2 1987 #301
Fort Rachel Marina
Mystic, CT
 

¿ªÔÆÌåÓý

Dynema is stronger. Lasts longer unless there is abrasion.?




Please consider the environment before printing this email. Thank you.


On May 3, 2025, at 5:33?AM, Eugene & Maureen via groups.io <atwooder@...> wrote:

?
My nickels worth.
Aside from either your centerboard or case being somehow water swollen or debris lodged in the top of the case or too many built up layers of bottom paint. ? the bronze worm gear winch is highly dependent on being greased. ? Once greased, and in the water the weight of the centerboard is well balanced against the ¡®hard¡¯ angle physics of the gear trying to turn the worm. ?On the hard the centerboard can seem like it fell as it unspools the cable from the drum. The relative buoyancy of the board in water is needed to balance the system. ( versus lifting where the worm turn the gear on the winch drum. Much more effort to lift the board on the hard. A one way mechanism mostly)
needless to say the sheaves need to be free turning. ?Perhaps a reason to use Dyneema as it is so slippery it may not really need the sheaves.?
--
Eugene & Maureen
¡®°Õ¾±³¾±ð´Ç³Ü³Ù¡¯
34-2 1987 #301
Fort Rachel Marina
Mystic, CT
 

I just replaced my board pendant with Dyneema. ?My stainless pendant broke at the board attachment point while on the hard doing a bottom job. Gave the replacement job to a rigger who was able to run a messenger line and pull the original stainless cable out but in the process of trying to pull the new stainless cable through, broke the messenger line. We had to take out all 3 watertight sheave boxes to try to pass the new stainless cable. ?Finally gave up on stainless and went to Dyneema, which was easy to install and ran smoothly. Also after inspecting the weld joints on the primary sheave box and finding pin hole corrosion, ended up having a new one fabricated and installed.?
?
As for the centerboard winch, I too was experiencing heavy loads while trying to turn it. Finally applied a liberal amount of lubrication and there was an immense improvement. Next time out I will disassemble it and grease it properly. It now cranks even on the hard without a lot of effort.
?
The whole project was an expensive ordeal. I normally don't move the board that much and hopefully the Dyneema will have a long life. I am more concerned now about the other sheave boxes and corrosion along the weld seams. Something I will watch carefully from now on.
?
David Andrews, New Bern, NC
Sabre 38 MKII -?1995 Hull 214
 

Thanks all for the feedback
?
I went with the Dyneema for strength primarily and ease of installation
?
I will dutifully lube the winch? and perhaps after the season, really do a better inspection of the upper? area of? the? CB case? ?
?
Marty ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "Blue"? Sabre 34- #188? ?West Islip,NY ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
 

What is the recommended lubricant and procedure for lubricating the winch?


On Sat, May 3, 2025, 11:31?PM Marty Cawley via <martinjcawley=[email protected]> wrote:
Thanks all for the feedback
?
I went with the Dyneema for strength primarily and ease of installation
?
I will dutifully lube the winch? and perhaps after the season, really do a better inspection of the upper? area of? the? CB case? ?
?
Marty ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "Blue"? Sabre 34- #188? ?West Islip,NY ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
 

Hi All,

Now hailing from Marsh Harbour in the Bahamas! Arrived yesterday afternoon after a somewhat arduous passage, but mor of that in other posts.

I had issues with my CB Pennant (well that¡¯s what they call them over the other side of the pond) after I first bought Chardonnay because it was really hard to operate with the tiny winch handle provided. My rigger
suggested Dyneema and now it is really easy to crank with that same winch handle. My only concern with it is that Dyneema can chafe and soon after its installation I found that there was a sharp edge where a pipe cutter had cut off the tubing leading the the CB. This was disguised because in order to make the lead angle correct onto the drum of the winch they had inserted a piece of rubber hose in the tubing and it was at this point that there was some slight chafe. I filed the inside edges of the tubing so that is smooth and all has beengood so
far.?
What I did find on the passage down from NC was that ( particularly in a following sea) there was a thudding sound from the centre board, which we attributed to it knocking against the centreboard casing. Has anyone else found this to be the case and is there a fix, or is it to be lived with?
--
Pete Waterson
¡°°ä³ó²¹°ù»å´Ç²Ô²Ô²¹²â¡±
S38-2
Oriental, NC
 

Without constant lateral pressure on the centerboard, it does thump when the boat lurches. ?
the advantage of the center board is less side slip from broad reach to beat.?
down wind it is mostly extra wetted surface drag.?
crank it up on down wind legs?
couldn¡¯t say if the thumping is a wear ?mechanism. Seems like it though.?

best wishes!
--
Eugene & Maureen
¡®°Õ¾±³¾±ð´Ç³Ü³Ù¡¯
34-2 1987 #301
Fort Rachel Marina
Mystic, CT
 

Technically, the centerboard generates lift (not lessens sideslip) upwind.? On a reach you may find that it affects yawing as it is raised from the full down position, where?it seems to act as a kind of pivot point.? When raised to just below the centerboard trunk, the center of lateral resistance?is moved up and aft, which seems to lessen the broaching force when sailing down waves.

**
James H. Wilson, Jr.
Attorney & Counsellor at Law
By appt. only:
4860 Cox Road, Suite 200
Glen Allen, VA 23060
804-740-6464
jameswilson29@...



**


On Tue, May 6, 2025 at 7:00?AM Eugene & Maureen via <atwooder=[email protected]> wrote:
Without constant lateral pressure on the centerboard, it does thump when the boat lurches. ?
the advantage of the center board is less side slip from broad reach to beat.?
down wind it is mostly extra wetted surface drag.?
crank it up on down wind legs?
couldn¡¯t say if the thumping is a wear ?mechanism. Seems like it though.?

best wishes!
--
Eugene & Maureen
¡®°Õ¾±³¾±ð´Ç³Ü³Ù¡¯
34-2 1987 #301
Fort Rachel Marina
Mystic, CT
 

Eugene/Maureen: thanks for the feedback. Nice to know the thumping is not unique to my boat and something to be overly concerned about. I will talk to the rigger about it when I get back and see what is recommended.
?
Best regards,
--
Pete Waterson
¡°°ä³ó²¹°ù»å´Ç²Ô²Ô²¹²â¡±
S38-2
Oriental, NC
 

Hi James,
I will rephrase. The net effect is to lesson sideslip using the lifting force generated by the symmetric profile centerboard¡¯s angle of attack.?
I will try using the mostly retracted centerboard for near following seas. I would guess thumping is much reduced as the lever arm is reduced and the contact to the centerboard case is well sternward.?
?
Hi Pete,
You are welcome.?
I find my winch makes 34 turns, so happy cranking!
--
Eugene & Maureen
¡®°Õ¾±³¾±ð´Ç³Ü³Ù¡¯
34-2 1987 #301
Fort Rachel Marina
Mystic, CT

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