After 2 years of restoration of the hull I am desperately trying to find some photos and diagrams of the rigging for an old 1972 Oday 23. Does anyone have any decent photos of the rigging of the mast/boom and in particular the attachments of the main sheet to the back stay. I have searched the Archives but cannot find any clear pictures of the rigging at the aft end of the boat. I have the riggers coming Friday to help and would appreciate any feedback before then. Many thanks Jonathan
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M
Mike
Not an ideal set up
Jonathan: I have a '79 Oday 23, but I don't have any picutures of the mainsheeting arrangement. You can check out the Oday 23 "Owner's Manual" which is on line here at this site under "Resources" and then "Oday manuals and documentation". I think there is something on that two page document that shows some drawings of the rigging set up. I will try and describe the way mine is set up, which I believe is factory-original. The backstay is essentially about a foot and a half short of the chainplate on the transom. This "gap" is filled by what I call the "tail": a foot and a half length of wire stay. One end has a standard non-adjustable swage fitting that attaches to the chainplate on the transom. The other end has a similar fitting that is attached to a flat triangular plate. This plate has a hole near each of its three points. The Tail is attached to one of these holes; the backstay (with the adjustable turnbuckle at the end) is attached to another of the holes. When you are attaching the tail and backstay to the triangle, remember that when assembled the third point on the triangle MUST POINT INBOARD. The mainsheet is attached to the end of the boom and the other end is anchored to this third hole of the triangle. This arrangement allows for end boom sheeting, and keeps the mainsheet out of the way. It does put stress on the backstay and it does mean that you can't have a traveler without some major boat surgery, but hey, you didn't buy the Oday 23 to race anyway. Besides, I have found I get a lot of the same sail control with my boom vang. Hope this helps.
Jonathan: I have a '79 Oday 23, but I don't have any picutures of the mainsheeting arrangement. You can check out the Oday 23 "Owner's Manual" which is on line here at this site under "Resources" and then "Oday manuals and documentation". I think there is something on that two page document that shows some drawings of the rigging set up. I will try and describe the way mine is set up, which I believe is factory-original. The backstay is essentially about a foot and a half short of the chainplate on the transom. This "gap" is filled by what I call the "tail": a foot and a half length of wire stay. One end has a standard non-adjustable swage fitting that attaches to the chainplate on the transom. The other end has a similar fitting that is attached to a flat triangular plate. This plate has a hole near each of its three points. The Tail is attached to one of these holes; the backstay (with the adjustable turnbuckle at the end) is attached to another of the holes. When you are attaching the tail and backstay to the triangle, remember that when assembled the third point on the triangle MUST POINT INBOARD. The mainsheet is attached to the end of the boom and the other end is anchored to this third hole of the triangle. This arrangement allows for end boom sheeting, and keeps the mainsheet out of the way. It does put stress on the backstay and it does mean that you can't have a traveler without some major boat surgery, but hey, you didn't buy the Oday 23 to race anyway. Besides, I have found I get a lot of the same sail control with my boom vang. Hope this helps.
not the best design
Mike Thanks for the response. The attachment of the mainsheet to the plate is not a great design. What happens if you have a crash gybe ? The stress of the weight from the mainsail, boom and mast must be huge on the back stays and plates. Has anyone changed this design ? I'd love to hear of any modifications.
Mike Thanks for the response. The attachment of the mainsheet to the plate is not a great design. What happens if you have a crash gybe ? The stress of the weight from the mainsail, boom and mast must be huge on the back stays and plates. Has anyone changed this design ? I'd love to hear of any modifications.
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Bob
One alternative
I don't have an OD23 but know them to be good boats and I race against a couple of well-sailed 25s. Never have liked that sheeting arrangement. My Ericson 23 has a real good set-up (for me) that you might consider in your search for a better arrangement. My traveler track is about 6" aft of the companionway, spans the cockpit, and the boom bale is about a foot forward of the end of the boom. This means the mainsheet goes down and forward from the boom to the car, but this has caused no problems so far and I push the boat pretty hard. I have a Harken windward sheeting car and consider it to be one of the best improvements I've made on the boat - in blustery conditions I adjust the car at least as often as I move the tiller. Many people don't like a traveler in the cockpit, but once you get used to it you don't really think about it, and the increase in performance ergonomics is well worth the inconvenience (at least to me.) When the boat is docked, you just sheet the boom way off center and access to the cabin is good.
I don't have an OD23 but know them to be good boats and I race against a couple of well-sailed 25s. Never have liked that sheeting arrangement. My Ericson 23 has a real good set-up (for me) that you might consider in your search for a better arrangement. My traveler track is about 6" aft of the companionway, spans the cockpit, and the boom bale is about a foot forward of the end of the boom. This means the mainsheet goes down and forward from the boom to the car, but this has caused no problems so far and I push the boat pretty hard. I have a Harken windward sheeting car and consider it to be one of the best improvements I've made on the boat - in blustery conditions I adjust the car at least as often as I move the tiller. Many people don't like a traveler in the cockpit, but once you get used to it you don't really think about it, and the increase in performance ergonomics is well worth the inconvenience (at least to me.) When the boat is docked, you just sheet the boom way off center and access to the cabin is good.
K
Keith
Early 23 Mainsheet is Not on Backstay
Sorry I did not get back to you earlier; have been traveling. The early 23's did not have the mainsheet rigged to the backstay. Your triangle plate that joins the split stay is too high. Thought it was visible in one of the pictures I sent. They used a system anchored to both transom ends of the cockpit coaming. The port side has a single block with anchor pin and cam cleat; the boom has a double block; the starboard has a single block. The mainsheet spliced eye ends on the pin at port. The mainsheet passes through the boom end block, through the single block at starboard, back through the boom end block, through the single block at port and through the cam cleat. My mainsheet is 53' of 3/8" double-braided. Works great and I would not change it.
Sorry I did not get back to you earlier; have been traveling. The early 23's did not have the mainsheet rigged to the backstay. Your triangle plate that joins the split stay is too high. Thought it was visible in one of the pictures I sent. They used a system anchored to both transom ends of the cockpit coaming. The port side has a single block with anchor pin and cam cleat; the boom has a double block; the starboard has a single block. The mainsheet spliced eye ends on the pin at port. The mainsheet passes through the boom end block, through the single block at starboard, back through the boom end block, through the single block at port and through the cam cleat. My mainsheet is 53' of 3/8" double-braided. Works great and I would not change it.
thanks
Keith Many thanks as always. Having relooked at the photos and taking all these comments I have everything that I need. Rigging today.
Keith Many thanks as always. Having relooked at the photos and taking all these comments I have everything that I need. Rigging today.
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