I have a swing keel Oday 25 on a trailer and have seen a brochure depicting a system used to raise and lower the mast that uses guide lines or cables to steady the boom during this operation. Does anyone have specifications for the rigging to install this modification? What I need are the triangular plates, I believe I can get these at West Marine, installed in the port and starboard stays. I do not know which stay, inboard or outboard, I would assume inboard and the location that the plates should be installed in the stays. I believe that they would be installed about level with the bottom of the mast or about two feet off the deck. Any information on this design would be greatly appreciated.
- Status
your correct
I also have an O'day 25 and have wondered what those triangular plates were for. Your desciption is correct, the plates are on the outside stays just above the mast base in height. I also await someones description on how there are used to raise and lower the mast. jack
I also have an O'day 25 and have wondered what those triangular plates were for. Your desciption is correct, the plates are on the outside stays just above the mast base in height. I also await someones description on how there are used to raise and lower the mast. jack
Thank you for the information
Thank you very much for the information. Jack in Tampa Bay. Would you have the exact dimension from the centerline of the clevis pin at the deck to the center line of the triangular plate? With this dimension I could get West Marine to fabricate a new stay with the plate. Thank you
Thank you very much for the information. Jack in Tampa Bay. Would you have the exact dimension from the centerline of the clevis pin at the deck to the center line of the triangular plate? With this dimension I could get West Marine to fabricate a new stay with the plate. Thank you
mast raising
the side to side control comes from stays that are mounted in such a way, that the mast pivet point is level and directly opposite the bases/mounting point. of the stays so that they form a right triangle with the mast and swing up at the same angle like one long hinge. mac gregor and others use the same basic system, but raise the mast forward, rather than pulling up from the cockpit. either way will work, the gin pole/boom is just attached to front of the mast, usually with a mount on the cabin top rather than attaching it to the mast.
the side to side control comes from stays that are mounted in such a way, that the mast pivet point is level and directly opposite the bases/mounting point. of the stays so that they form a right triangle with the mast and swing up at the same angle like one long hinge. mac gregor and others use the same basic system, but raise the mast forward, rather than pulling up from the cockpit. either way will work, the gin pole/boom is just attached to front of the mast, usually with a mount on the cabin top rather than attaching it to the mast.
Oh, man
this is so much easier to do than wrestling it up. The triangular plate is 2" wide, 1-3/4" tall and 3/16" thick. The distance between the cl of clevis pin on the chainplate and the centerline of the 1-3/4" side of the traingle is 15-1/4". You will have to get new stays or have your old ones modified to accept the triangle because the triangle is part of the outboard stay.
this is so much easier to do than wrestling it up. The triangular plate is 2" wide, 1-3/4" tall and 3/16" thick. The distance between the cl of clevis pin on the chainplate and the centerline of the 1-3/4" side of the traingle is 15-1/4". You will have to get new stays or have your old ones modified to accept the triangle because the triangle is part of the outboard stay.
Splash down on Saturday...
I will be launching on saturday.(Lord willing) If I can find some one to snap some digitals with my camera, I will try to post a fairly simple system that can be done single handed. I think that the triangular plates compromise rig strength. I perfer a shroud that goes from the mast to the chainplate with only a turn buckle in between. Fewer swag fittings to worry about. My system is a simple common system that has a post about 8' long mounted in the stearn and tied to the stearn push pit. First the temp post with a roller on the top is lashed to the stearn push pit. Then one person can pick up the mast and set the head of the mast on the roller. Slowly push the mast aft( caution so that none of the shrouds/turn buckle assemblies jack knife) until the aft pin can be installed into the mast foot( tabernacle). Tie the main halyard off to the cleat near the tabernacle. (This is so that you do not rely on the splice/ snap shackle fitting to carry the weight of the mast) Tie a bowline on the bitter end of the main halyard. Connect your main sheet block on the rear hole of the bow connection for the jib. Connect the lose block of the main tackle to the bowline in the main halyard. Stand on the companionway hatch to steady the mast. Trim the main sheet and the mast will start to move upright. Again, steady the mast as it raises. when in an upright position,connect the forestay or foller furling to the fore most hole in the bow connection. Please note that the back stay is connected before this opreation. Also the upper and lower stays are also connected prior to this operation. Yes they are loose to start this mast raising system. r.w.landau "79" O'Day 25 cb "Continuance"
I will be launching on saturday.(Lord willing) If I can find some one to snap some digitals with my camera, I will try to post a fairly simple system that can be done single handed. I think that the triangular plates compromise rig strength. I perfer a shroud that goes from the mast to the chainplate with only a turn buckle in between. Fewer swag fittings to worry about. My system is a simple common system that has a post about 8' long mounted in the stearn and tied to the stearn push pit. First the temp post with a roller on the top is lashed to the stearn push pit. Then one person can pick up the mast and set the head of the mast on the roller. Slowly push the mast aft( caution so that none of the shrouds/turn buckle assemblies jack knife) until the aft pin can be installed into the mast foot( tabernacle). Tie the main halyard off to the cleat near the tabernacle. (This is so that you do not rely on the splice/ snap shackle fitting to carry the weight of the mast) Tie a bowline on the bitter end of the main halyard. Connect your main sheet block on the rear hole of the bow connection for the jib. Connect the lose block of the main tackle to the bowline in the main halyard. Stand on the companionway hatch to steady the mast. Trim the main sheet and the mast will start to move upright. Again, steady the mast as it raises. when in an upright position,connect the forestay or foller furling to the fore most hole in the bow connection. Please note that the back stay is connected before this opreation. Also the upper and lower stays are also connected prior to this operation. Yes they are loose to start this mast raising system. r.w.landau "79" O'Day 25 cb "Continuance"
have a picture of the plate in question
I will post the picture if I can figure out how. I unstepped the mast, and then stepped it bofore I sailed her the first time. I did have a very strong helper, but now feel my wife and I could do it with no problems if she were as confident as I.
I will post the picture if I can figure out how. I unstepped the mast, and then stepped it bofore I sailed her the first time. I did have a very strong helper, but now feel my wife and I could do it with no problems if she were as confident as I.
- Status