The rigger who put on my new headsail roller furler said that the CD mast was designed to have a slight aft bend near the top. He was referring to bend, not rake. So after he had installed the roller furler, he took a few extra turns in the back stay and this produced a slight backward curve of a couple of inches or so toward the top. More recently, a local boat repairman---though not a rigging specialist---said that the mast should be perfectly straight. He advised me to readjust the back stay to bring the mast back to a straight line. Who should I believe?
rbtfsh@utb1.utb.edu
CD 28 mast bend
Moderator: Jim Walsh
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joe sankey
Re: CD 28 mast bend
Robert:
Can't say for sure, but having owned a 28 I tend to agree with your friend who says it should be straight. Rake can have some impact on weather helm; I don't think bend is recommended.
Joe
sankey@gulftel.com
Can't say for sure, but having owned a 28 I tend to agree with your friend who says it should be straight. Rake can have some impact on weather helm; I don't think bend is recommended.
Joe
Robert wrote: The rigger who put on my new headsail roller furler said that the CD mast was designed to have a slight aft bend near the top. He was referring to bend, not rake. So after he had installed the roller furler, he took a few extra turns in the back stay and this produced a slight backward curve of a couple of inches or so toward the top. More recently, a local boat repairman---though not a rigging specialist---said that the mast should be perfectly straight. He advised me to readjust the back stay to bring the mast back to a straight line. Who should I believe?
sankey@gulftel.com
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Anthony P. Jeske
Re: CD 28 mast bend
Robert:
Don't you just hate it when you get well meant, but totally wrong advice?
Here's some more well meant, but hopefully correct, advice:
The Cape Dory Owner's Manual, in section 3.27, paragraph 6 states: "Tighten every shroud and stay so that they have the correct tension and the mast is stayed plumb with no bends or curves in it..."
Fair Winds,
Tony Jeske
ajesek@ixpres.com
Don't you just hate it when you get well meant, but totally wrong advice?
Here's some more well meant, but hopefully correct, advice:
The Cape Dory Owner's Manual, in section 3.27, paragraph 6 states: "Tighten every shroud and stay so that they have the correct tension and the mast is stayed plumb with no bends or curves in it..."
Fair Winds,
Tony Jeske
ajesek@ixpres.com
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marv Brinn
Re: CD 28 mast bend
Some mast bend is ok above the shrouds and can actually be desireable..( I am talking from point of someone that raced..)Robert wrote: The rigger who put on my new headsail roller furler said that the CD mast was designed to have a slight aft bend near the top. He was referring to bend, not rake. So after he had installed the roller furler, he took a few extra turns in the back stay and this produced a slight backward curve of a couple of inches or so toward the top. More recently, a local boat repairman---though not a rigging specialist---said that the mast should be perfectly straight. He advised me to readjust the back stay to bring the mast back to a straight line. Who should I believe?
the bend can be helpful in bleeding off puffs and dpowering the rig.
I dont see how one could design a mast so stiff as to prevent it.
mibrinn@aol.com
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Greg Kozlowski
Re: CD 28 mast bend
Robert,
I had been given the same advice re putting a slight bend into the mast of my former boat, an Alberg 30. The advice was from a sail maker and working with a rigger we put the bend in by tightening more on the backstay and slightly more on the forward lowers than the aft ones. The idea was that this would produce a "bow" effect which would give more tension to the forestay, thus reducing the sag in the genoa which tended to pull the boat over on its ear and, thus, agrevate the weather helm. I had sailed with the bend for something like three seasons and can only speak well of the effects produced: The Alberg became less tender and weather helm in heavy weather was significantly reduced. I don' know whether the mast section on the CD is designed to take a bit of bend, but I imagine it isn't much different from the one on my former 1966 Alberg.
I should add, though, that though this type of mast tunning made my Alberg somewhat faster than the others in my area, I was the only one with this slight bend.
Your call in the end.
Greg
s/v Sherpa, CD36
koz@seijo.ac.jp
I had been given the same advice re putting a slight bend into the mast of my former boat, an Alberg 30. The advice was from a sail maker and working with a rigger we put the bend in by tightening more on the backstay and slightly more on the forward lowers than the aft ones. The idea was that this would produce a "bow" effect which would give more tension to the forestay, thus reducing the sag in the genoa which tended to pull the boat over on its ear and, thus, agrevate the weather helm. I had sailed with the bend for something like three seasons and can only speak well of the effects produced: The Alberg became less tender and weather helm in heavy weather was significantly reduced. I don' know whether the mast section on the CD is designed to take a bit of bend, but I imagine it isn't much different from the one on my former 1966 Alberg.
I should add, though, that though this type of mast tunning made my Alberg somewhat faster than the others in my area, I was the only one with this slight bend.
Your call in the end.
Greg
s/v Sherpa, CD36
koz@seijo.ac.jp