Seems like almost every M-17 owner leaves the backstay and shrouds attached when trailering. With a CDI furler on my forestay, it would be difficult to pin the stay to the bow fitting, unless the backstay is loosened. Seems to me that a Johnson Quick Release Lever would allow the mast to move forward enough to easily pin the forestay. Then a quick closing of the lever would tension up the backstay. Does anyone out there do such a thing? Is there any danger of over-tensioning the shrouds if they are left attached without loosening? Thanks, Mark House World's Slowest M-17 Rigger
Mark, IMHO, the best approach to backstay tensioning on an M-17 is to use a split backstay car (Johnson Marine 38-203) connected to the padeye on the port side of the transom by a four-part tensioner. I made one up using a Trapeze and Vang cleat (Duckworks, SD-002530) connected to the car and a small fiddle block (Duckworks, RL-378-A) connected to the transom. The whole setup is about $100. The vang cleat has a block and built-in clam cleat that makes tensioning a breeze. I normally leave it untensioned when on the trailer, which leaves the mast ready to be unshipped, and adjust it as necessary under way. I also have a CDI furler, but even without one it's difficult to pin the forestay with the backstay under tension. Now I think of it, maybe it's only a three-part connection, but what the heck, it works. If the shrouds are over-tensioned, you'll have trouble raising the mast. When adjusted right (taut, but not tight), you should be able to get the mast up and down without much if any adjustment to the shrouds. Best, Rick M-17 #633 Lynne L On Sun, Jun 5, 2011 at 12:17 AM, Mark House <itsmark@bresnan.net> wrote:
Seems like almost every M-17 owner leaves the backstay and shrouds attached when trailering. With a CDI furler on my forestay, it would be difficult to pin the stay to the bow fitting, unless the backstay is loosened. Seems to me that a Johnson Quick Release Lever would allow the mast to move forward enough to easily pin the forestay. Then a quick closing of the lever would tension up the backstay. Does anyone out there do such a thing? Is there any danger of over-tensioning the shrouds if they are left attached without loosening?
Thanks, Mark House World's Slowest M-17 Rigger _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
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I agree with Rick. Having a backstay adjuster gives lots of range to pin the forestay when when rigging. With either a furler or hanked on jib, you will have the benefit of being able to tension the forestay properly for upwind (tight) or offwind (loose) to get best performance, by using the backstay adjuster. Think of the fore/aft standing rigging as being fairly dynamic and use it to your advantage. Bill Makin' Time M17 #622 (Still not in the water this season) On 6/5/11, Rick Davies <jdavies104@gmail.com> wrote:
Mark,
IMHO, the best approach to backstay tensioning on an M-17 is to use a split backstay car (Johnson Marine 38-203) connected to the padeye on the port side of the transom by a four-part tensioner. I made one up using a Trapeze and Vang cleat (Duckworks, SD-002530) connected to the car and a small fiddle block (Duckworks, RL-378-A) connected to the transom. The whole setup is about $100. The vang cleat has a block and built-in clam cleat that makes tensioning a breeze. I normally leave it untensioned when on the trailer, which leaves the mast ready to be unshipped, and adjust it as necessary under way. I also have a CDI furler, but even without one it's difficult to pin the forestay with the backstay under tension.
Now I think of it, maybe it's only a three-part connection, but what the heck, it works.
If the shrouds are over-tensioned, you'll have trouble raising the mast. When adjusted right (taut, but not tight), you should be able to get the mast up and down without much if any adjustment to the shrouds.
Best,
Rick M-17 #633 Lynne L
On Sun, Jun 5, 2011 at 12:17 AM, Mark House <itsmark@bresnan.net> wrote:
Seems like almost every M-17 owner leaves the backstay and shrouds attached when trailering. With a CDI furler on my forestay, it would be difficult to pin the stay to the bow fitting, unless the backstay is loosened. Seems to me that a Johnson Quick Release Lever would allow the mast to move forward enough to easily pin the forestay. Then a quick closing of the lever would tension up the backstay. Does anyone out there do such a thing? Is there any danger of over-tensioning the shrouds if they are left attached without loosening?
Thanks, Mark House World's Slowest M-17 Rigger _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
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Mark, It sounds as if we have similar setups. I too was worried about shroud tension, but like others I found that the rounding on the forward side of the mast base keep the shrouds from tightening too much. The backstay turnbuckle has to be backed off three or so turns for me to get the CDI drum attached, but that only requires pulling a couple of cotter pins. I looked into the Johnson quick release that Larry Yake uses, and I will definitely go that route after I make sure it is sized so I won't have to replace the backstay. Hopefully I will see Larry's boat this week and will make the measurements. Since he rigs in 30 minutes, I also hope to snoop around for his other tricks. Actually, I get my boat in the water pretty fast, but pulling it out and preparing for the road takes the time. I found that securing the CDI to the mast and coiling up the wires so they won't rub was really time consuming, so I got some Secure Cable Ties (securecableties.com) in the 24" length (18" might be as good), and wrapped them on every 3' or so, saving another 10-15 minutes. On a similar subject, I am trying to keep the factory electrical connection system at the mast foot, but I found that the wire jammed in the slot that is part of the mast extrusion when I dropped the mast. I closed the slot for a few inches with epoxy, and seem to have solved the problem, but there is no way to replace the insulation that was torn off before I wised up. Tom Jenkins (World's second slowest 17 rigger, but getting faster) On Jun 4, 2011, at 9:17 PM, Mark House wrote:
Seems like almost every M-17 owner leaves the backstay and shrouds attached when trailering. With a CDI furler on my forestay, it would be difficult to pin the stay to the bow fitting, unless the backstay is loosened. Seems to me that a Johnson Quick Release Lever would allow the mast to move forward enough to easily pin the forestay. Then a quick closing of the lever would tension up the backstay. Does anyone out there do such a thing? Is there any danger of over-tensioning the shrouds if they are left attached without loosening?
Thanks, Mark House World's Slowest M-17 Rigger _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
When posting, remember that there is no privacy on the Internet!
Tom: Did you mean rounding on the aft of the mast base? ~~~_/)~~~ Gary Sent from my iPhone :-) On Jun 5, 2011, at 9:31 AM, Tom Jenkins <tjenk@gte.net> wrote:
Mark, It sounds as if we have similar setups. I too was worried about shroud tension, but like others I found that the rounding on the forward side of the mast base keep the shrouds from tightening too much. The backstay turnbuckle has to be backed off three or so turns for me to get the CDI drum attached, but that only requires pulling a couple of cotter pins. I looked into the Johnson quick release that Larry Yake uses, and I will definitely go that route after I make sure it is sized so I won't have to replace the backstay. Hopefully I will see Larry's boat this week and will make the measurements. Since he rigs in 30 minutes, I also hope to snoop around for his other tricks. Actually, I get my boat in the water pretty fast, but pulling it out and preparing for the road takes the time. I found that securing the CDI to the mast and coiling up the wires so they won't rub was really time consuming, so I got some Secure Cable Ties (securecableties.com) in the 24" length (18" might be as good), and wrapped them on every 3' or so, saving another 10-15 minutes. On a similar subject, I am trying to keep the factory electrical connection system at the mast foot, but I found that the wire jammed in the slot that is part of the mast extrusion when I dropped the mast. I closed the slot for a few inches with epoxy, and seem to have solved the problem, but there is no way to replace the insulation that was torn off before I wised up.
Tom Jenkins (World's second slowest 17 rigger, but getting faster)
On Jun 4, 2011, at 9:17 PM, Mark House wrote:
Seems like almost every M-17 owner leaves the backstay and shrouds attached when trailering. With a CDI furler on my forestay, it would be difficult to pin the stay to the bow fitting, unless the backstay is loosened. Seems to me that a Johnson Quick Release Lever would allow the mast to move forward enough to easily pin the forestay. Then a quick closing of the lever would tension up the backstay. Does anyone out there do such a thing? Is there any danger of over-tensioning the shrouds if they are left attached without loosening?
Thanks, Mark House World's Slowest M-17 Rigger _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
When posting, remember that there is no privacy on the Internet!
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Gary, Just making sure you are on your toes; of course the curve is on the aft side, and the wire got caught in the sail slot :-) Tom On Jun 5, 2011, at 12:27 PM, Gary M Hyde wrote:
Tom: Did you mean rounding on the aft of the mast base?
~~~_/)~~~ Gary Sent from my iPhone :-)
On Jun 5, 2011, at 9:31 AM, Tom Jenkins <tjenk@gte.net> wrote:
Mark, It sounds as if we have similar setups. I too was worried about shroud tension, but like others I found that the rounding on the forward side of the mast base keep the shrouds from tightening too much. The backstay turnbuckle has to be backed off three or so turns for me to get the CDI drum attached, but that only requires pulling a couple of cotter pins. I looked into the Johnson quick release that Larry Yake uses, and I will definitely go that route after I make sure it is sized so I won't have to replace the backstay. Hopefully I will see Larry's boat this week and will make the measurements. Since he rigs in 30 minutes, I also hope to snoop around for his other tricks. Actually, I get my boat in the water pretty fast, but pulling it out and preparing for the road takes the time. I found that securing the CDI to the mast and coiling up the wires so they won't rub was really time consuming, so I got some Secure Cable Ties (securecableties.com) in the 24" length (18" might be as good), and wrapped them on every 3' or so, saving another 10-15 minutes. On a similar subject, I am trying to keep the factory electrical connection system at the mast foot, but I found that the wire jammed in the slot that is part of the mast extrusion when I dropped the mast. I closed the slot for a few inches with epoxy, and seem to have solved the problem, but there is no way to replace the insulation that was torn off before I wised up.
Tom Jenkins (World's second slowest 17 rigger, but getting faster)
On Jun 4, 2011, at 9:17 PM, Mark House wrote:
Seems like almost every M-17 owner leaves the backstay and shrouds attached when trailering. With a CDI furler on my forestay, it would be difficult to pin the stay to the bow fitting, unless the backstay is loosened. Seems to me that a Johnson Quick Release Lever would allow the mast to move forward enough to easily pin the forestay. Then a quick closing of the lever would tension up the backstay. Does anyone out there do such a thing? Is there any danger of over-tensioning the shrouds if they are left attached without loosening?
Thanks, Mark House World's Slowest M-17 Rigger _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/ montgomery_boats
When posting, remember that there is no privacy on the Internet!
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
When posting, remember that there is no privacy on the Internet!
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participants (5)
-
Bill Wickett -
Gary M Hyde -
Mark House -
Rick Davies -
Tom Jenkins