Re: Stus-List 33 mk2 Mast step loads
Greg, I cannot speak to the structural analysis involved but I would not be at all comfortable leaving that space unfilled. Not sure the small benefit of departing from the designer's intent is worth the risk... just an opinion. And the heat thing is minimized by mixing smaller batches - less concentration, more surface area. Dave Sent from my iPhone > On Jun 28, 2017, at 7:07 AM, Greg Sutherland <bluenosesail...@hotmail.com> > wrote: > > Hey Russ, > > The sika has amazing freeze thaw properties and the reason I began looking > outside of the standard epoxies or resins was due to my general lack of > knowledge and also a bit concerned with the depth of material needed, and the > heat generated while kicking off and curing. I was surprised when Dave went > in that direction because I was under the impression the boat would catch > fire or in the very least the end result would be brittle. After reading his > process last night I think his success was using less catalyst but it's all > foreign to me so I have no clue. (Awesome job btw) > After a bit of thought, would it really matter if I left that area open and > not fill the entire cavity? If I have a substantial compression post that is > held fast around the forward keel bolt to keep it in position, couldn't it be > open like the bilge on the other side? As long as the top of the area is > secured and glassed back into the structure around the keelbolts with the > steel plates I think it should be fine. I also contemplated drilling limber > holes from that cavity into the bilge so that if and when water gets in, it > would also drain out. > > On Jun 28, 2017, at 9:36 AM, Russ & Melody via CnC-List > <cnc-list@cnc-list.com> wrote: > >> >> Hi Greg, >> >> If you want to spend extra... we used Pilgrim Magmaflow epoxy grout under >> the frame of the turbogenerater. Excellent flow characteristics if there is >> an awkward cavity to reach. It might be better than traditional grouts >> during freeze cycles if there is water present. >> >> A little over done for the job perhaps but you will smile. >> >> Cheers, Russ >> Sweet 35 mk-1 >> >> At 04:38 AM 28/06/2017, you wrote: >>> Content-Language: en-CA >>> Content-Type: multipart/alternative; >>> >>> boundary="_000_BY2PR02MB458EF9750B90832967E2CBFB1DD0BY2PR02MB458namprd_" >>> >>> I'm loving your input gentleman, >>> >>> I agree completely. I come from a construction background so plan on using >>> a cement type of mortar used for anchoring large industrial equipment. Once >>> fully cured it has a load rating of 8100 lbs/sq in, doesn't shrink and is >>> unaffected by water. I was certain the loads wouldn't exceed that but >>> wanted to make sure. My plan going forward once excavated was to pour 4-5 >>> " of the mortar to level up the base and then fabricate a steel post with a >>> bottom and top plate with a hole for the forward keel bolt to hold >>> everything in place and then glass in the top. I was tempted to just fill >>> the entire cavity with the mortar and move on but thought the compression >>> post was a better plan.until I read what your father said. Maybe >>> he's right, top it up and call it a day. >>> >>> The mortar I plan to use is called Sikagrout 212 but states that after 6" >>> of depth you need an aggregate filler. Maybe something with less weight >>> could be used to retain strength in the grout and filling the cavity would >>> definitely be the way to go. >>> Thought? >>> >>> Greg >>> >>> >>> On Jun 28, 2017, at 7:35 AM, Dave S via CnC-List <cnc-list@cnc-list.com> >>> wrote: >>> >>>> Greg - agreed with Russ (and Joe.) When I did mine I briefly went down >>>> the calculation rabbit hole, looking at the properties of materials etc >>>> and I realized there was no way for me to calculate the hypothetical >>>> combined load of keel bolt torque, mast/rig, and one bolt's worth of >>>> bashing a rock at 4kts. My brain elected to look at the original >>>> construction and make it stronger (compression posts, epoxy, carbon >>>> fibre) and move on to other projects. I used glass and carbon fibre >>>> (recommended by the local composites purveyor) instead of AL as others >>>> have done, but, same idea. My dad (builder of many boats- now in NS) >>>> suggested concrete as fill and he was probably
Re: Stus-List 33 mk2 Mast step loads
Hey Russ, The sika has amazing freeze thaw properties and the reason I began looking outside of the standard epoxies or resins was due to my general lack of knowledge and also a bit concerned with the depth of material needed, and the heat generated while kicking off and curing. I was surprised when Dave went in that direction because I was under the impression the boat would catch fire or in the very least the end result would be brittle. After reading his process last night I think his success was using less catalyst but it's all foreign to me so I have no clue. (Awesome job btw) After a bit of thought, would it really matter if I left that area open and not fill the entire cavity? If I have a substantial compression post that is held fast around the forward keel bolt to keep it in position, couldn't it be open like the bilge on the other side? As long as the top of the area is secured and glassed back into the structure around the keelbolts with the steel plates I think it should be fine. I also contemplated drilling limber holes from that cavity into the bilge so that if and when water gets in, it would also drain out. On Jun 28, 2017, at 9:36 AM, Russ & Melody via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: Hi Greg, If you want to spend extra... we used Pilgrim Magmaflow epoxy grout under the frame of the turbogenerater. Excellent flow characteristics if there is an awkward cavity to reach. It might be better than traditional grouts during freeze cycles if there is water present. A little over done for the job perhaps but you will smile. Cheers, Russ Sweet 35 mk-1 At 04:38 AM 28/06/2017, you wrote: Content-Language: en-CA Content-Type: multipart/alternative; boundary="_000_BY2PR02MB458EF9750B90832967E2CBFB1DD0BY2PR02MB458namprd_" I'm loving your input gentleman, I agree completely. I come from a construction background so plan on using a cement type of mortar used for anchoring large industrial equipment. Once fully cured it has a load rating of 8100 lbs/sq in, doesn't shrink and is unaffected by water. I was certain the loads wouldn't exceed that but wanted to make sure. My plan going forward once excavated was to pour 4-5 " of the mortar to level up the base and then fabricate a steel post with a bottom and top plate with a hole for the forward keel bolt to hold everything in place and then glass in the top. I was tempted to just fill the entire cavity with the mortar and move on but thought the compression post was a better plan.until I read what your father said. Maybe he's right, top it up and call it a day. The mortar I plan to use is called Sikagrout 212 but states that after 6" of depth you need an aggregate filler. Maybe something with less weight could be used to retain strength in the grout and filling the cavity would definitely be the way to go. Thought? Greg On Jun 28, 2017, at 7:35 AM, Dave S via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: Greg - agreed with Russ (and Joe.) When I did mine I briefly went down the calculation rabbit hole, looking at the properties of materials etc and I realized there was no way for me to calculate the hypothetical combined load of keel bolt torque, mast/rig, and one bolt's worth of bashing a rock at 4kts. My brain elected to look at the original construction and make it stronger (compression posts, epoxy, carbon fibre) and move on to other projects. I used glass and carbon fibre (recommended by the local composites purveyor) instead of AL as others have done, but, same idea. My dad (builder of many boats- now in NS) suggested concrete as fill and he was probably right. Dave -- Forwarded message -- From: "Russ & Melody" <russ...@telus.net<mailto:russ...@telus.net>> To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc: Bcc: Date: Tue, 27 Jun 2017 21:52:15 -0700 Subject: Re: Stus-List 33 mk2 Mast step loads Hi Dave, Watch those units. 4000 PSI on a 6" x 8" mast step plane is out of this world for a 33 foot boat. When I did the mast loading while designing the rig of my old 60' cruiser it was 100,000 lbs and he's telling you it's twice that?? I would go with Joe's suggestion of 1/2" aluminum plate and move on to other projects. Cheers, Russ Sweet 35 mk-1 At 08:24 AM 27/06/2017, you wrote: Content-Language: en-CA Content-Type: multipart/alternative; boundary="_000_BY2PR02MB458E0206231C27457085F24B1DC0BY2PR02MB458namprd_" Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Kno
Re: Stus-List 33 mk2 Mast step loads
Well you need to sleeve the 2 keel bolts for keel maintenance/removal anyway, so this requires a post or tube regardless, prior to the pour. Only other thing I would add (and it's a no-brainer) is to ensure that the 'floor' (large transverse rib) you cut under the mast step is adequately reinforced, both transversely and longitudinally. the once continuous glass spanning the keel stub isn't continuous any more so you want to rebuild/reinforce that. Again, that's pretty obvious I think. This is part of why I switched to very heavily glass filled epoxy at the top of my keel fill, and then built out a tapering cross of biaxial stitch mat and height modulus carbon spanning the whole region. Have flogged the boat hard this spring and am looking forward to lifting the sole and inspecting in October. Dave Sent from my iPhone > On Jun 28, 2017, at 7:38 AM, Greg Sutherland <bluenosesail...@hotmail.com> > wrote: > > I'm loving your input gentleman, > > I agree completely. I come from a construction background so plan on using a > cement type of mortar used for anchoring large industrial equipment. Once > fully cured it has a load rating of 8100 lbs/sq in, doesn't shrink and is > unaffected by water. I was certain the loads wouldn't exceed that but wanted > to make sure. My plan going forward once excavated was to pour 4-5 " of the > mortar to level up the base and then fabricate a steel post with a bottom and > top plate with a hole for the forward keel bolt to hold everything in place > and then glass in the top. I was tempted to just fill the entire cavity with > the mortar and move on but thought the compression post was a better > plan.until I read what your father said. Maybe he's right, top it up > and call it a day. > > The mortar I plan to use is called Sikagrout 212 but states that after 6" of > depth you need an aggregate filler. Maybe something with less weight could be > used to retain strength in the grout and filling the cavity would definitely > be the way to go. > Thought? > > Greg > > > On Jun 28, 2017, at 7:35 AM, Dave S via CnC-List <cnc-list@cnc-list.com> > wrote: > >> Greg - agreed with Russ (and Joe.) When I did mine I briefly went down the >> calculation rabbit hole, looking at the properties of materials etc and I >> realized there was no way for me to calculate the hypothetical combined load >> of keel bolt torque, mast/rig, and one bolt's worth of bashing a rock at >> 4kts. My brain elected to look at the original construction and make it >> stronger (compression posts, epoxy, carbon fibre) and move on to other >> projects. I used glass and carbon fibre (recommended by the local >> composites purveyor) instead of AL as others have done, but, same idea. >> My dad (builder of many boats- now in NS) suggested concrete as fill and he >> was probably right. >> >> Dave >> >> >> >> -- Forwarded message -- >> From: "Russ & Melody" <russ...@telus.net> >> To: cnc-list@cnc-list.com >> Cc: >> Bcc: >> Date: Tue, 27 Jun 2017 21:52:15 -0700 >> Subject: Re: Stus-List 33 mk2 Mast step loads >> >> Hi Dave, >> >> Watch those units. >> 4000 PSI on a 6" x 8" mast step plane is out of this world for a 33 foot >> boat. >> When I did the mast loading while designing the rig of my old 60' cruiser it >> was 100,000 lbs and he's telling you it's twice that?? >> >> I would go with Joe's suggestion of 1/2" aluminum plate and move on to other >> projects. >> >> Cheers, Russ >> Sweet 35 mk-1 >> >> At 08:24 AM 27/06/2017, you wrote: >>> Content-Language: en-CA >>> Content-Type: multipart/alternative; >>> >>> boundary="_000_BY2PR02MB458E0206231C27457085F24B1DC0BY2PR02MB458namprd_" >>> >>> Thanks everyone for the info. I spoke with Danny from Klacko spars >>> yesterday and he's certain that he would have installed my original mast in >>> '87. He figures even when falling into a wave with full sails the forces >>> wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. >>> I thought I notice Mr. Knowles at the club on the weekend so I'll >>> definitely run it past him - thanks for mentioning that. >>> >>> I have the entire mast step "excavated" to the keel and am starting the >>> rebuild. Can't wait for this one to be finished! >>> >>> Thanks! >>> Greg >>> 33 mk2 >>> Halifax >&g
Re: Stus-List 33 mk2 Mast step loads
Hi Greg, If you want to spend extra... we used Pilgrim Magmaflow epoxy grout under the frame of the turbogenerater. Excellent flow characteristics if there is an awkward cavity to reach. It might be better than traditional grouts during freeze cycles if there is water present. A little over done for the job perhaps but you will smile. Cheers, Russ Sweet 35 mk-1 At 04:38 AM 28/06/2017, you wrote: Content-Language: en-CA Content-Type: multipart/alternative; boundary="_000_BY2PR02MB458EF9750B90832967E2CBFB1DD0BY2PR02MB458namprd_" I'm loving your input gentleman, I agree completely. I come from a construction background so plan on using a cement type of mortar used for anchoring large industrial equipment. Once fully cured it has a load rating of 8100 lbs/sq in, doesn't shrink and is unaffected by water. I was certain the loads wouldn't exceed that but wanted to make sure. My plan going forward once excavated was to pour 4-5 " of the mortar to level up the base and then fabricate a steel post with a bottom and top plate with a hole for the forward keel bolt to hold everything in place and then glass in the top. I was tempted to just fill the entire cavity with the mortar and move on but thought the compression post was a better plan.until I read what your father said. Maybe he's right, top it up and call it a day. The mortar I plan to use is called Sikagrout 212 but states that after 6" of depth you need an aggregate filler. Maybe something with less weight could be used to retain strength in the grout and filling the cavity would definitely be the way to go. Thought? Greg On Jun 28, 2017, at 7:35 AM, Dave S via CnC-List <<mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com> wrote: Greg - agreed with Russ (and Joe.) When I did mine I briefly went down the calculation rabbit hole, looking at the properties of materials etc and I realized there was no way for me to calculate the hypothetical combined load of keel bolt torque, mast/rig, and one bolt's worth of bashing a rock at 4kts. My brain elected to look at the original construction and make it stronger (compression posts, epoxy, carbon fibre) and move on to other projects. I used glass and carbon fibre (recommended by the local composites purveyor) instead of AL as others have done, but, same idea. My dad (builder of many boats- now in NS) suggested concrete as fill and he was probably right. Dave -- Forwarded message -- From: "Russ & Melody" <<mailto:russ...@telus.net>russ...@telus.net> To: <mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com Cc: Bcc: Date: Tue, 27 Jun 2017 21:52:15 -0700 Subject: Re: Stus-List 33 mk2 Mast step loads Hi Dave, Watch those units. 4000 PSI on a 6" x 8" mast step plane is out of this world for a 33 foot boat. When I did the mast loading while designing the rig of my old 60' cruiser it was 100,000 lbs and he's telling you it's twice that?? I would go with Joe's suggestion of 1/2" aluminum plate and move on to other projects. Cheers, Russ Sweet 35 mk-1 At 08:24 AM 27/06/2017, you wrote: Content-Language: en-CA Content-Type: multipart/alternative; boundary="_000_BY2PR02MB458E0206231C27457085F24B1DC0BY2PR02MB458namprd_" Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Knowles at the club on the weekend so I'll definitely run it past him - thanks for mentioning that. I have the entire mast step "excavated" to the keel and am starting the rebuild. Can't wait for this one to be finished! Thanks! Greg 33 mk2 Halifax On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List <<mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com> wrote: I used a total of ýâ aluminum on mine when I rebuilt it. It lookks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: <https://www.paypal.me/stumurray>https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
I'm loving your input gentleman, I agree completely. I come from a construction background so plan on using a cement type of mortar used for anchoring large industrial equipment. Once fully cured it has a load rating of 8100 lbs/sq in, doesn't shrink and is unaffected by water. I was certain the loads wouldn't exceed that but wanted to make sure. My plan going forward once excavated was to pour 4-5 " of the mortar to level up the base and then fabricate a steel post with a bottom and top plate with a hole for the forward keel bolt to hold everything in place and then glass in the top. I was tempted to just fill the entire cavity with the mortar and move on but thought the compression post was a better plan.until I read what your father said. Maybe he's right, top it up and call it a day. The mortar I plan to use is called Sikagrout 212 but states that after 6" of depth you need an aggregate filler. Maybe something with less weight could be used to retain strength in the grout and filling the cavity would definitely be the way to go. Thought? Greg On Jun 28, 2017, at 7:35 AM, Dave S via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: Greg - agreed with Russ (and Joe.) When I did mine I briefly went down the calculation rabbit hole, looking at the properties of materials etc and I realized there was no way for me to calculate the hypothetical combined load of keel bolt torque, mast/rig, and one bolt's worth of bashing a rock at 4kts. My brain elected to look at the original construction and make it stronger (compression posts, epoxy, carbon fibre) and move on to other projects. I used glass and carbon fibre (recommended by the local composites purveyor) instead of AL as others have done, but, same idea. My dad (builder of many boats- now in NS) suggested concrete as fill and he was probably right. Dave -- Forwarded message -- From: "Russ & Melody" <russ...@telus.net<mailto:russ...@telus.net>> To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc: Bcc: Date: Tue, 27 Jun 2017 21:52:15 -0700 Subject: Re: Stus-List 33 mk2 Mast step loads Hi Dave, Watch those units. 4000 PSI on a 6" x 8" mast step plane is out of this world for a 33 foot boat. When I did the mast loading while designing the rig of my old 60' cruiser it was 100,000 lbs and he's telling you it's twice that?? I would go with Joe's suggestion of 1/2" aluminum plate and move on to other projects. Cheers, Russ Sweet 35 mk-1 At 08:24 AM 27/06/2017, you wrote: Content-Language: en-CA Content-Type: multipart/alternative; boundary="_000_BY2PR02MB458E0206231C27457085F24B1DC0BY2PR02MB458namprd_" Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Knowles at the club on the weekend so I'll definitely run it past him - thanks for mentioning that. I have the entire mast step "excavated" to the keel and am starting the rebuild. Can't wait for this one to be finished! Thanks! Greg 33 mk2 Halifax On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: I used a total of ½†aluminum on mine when I rebuilt it. It looks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Greg - agreed with Russ (and Joe.) When I did mine I briefly went down the calculation rabbit hole, looking at the properties of materials etc and I realized there was no way for me to calculate the hypothetical combined load of keel bolt torque, mast/rig, and one bolt's worth of bashing a rock at 4kts. My brain elected to look at the original construction and make it stronger (compression posts, epoxy, carbon fibre) and move on to other projects. I used glass and carbon fibre (recommended by the local composites purveyor) instead of AL as others have done, but, same idea. My dad (builder of many boats- now in NS) suggested concrete as fill and he was probably right. Dave -- Forwarded message -- From: "Russ & Melody" <russ...@telus.net> To: cnc-list@cnc-list.com Cc: Bcc: Date: Tue, 27 Jun 2017 21:52:15 -0700 Subject: Re: Stus-List 33 mk2 Mast step loads Hi Dave, Watch those units. 4000 PSI on a 6" x 8" mast step plane is out of this world for a 33 foot boat. When I did the mast loading while designing the rig of my old 60' cruiser it was 100,000 lbs and he's telling you it's twice that?? I would go with Joe's suggestion of 1/2" aluminum plate and move on to other projects. Cheers, Russ *Sweet *35 mk-1 At 08:24 AM 27/06/2017, you wrote: Content-Language: en-CA Content-Type: multipart/alternative; boundary="_000_BY2PR02MB458E0206231C27457085F 24B1DC0BY2PR02MB458namprd_" Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Knowles at the club on the weekend so I'll definitely run it past him - thanks for mentioning that. I have the entire mast step "excavated" to the keel and am starting the rebuild. Can't wait for this one to be finished! Thanks! Greg 33 mk2 Halifax On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List < cnc-list@cnc-list.com> wrote: I used a total of ½†aluminum on mine when I rebuilt it. It looks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Hi Dave, Watch those units. 4000 PSI on a 6" x 8" mast step plane is out of this world for a 33 foot boat. When I did the mast loading while designing the rig of my old 60' cruiser it was 100,000 lbs and he's telling you it's twice that?? I would go with Joe's suggestion of 1/2" aluminum plate and move on to other projects. Cheers, Russ Sweet 35 mk-1 At 08:24 AM 27/06/2017, you wrote: Content-Language: en-CA Content-Type: multipart/alternative; boundary="_000_BY2PR02MB458E0206231C27457085F24B1DC0BY2PR02MB458namprd_" Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Knowles at the club on the weekend so I'll definitely run it past him - thanks for mentioning that. I have the entire mast step "excavated" to the keel and am starting the rebuild. Can't wait for this one to be finished! Thanks! Greg 33 mk2 Halifax On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List <<mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com> wrote: I used a total of ½â aluminum on mine when I rebuilt it. It looks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I From: CnC-List [<mailto:cnc-list-boun...@cnc-list.com>mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Russ & Melody via CnC-List Sent: Monday, June 26, 2017 9:18 PM To: <mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com Cc: Russ & Melody <<mailto:russ...@telus.net>russ...@telus.net> Subject: Re: Stus-List 33 mk2 Mast step loads Hi Greg, You can research the righting moment, at say 30 - 33 degrees, for various boats in your size range for a second opinion. The 33-2 is similar in stability to my 35 mk-1(check diagram in the Technical Info on Stu's CNC site). I put the load at about 10,000 lbs, so building for 12 - 15,000 lbs is not a unreasonable. If you're going with aluminum only then I would spec it at 20,000 for a 50% corrosion allowance and say, "I expect this to last another 20 years." BTW, check with Rich Knowles on my credentials, if in doubt. :) Hi Rich, we miss you on the Left Coast. Cheers, Russ Sweet 35 mk-1 At 03:15 AM 26/06/2017, you wrote: Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: <https://www.paypal.me/stumurray>https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: <https://www.paypal.me/stumurray>https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Have been thinking about your post Greg. Remember, the 33-2 mast step is not only compressed by the mast, it also bears the compression load of one of the four large keel bolts. Don't only think of the rig Fellow lister Doug A quite wisely convinced me to install compression posts when I rebuilt my keel, and the pro repair by Bristol marine here in Toronto does the same. Dave. Sent from my iPad > On Jun 27, 2017, at 1:59 PM, Hoyt, Mike <mike.h...@impgroup.com> wrote: > > Don’t fill in the hole. Use it for beer storage! > > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Greg > Sutherland via CnC-List > Sent: Tuesday, June 27, 2017 12:24 PM > To: cnc-list@cnc-list.com > Cc: Greg Sutherland > Subject: Re: Stus-List 33 mk2 Mast step loads > > Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday > and he's certain that he would have installed my original mast in '87. He > figures even when falling into a wave with full sails the forces wouldn't > exceed 4000 psi. Seems light to me but who am I to argue with him. > I thought I notice Mr. Knowles at the club on the weekend so I'll definitely > run it past him - thanks for mentioning that. > > I have the entire mast step "excavated" to the keel and am starting the > rebuild. Can't wait for this one to be finished! > > Thanks! > Greg > 33 mk2 > Halifax > > On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List > <cnc-list@cnc-list.com> wrote: > > I used a total of ½” aluminum on mine when I rebuilt it. It looks about 20 > times stronger than the original was too. > > Joe > Coquina > CC 35 MK I > > > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Russ & > Melody via CnC-List > Sent: Monday, June 26, 2017 9:18 PM > To: cnc-list@cnc-list.com > Cc: Russ & Melody <russ...@telus.net> > Subject: Re: Stus-List 33 mk2 Mast step loads > > > Hi Greg, > > You can research the righting moment, at say 30 - 33 degrees, for various > boats in your size range for a second opinion. The 33-2 is similar in > stability to my 35 mk-1(check diagram in the Technical Info on Stu's CNC > site). > > I put the load at about 10,000 lbs, so building for 12 - 15,000 lbs is not a > unreasonable. If you're going with aluminum only then I would spec it at > 20,000 for a 50% corrosion allowance and say, "I expect this to last another > 20 years." > > BTW, check with Rich Knowles on my credentials, if in doubt. :) > > Hi Rich, we miss you on the Left Coast. > > Cheers, Russ > Sweet 35 mk-1 > > At 03:15 AM 26/06/2017, you wrote: > > > Does anyone know what the maximum load would be on the mast step of the 33? > I'm trying to figure out the psi force for a rebuild > Thanks! > > Greg > 33-2 > Halifax > ___ > > This list is supported by the generous donations of our members. If you wish > to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > ___ > > This list is supported by the generous donations of our members. If you wish > to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Impressive work documenting your jobs Randy and Dave, thanks for sharing. Mine is the same as Dave's and I'm close to rebuilding now. Dave I may contact you off list for some questions as I continue if that's okay. Greg On Jun 27, 2017, at 1:12 PM, RANDY <randy.staff...@comcast.net<mailto:randy.staff...@comcast.net>> wrote: Greg I don't know if you've already seen my write-up of my mast step rebuild project on my 30-1 this spring, but in case it's of any help to you, here it is: https://drive.google.com/open?id=0B-NqAxQ6JxFTUlhmbUs4YTZlZnM Cheers, Randy Stafford S/V Grenadine C 30-1 #7 Ken Caryl, CO From: "Greg Sutherland via CnC-List" <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> To: "cnc-list" <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> Cc: "Greg Sutherland" <bluenosesail...@hotmail.com<mailto:bluenosesail...@hotmail.com>> Sent: Tuesday, June 27, 2017 9:24:27 AM Subject: Re: Stus-List 33 mk2 Mast step loads Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Knowles at the club on the weekend so I'll definitely run it past him - thanks for mentioning that. I have the entire mast step "excavated" to the keel and am starting the rebuild. Can't wait for this one to be finished! Thanks! Greg 33 mk2 Halifax On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: I used a total of ½” aluminum on mine when I rebuilt it. It looks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Russ & Melody via CnC-List Sent: Monday, June 26, 2017 9:18 PM To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc: Russ & Melody <russ...@telus.net<mailto:russ...@telus.net>> Subject: Re: Stus-List 33 mk2 Mast step loads Hi Greg, You can research the righting moment, at say 30 - 33 degrees, for various boats in your size range for a second opinion. The 33-2 is similar in stability to my 35 mk-1(check diagram in the Technical Info on Stu's CNC site). I put the load at about 10,000 lbs, so building for 12 - 15,000 lbs is not a unreasonable. If you're going with aluminum only then I would spec it at 20,000 for a 50% corrosion allowance and say, "I expect this to last another 20 years." BTW, check with Rich Knowles on my credentials, if in doubt. :) Hi Rich, we miss you on the Left Coast. Cheers, Russ Sweet 35 mk-1 At 03:15 AM 26/06/2017, you wrote: Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Hi Greg, My excavation documented here: http://cncwindstar.blogspot.ca/p/c-33-mk-ii-keel-and-mast-step-work.html Keep the faith, it does end. Dave Windstar - 33-2 - Forwarded message -- From: Greg Sutherland <bluenosesail...@hotmail.com> To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com> Cc: Bcc: Date: Tue, 27 Jun 2017 15:24:27 +0000 Subject: Re: Stus-List 33 mk2 Mast step loads Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Knowles at the club on the weekend so I'll definitely run it past him - thanks for mentioning that. I have the entire mast step "excavated" to the keel and am starting the rebuild. Can't wait for this one to be finished! Thanks! Greg 33 mk2 Halifax On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List < cnc-list@cnc-list.com> wrote: I used a total of ½” aluminum on mine when I rebuilt it. It looks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com <cnc-list-boun...@cnc-list.com>] *On Behalf Of *Russ & Melody via CnC-List *Sent:* Monday, June 26, 2017 9:18 PM *To:* cnc-list@cnc-list.com *Cc:* Russ & Melody <russ...@telus.net> *Subject:* Re: Stus-List 33 mk2 Mast step loads Hi Greg, You can research the righting moment, at say 30 - 33 degrees, for various boats in your size range for a second opinion. The 33-2 is similar in stability to my 35 mk-1(check diagram in the Technical Info on Stu's CNC site). I put the load at about 10,000 lbs, so building for 12 - 15,000 lbs is not a unreasonable. If you're going with aluminum only then I would spec it at 20,000 for a 50% corrosion allowance and say, "I expect this to last another 20 years." BTW, check with Rich Knowles on my credentials, if in doubt. :) Hi Rich, we miss you on the Left Coast. Cheers, Russ *Sweet *35 mk-1 At 03:15 AM 26/06/2017, you wrote: Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Don’t fill in the hole. Use it for beer storage! From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Greg Sutherland via CnC-List Sent: Tuesday, June 27, 2017 12:24 PM To: cnc-list@cnc-list.com Cc: Greg Sutherland Subject: Re: Stus-List 33 mk2 Mast step loads Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Knowles at the club on the weekend so I'll definitely run it past him - thanks for mentioning that. I have the entire mast step "excavated" to the keel and am starting the rebuild. Can't wait for this one to be finished! Thanks! Greg 33 mk2 Halifax On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: I used a total of ½” aluminum on mine when I rebuilt it. It looks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Russ & Melody via CnC-List Sent: Monday, June 26, 2017 9:18 PM To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc: Russ & Melody <russ...@telus.net<mailto:russ...@telus.net>> Subject: Re: Stus-List 33 mk2 Mast step loads Hi Greg, You can research the righting moment, at say 30 - 33 degrees, for various boats in your size range for a second opinion. The 33-2 is similar in stability to my 35 mk-1(check diagram in the Technical Info on Stu's CNC site). I put the load at about 10,000 lbs, so building for 12 - 15,000 lbs is not a unreasonable. If you're going with aluminum only then I would spec it at 20,000 for a 50% corrosion allowance and say, "I expect this to last another 20 years." BTW, check with Rich Knowles on my credentials, if in doubt. :) Hi Rich, we miss you on the Left Coast. Cheers, Russ Sweet 35 mk-1 At 03:15 AM 26/06/2017, you wrote: Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Greg I don't know if you've already seen my write-up of my mast step rebuild project on my 30-1 this spring, but in case it's of any help to you, here it is: https://drive.google.com/open?id=0B-NqAxQ6JxFTUlhmbUs4YTZlZnM Cheers, Randy Stafford S/V Grenadine C 30-1 #7 Ken Caryl, CO - Original Message - From: "Greg Sutherland via CnC-List" <cnc-list@cnc-list.com> To: "cnc-list" <cnc-list@cnc-list.com> Cc: "Greg Sutherland" <bluenosesail...@hotmail.com> Sent: Tuesday, June 27, 2017 9:24:27 AM Subject: Re: Stus-List 33 mk2 Mast step loads Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Knowles at the club on the weekend so I'll definitely run it past him - thanks for mentioning that. I have the entire mast step "excavated" to the keel and am starting the rebuild. Can't wait for this one to be finished! Thanks! Greg 33 mk2 Halifax On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List < cnc-list@cnc-list.com > wrote: I used a total of ½” aluminum on mine when I rebuilt it. It looks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I From: CnC-List [ mailto:cnc-list-boun...@cnc-list.com ] On Behalf Of Russ & Melody via CnC-List Sent: Monday, June 26, 2017 9:18 PM To: cnc-list@cnc-list.com Cc: Russ & Melody < russ...@telus.net > Subject: Re: Stus-List 33 mk2 Mast step loads Hi Greg, You can research the righting moment, at say 30 - 33 degrees, for various boats in your size range for a second opinion. The 33-2 is similar in stability to my 35 mk-1(check diagram in the Technical Info on Stu's CNC site). I put the load at about 10,000 lbs, so building for 12 - 15,000 lbs is not a unreasonable. If you're going with aluminum only then I would spec it at 20,000 for a 50% corrosion allowance and say, "I expect this to last another 20 years." BTW, check with Rich Knowles on my credentials, if in doubt. :) Hi Rich, we miss you on the Left Coast. Cheers, Russ Sweet 35 mk-1 At 03:15 AM 26/06/2017, you wrote: Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Thanks everyone for the info. I spoke with Danny from Klacko spars yesterday and he's certain that he would have installed my original mast in '87. He figures even when falling into a wave with full sails the forces wouldn't exceed 4000 psi. Seems light to me but who am I to argue with him. I thought I notice Mr. Knowles at the club on the weekend so I'll definitely run it past him - thanks for mentioning that. I have the entire mast step "excavated" to the keel and am starting the rebuild. Can't wait for this one to be finished! Thanks! Greg 33 mk2 Halifax On Jun 27, 2017, at 10:52 AM, Della Barba, Joe via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: I used a total of ½” aluminum on mine when I rebuilt it. It looks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Russ & Melody via CnC-List Sent: Monday, June 26, 2017 9:18 PM To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc: Russ & Melody <russ...@telus.net<mailto:russ...@telus.net>> Subject: Re: Stus-List 33 mk2 Mast step loads Hi Greg, You can research the righting moment, at say 30 - 33 degrees, for various boats in your size range for a second opinion. The 33-2 is similar in stability to my 35 mk-1(check diagram in the Technical Info on Stu's CNC site). I put the load at about 10,000 lbs, so building for 12 - 15,000 lbs is not a unreasonable. If you're going with aluminum only then I would spec it at 20,000 for a 50% corrosion allowance and say, "I expect this to last another 20 years." BTW, check with Rich Knowles on my credentials, if in doubt. :) Hi Rich, we miss you on the Left Coast. Cheers, Russ Sweet 35 mk-1 At 03:15 AM 26/06/2017, you wrote: Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
I used a total of ½" aluminum on mine when I rebuilt it. It looks about 20 times stronger than the original was too. Joe Coquina CC 35 MK I From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Russ & Melody via CnC-List Sent: Monday, June 26, 2017 9:18 PM To: cnc-list@cnc-list.com Cc: Russ & Melody <russ...@telus.net> Subject: Re: Stus-List 33 mk2 Mast step loads Hi Greg, You can research the righting moment, at say 30 - 33 degrees, for various boats in your size range for a second opinion. The 33-2 is similar in stability to my 35 mk-1(check diagram in the Technical Info on Stu's CNC site). I put the load at about 10,000 lbs, so building for 12 - 15,000 lbs is not a unreasonable. If you're going with aluminum only then I would spec it at 20,000 for a 50% corrosion allowance and say, "I expect this to last another 20 years." BTW, check with Rich Knowles on my credentials, if in doubt. :) Hi Rich, we miss you on the Left Coast. Cheers, Russ Sweet 35 mk-1 At 03:15 AM 26/06/2017, you wrote: Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Hi Greg, You can research the righting moment, at say 30 - 33 degrees, for various boats in your size range for a second opinion. The 33-2 is similar in stability to my 35 mk-1(check diagram in the Technical Info on Stu's CNC site). I put the load at about 10,000 lbs, so building for 12 - 15,000 lbs is not a unreasonable. If you're going with aluminum only then I would spec it at 20,000 for a 50% corrosion allowance and say, "I expect this to last another 20 years." BTW, check with Rich Knowles on my credentials, if in doubt. :) Hi Rich, we miss you on the Left Coast. Cheers, Russ Sweet 35 mk-1 At 03:15 AM 26/06/2017, you wrote: Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
Selden Mast Tuning manual (http://www.seldenmast.com/files/1416926327/595-540-E.pdf (p.31)) says that the shrouds should be set to 15%-20% of the breaking load. Keep in mind that you have at least 4 shrouds plus the stay and the backstay. The letter two are at less acute angle, so the force is reduced (by the cosine of the angle (the force is reduced for the shrouds, as well, but the reduction is around 2%, so who cares)). Marek From: Dennis C. via CnC-List Sent: Monday, June 26, 2017 09:55 To: CnClist Cc: Dennis C. Subject: Re: Stus-List 33 mk2 Mast step loads What's the breaking strength of the upper shrouds? I'd think 50% of that would be conservative. Dennis C. On Mon, Jun 26, 2017 at 5:15 AM, Greg Sutherland via CnC-List <cnc-list@cnc-list.com> wrote: Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List 33 mk2 Mast step loads
What's the breaking strength of the upper shrouds? I'd think 50% of that would be conservative. Dennis C. On Mon, Jun 26, 2017 at 5:15 AM, Greg Sutherland via CnC-List < cnc-list@cnc-list.com> wrote: > Does anyone know what the maximum load would be on the mast step of the > 33? I'm trying to figure out the psi force for a rebuild > Thanks! > > Greg > 33-2 > Halifax > ___ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Stus-List 33 mk2 Mast step loads
Does anyone know what the maximum load would be on the mast step of the 33? I'm trying to figure out the psi force for a rebuild Thanks! Greg 33-2 Halifax ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
