Tyler- All the M 15's that I made had a mast length of 19.5'. Don't know about the Eeg boats. ________________________________ From: casioqv@usermail.com <casioqv@usermail.com> Sent: Thursday, April 21, 2022 4:43 PM To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Cc: john <john@eco-living.net> Subject: M_Boats: Re: M15 Stay and Shroud lengths I wouldn't worry about rigging length specs for an older sailboat... things get changed around a lot and there were even different length masts used on different M15s. The only measurement that matters is the current rigging length. 1) If the boat sails properly (slight weather helm) adjust the new rigging so it's centered on the turnbuckle/stay adjuster at the current setting, even if it's at the end of the range with the old rigging. 2) Make sure both left and right rear stays are exactly identical in length even if they aren't with the old rigging. Taking care of 1&2 corrects for the cumulative error that occurs when people re-rig a boat repeatedly by measuring the old stay lengths and trying to copy them. Sincerely, Tyler ----- Original Message ----- From: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Cc: "john" <john@eco-living.net> Sent: Thursday, April 21, 2022 12:59:04 PM Subject: M_Boats: Re: M15 Stay and Shroud lengths One comment on using the lengths you have - per Dave's comment about mast rake, check yours with current stays & shrouds, and adjust new lengths if/as necessary. My M17 came with a forestay that was a bit short (and thus a backstay that was a bit long). No idea why. The shrouds & stays it came with, I think, were not the OEM ones. It came with all nicopress and thimbles at both ends. I think the seller told me it had been re-rigged, maybe even by the previous owner to them. Anyhow - I didn't really think about mast rake until I saw some posts here about it, and also was needing a new forestay, as I was adding a jib furler. So I checked, and I had almost negative rake, the way it was when I bought it. It sailed OK anyhow, but I wouldn't have known there was better performance available then. I adjusted the lengths when ordering the new forestay and backstay, to give appropriate range of rake. You've only got a forestay to worry about, and the shrouds possibly if the rake makes that much difference in shroud length? It doesn't on the M17, plenty of range in the turnbuckles, may be different on an M15. cheers, John On 4/21/22 12:10, Dave Scobie wrote:
Roger.
I've looked at all my flash and hard drives. Can't find the document with the M15 shrouds details.
I do remember that the early boats have shrouds and forestay of equal lengths. Jerry stopped doing this as folks would set the mast straight so without enough rake (need at least 3-4"). He then built the boats with the forestay a bit longer and the shrouds a bit shorter 'to encourage the correct rake'.
IMO unless the current rigging seems as if it was incorrect just duplicate what you have.
:: Dave Scobie :: M6'8" #650 :: Baba 30 #233 DEJA VU :: SV SWALLOW - sv-swallow.com :: former owner M17 #375 SWEET PEA - m17-375.com :: former owner M15 #288 SCRED - m15namedscred.wordpress.com <<-- new site!
On Fri, Apr 15, 2022, 11:51 AM Roger Langmaid <rogeregon@gmail.com> wrote:
Thanks Dave
Roger
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Original Message
From: scoobscobie@gmail.com Sent: April 15, 2022 7:37 AM To: montgomery_boats@mailman.xmission.com Reply to: montgomery_boats@mailman.xmission.com Subject: M_Boats: Re: M15 Stay and Shroud lengths
Roger:
Do you think the existing shrouds are the incorrect length?
I have, someplace, a pdf that shows the rigging specs. Can't find it but I'll keep looking.
:: Dave Scobie :: M6'8" #650 :: Baba 30 #233 DEJA VU :: SV SWALLOW - sv-swallow.com :: former owner M17 #375 SWEET PEA - m17-375.com :: former owner M15 #288 SCRED - m15namedscred.wordpress.com <<-- new site!
On Thu, Apr 14, 2022, 3:46 PM Roger Langmaid <rogeregon@gmail.com> wrote:
Could anyone help me with standard eye to eye lengths for the M15 mast stay and shrouds ? I need to replace one damaged shroud and think I will order a set, I will of course also measure the existing rigging too but just to confirm
thank you
Alula - M15 Lund B.C. Canada
Roger Langmaid
-- John Schinnerer - M.A., Whole Systems Design -------------------------------------------- - Eco-Living - Whole Systems Design Services People - Place - Learning - Integration john@eco-living.net - 510.982.1334 http://eco-living.net http://sociocracyconsulting.com