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R.I.P. 490 cm mast / Self-Rescue / Ezzy 9.5 on 520?
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nw30



Joined: 21 Dec 2008
Posts: 6485
Location: The eye of the universe, Cen. Cal. coast

PostPosted: Sat Jun 29, 2013 12:22 pm    Post subject: Reply with quote

In addressing the part about the boomhead clamping onto the mast, this is what I always do to keep that connection both snug enough to prevent slippage w/o being too hard on the mast.
I use booms that are designed to go onto a SDM or a RDM by choice, and I only use RDMs, and this is why.
I remove the factory shim w/in the clamp head, and then use one of those thick rubber converter shims that wrap almost all the way around the mast, then I put on the boom w/o the factory shim. You get a much better connection between the boom and mast w/o any pressure points or sloppyiness. Sometimes the older way of doing things are the best, your mast will love you for it.
The only hitch, it requires a boom head with a removable convertable shim, many are still made that way.
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d0uglass



Joined: 28 May 2004
Posts: 1286
Location: Bonita Springs, Florida

PostPosted: Sat Jun 29, 2013 3:12 pm    Post subject: Reply with quote

I couldn't bear to miss a good seabreeze weekend waiting for a mast to ship, so I picked up an older used Fiberspar SDM 490 at Ace Performer in Ft. Myers this afternoon.

Seabreeze looks good now. I'll see how the sail rigs.

PS- Here's a video I made of the session that broke the mast. It includes the self-rescue part:

http://jimbodouglass.blogspot.com/2013/06/busted-mast-self-rescue.html

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U2U2U2



Joined: 06 Jul 2001
Posts: 5467
Location: Shipsterns Bluff, Tasmania. Colorado

PostPosted: Sat Jun 29, 2013 4:58 pm    Post subject: Reply with quote

Thanks, enjoyed the video

if it were me, it be bleeped out the entire derigging/ rescue sequence

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manuel



Joined: 08 Oct 2007
Posts: 1158

PostPosted: Sat Jun 29, 2013 11:53 pm    Post subject: Reply with quote

Did you try using the top part of the mast upside down inside the broken bottom piece to make enough of a sail?
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capetonian



Joined: 11 Aug 2006
Posts: 1196
Location: Florida

PostPosted: Sun Jun 30, 2013 1:11 am    Post subject: Reply with quote

Glad you found a replacement so quickly. If there is a next time, buy the Ezzy RDM. Gear has improved so much now that fears about RDM masts in big cammed sails are no longer valid. Anyone less than PWA standard would be hard pressed to notice the difference in performance between a large race sail designed for an RDM and a large race sail designed for an SDM. For reference I weigh 195 lb and use a 490 RDM mast in a 4 cam 8.8 race sail.
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