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inside lashing on alloy beam

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Comment by boatsmith on February 16, 2013 at 8:41am

I would be very concerned about chafe. Ideally there would be a web right behind the lashing.  I don't see anything "keying" the beam to the hull? There appear to be 5 loops, that's about right but the frapping imo is inadequate. It would be next to impossible to get this lashing as tight as I like them. I like to use spectra( Dynex Dux) for the frapping strakes. I spray the entire lashing with dishsoap/water and take the tail of the frapping to another beam via a 6-1 handy billy.(block and tackle) and two of us whale on it. We would bend the top flange on your beam as pictured. We don't replace lashings from chafe but from UV and foot traffic. 

Comment by boatsmith on February 17, 2013 at 2:27pm

I see the "keying" in your next photo. That looks good. You do have stiffening webs on the sides but they don't appear to be lined up with the lashings. That would be better. How does your lashing go over the top of the beam?





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