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Old 04-10-2011, 22:07   #1
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Challenge: Test (with Reward)

challenge: name 1 reason why it is NOT a good idea to set your mast base in concrete.

reward: person who gives me the best answer will receive 1/2 a mast base from a yorktown 39.
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Old 04-10-2011, 22:15   #2
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re: Challenge: Test (with Reward)

The lime in concrete will eat away aluminum...
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Old 04-10-2011, 22:17   #3
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re: Challenge: Test (with Reward)

OhOhOhOh I know I know!!!

But I ain't saying 'cause I don't want that gnarly thang!

THAT is seriously ugly!
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Old 04-10-2011, 22:24   #4
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re: Challenge: Test (with Reward)

that looks like his compression posts. most of his masts were deck stepped, and le fiell products.

still waaay foogly.....
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Old 04-10-2011, 22:31   #5
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Cant pull the rig with out cutting the mast
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Old 04-10-2011, 22:35   #6
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re: Challenge: Test (with Reward)

Rawson 30's set their mast bulkheads in the concrete ballast too...same problem. I had to laugh when someone on the Rawson forum called the builder a "Sage".
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Old 04-10-2011, 22:55   #7
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re: Challenge: Test (with Reward)

i know, right?

while i was pretty surprised to realize how much water wood can wick out of concrete, i was not at all surprised to see what 30 years of water damage can do to a compression post.

-steve
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Old 04-10-2011, 23:28   #8
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re: Challenge: Test (with Reward)

This post is a lot of old rot..........Right?
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Old 04-10-2011, 23:30   #9
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re: Challenge: Test (with Reward)

Quote:
Originally Posted by ssanzone View Post
challenge: name 1 reason why it is NOT a good idea to set your mast base in concrete.

reward: person who gives me the best answer will receive 1/2 a mast base from a yorktown 39.
Do you just want opinions, or are you looking for concrete evidence.
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Old 13-10-2011, 14:08   #10
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Re: Challenge: Test (with Reward)

You should have the Interior scanned with a thermal imager and also checked with a moisture meter as this could be the begining of a refit
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Old 16-10-2011, 14:23   #11
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Re: Challenge: Test (with Reward)

The lime in concrete attacks the lignon which is the stuff that binds wood cells together. It desolves it and leaves a mass of seperate fibres which have no strength.

I found this problem with a 32 wooden cutter I bought back in the 80s. The only external sign was a sprung garboard strake on one side. (no I didn't get it surveyed, it was back in my young and stupid days) Apparently the owner filled the bilge area with scrap steel and sealed it in with cement or concrete.

Once I got possession, I spent a week with a couple of buddies chiseling out the mess, and once done found the entire top of the keel disolved to a depth of a couple of inches. The floors, Oak sided 3 inches thick were also almost completely disolved as were the botton 10 inches of 32 consecutive pairs of ribs.

Needless to say I started to try and repair it, this is where I developed a love affair with west system. After saturating the floors I took one up to Cold Creek to the rifle range and tried to shoot some .303 slugs through them. No success. The ribs I cut off and replace the damaged bits with stubs, and a 3foot long cap strip of 1x1/8 stainless steel. Sadly I lost my job and that boat shortly there after. I guess the old lady who owned it just let it rot away.
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