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Showing results 1 to 20 of 20
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Search: Posts Made By: Foxy
Forum: Boat Review and Purchase Forum 12-29-2013
Replies: 11
Views: 1,686
Posted By Foxy
Re: O'Day 302

I've seen several early 302's and 322's with severe creases in the topsides from the chainplate shelf pulling inboard when the shrouds are under tension. I sailed on one where you could see the hull...
Forum: General Discussion (sailing related) 12-24-2013
Replies: 87
Views: 3,195
Posted By Foxy
Re: TITANIUM Keel Bolts in cast iron?

You know it is funny how some people expect boats to last forever with the original equipment in a very corrosive environment. Cars and bridges require maintenance. Aircraft have very rigid...
Forum: General Discussion (sailing related) 12-24-2013
Replies: 87
Views: 3,195
Posted By Foxy
Re: TITANIUM Keel Bolts in cast iron?

Christian,

Good luck with your leak.

A lead keel would likely have J-bolts, but in a cast iron keel, the bolts would most likely be drilled and tapped. Lead is a fairly low temperature casting...
Forum: General Discussion (sailing related) 12-24-2013
Replies: 87
Views: 3,195
Posted By Foxy
Re: TITANIUM Keel Bolts in cast iron?

One note here. If your bolts have threads through the fiberglass, there is a possibility that the lingering water could cause or accelerate crevice corrosion. It would be far safer to haul the boat,...
Forum: General Discussion (sailing related) 12-24-2013
Replies: 87
Views: 3,195
Posted By Foxy
Re: TITANIUM Keel Bolts in cast iron?

I use both the ISO 12215 scantling rule and FEA in my office for critical structures like keels, rudders, and chainplates. Ten years ago FEA was cost prohibitive, but not any more. The software is...
Forum: General Discussion (sailing related) 12-23-2013
Replies: 87
Views: 3,195
Posted By Foxy
Re: TITANIUM Keel Bolts in cast iron?

If we relied totally on historical scantlings, we might be back to Nevin's which allowed only bronze bolts at 1 in^2 per 1500 lbs of ballast. Very safe and worked well for the keel designs of that...
Forum: General Discussion (sailing related) 12-22-2013
Replies: 87
Views: 3,195
Posted By Foxy
Re: TITANIUM Keel Bolts in cast iron?

Bob,

Of course stress on the bottom is a factor, you have to satisfy all parts of the scantling rules, but we were only discussing bolt stress. You can have more smaller bolts or fewer larger ones...
Forum: General Discussion (sailing related) 12-22-2013
Replies: 87
Views: 3,195
Posted By Foxy
Re: TITANIUM Keel Bolts in cast iron?

Safety Factor is not a meaningful term unless you know what the forces are and the limits of the materials you are using. If you are simply using the weight of the keel and applying a SF in your...
Forum: General Discussion (sailing related) 12-21-2013
Replies: 40
Views: 2,090
Posted By Foxy
Re: Survey say's.......

PCP,
Thermography and radiography are used a lot now to diagnose the extent of problems that used to require digging in with a hole saw or grinder. It works in some situations but not all....
Forum: General Discussion (sailing related) 12-21-2013
Replies: 40
Views: 2,090
Posted By Foxy
Re: Survey say's.......

Dog Ship,

I am not a surveyor, but I never ask for final payment until my services are rendered and the client is satisfied with what he received. In the case of a damaged boat, that would usually...
Forum: General Discussion (sailing related) 12-21-2013
Replies: 40
Views: 2,090
Posted By Foxy
Re: Survey say's.......

I'm a marine engineer with 40 years experience and I kind of have to agree with boatpoker. There are however some very good surveyors out there that I have a lot of respect for. If I were going to...
Forum: General Discussion (sailing related) 12-21-2013
Replies: 87
Views: 3,195
Posted By Foxy
Re: TITANIUM Keel Bolts in cast iron?

If your original bolts were steel, then 316 SS would probably not be as strong although they would be more corrosion resistant. Without knowing the parameters of the keel, I could not tell you what...
Forum: Cal 11-30-2013
Replies: 8
Views: 1,602
Posted By Foxy
Re: Buying a Cal 33 - Good boat?

I think either version were good boats. The Hunt design 33 was my engineering project to put into production, so I'm more familiar with it. There are two of them in Melbourne FL, both owned by...
Forum: Racing 11-19-2013
Replies: 12
Views: 811
Posted By Foxy
Re: Scoring races, how is it worked out?

Not true, they use a fish!
Forum: Racing 11-14-2013
Replies: 12
Views: 811
Posted By Foxy
Re: Scoring races, how is it worked out?

And you probably do all math with a calculator and blame all errors on it instead of the guy entering the figures.

I like SailWave myself. It scores any handicapping system there is and you can...
Forum: Racing 11-13-2013
Replies: 12
Views: 811
Posted By Foxy
Re: Scoring races, how is it worked out?

From RRS Appendix A

A8 SERIES TIES
A8.1 If there is a series-score tie between two or more boats, each boatís
race scores shall be listed in order of best to worst, and at the first
point(s)...
Forum: General Discussion (sailing related) 10-27-2013
Replies: 26
Views: 3,534
Posted By Foxy
Re: 2 stroke inboard

I think having an oil/gas mix in the fuel tank for long periods of time might be problematic and face it, fuel tanks on sailboats are not filled often. Aside from the oil turning into varnish, we now...
Forum: General Discussion (sailing related) 10-13-2013
Replies: 134
Views: 6,353
Posted By Foxy
Re: Would you rather own a sailboat or a RV?

Buy a towable RV and cartop a small sailboat.
Forum: General Discussion (sailing related) 09-29-2013
Replies: 16
Views: 1,370
Posted By Foxy
Re: Lightnings vs Scots vs Snark vs Sunfish

Hope that you don't mind that I brought this from PM to the main thread. When I tried to respond, I got a message that I didn't have enough posts to send private messages. Go figure!

The sailing...
Forum: General Discussion (sailing related) 09-26-2013
Replies: 16
Views: 1,370
Posted By Foxy
Re: Lightnings vs Scots vs Snark vs Sunfish

We have a fleet of Flying Scott's owned by the sailing center I belong to. Mostly they are used for sailing lessons and recreational sailing by the members. They are very forgiving boats and very...
Showing results 1 to 20 of 20

 

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