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Search: Posts Made By: Brent Swain
Forum: Sailboat Design and Construction   21 Hours Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

I did some work on a Rev D'Antiles 38 footer a few years back. The 2 inch wide by around 12 inches long skeg was welded to the 1/8th inch hull plate,with very little inside to back it up. It was...
Forum: Sailboat Design and Construction   22 Hours Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

Picture an anchor rode going betwen these keels and looping over the bulb. Picture a strong wind making it impossible to get it off. Picture yourself dragging towards lee shore, beam on to a strong...
Forum: Sailboat Design and Construction   22 Hours Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

One of the reasons for such poor performance in some twin keelers was they didnt take advanatage of the lee keel being able to be upright when the boat is heeled 25 degrees. That increases its...
Forum: Gear & Maintenance   23 Hours Ago
Replies: 19
Views: 872
Posted By Brent Swain
Re: Time for a new exhaust elbow

I have found the ultimate in exhaust reliability is a dry exhaust, which I have been using for over 40 years. On Metalboatsociety.org a mechanic in Port Townshend was quoted as saying "If everyone...
Forum: Sailboat Design and Construction   1 Day Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

[QUOTE=Jeff_H;2993618]I hate citing a single anecdote and trying to consider it universally true, but back in the late 1960's, I taught sailing at a sailing school in Miami. They had a fleet of...
Forum: Gear & Maintenance   1 Day Ago
Replies: 19
Views: 872
Posted By Brent Swain
Re: Time for a new exhaust elbow

At $1.50 a pound for stainless, you must be extremely poor to not be able to afford stainless. How much a pound did your cast iron one cost you?
I read about a Canadian Yacht off the great barrier...
Forum: Sailboat Design and Construction   2 Days Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

Every day as I walk up the hill to this coffee shop, I pass this portrait of my three main critics on this site.
Forum: Sailboat Design and Construction   2 Days Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

This is what Mike calls "A slight curve." Man that's whacko!
He says it might "spring thru the other way". Man that's even whackier!
What you smokin man?
Forum: Gear & Maintenance   2 Days Ago
Replies: 19
Views: 872
Posted By Brent Swain
Re: Time for a new exhaust elbow

My posts are based on over 40 years of mostly full time cruising experience. Friends who got all their advice from Yanmar, had problems which I could have helped them avoid.
Forum: Gear & Maintenance   2 Days Ago
Replies: 19
Views: 872
Posted By Brent Swain
Re: Time for a new exhaust elbow

Stainless tends to remain perfect , right up to the point where you inject the water. From there on it corrodes like hell. You could make that part out of easily replaceable mild steel. If you can...
Forum: Gear & Maintenance   4 Days Ago
Replies: 28
Views: 1,328
Posted By Brent Swain
Re: Companionway bars

Aluminium hatches which can be locked from inside, are a far greater deterrent. Far better than teak . It takes some serious power tools to get thru mine. They are also far more seaworthy.I have a...
Forum: Sailboat Design and Construction   4 Days Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

The wider the range of input, the greater the rate of progress, in any field.
Forum: Sailboat Design and Construction   4 Days Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

The friend I borrowed the compressor from started out with store bought blasting abrasive . When they ran out, they switched to beach sand, which they said worked far better.
For inside blasting,...
Forum: Sailboat Design and Construction   4 Days Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

Claiming it is immoral to learn from tragedy is an irresponsible way to get even more people killed.
Steel boats have survived collisions with freighters ,including one of mine. Plastic boats...
Forum: Sailboat Design and Construction   5 Days Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

Used plastic boats are a dime a dozen, altho the supply seems to be declining a lot lately. Many of my clients had them, and decided to upgrade to steel, which they have never regretted. Not so many...
Forum: Sailboat Design and Construction   5 Days Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

The time of the year is fast approaching when the cityachts ( cidiots?) all go home, and leave the anchorages free for the full time cruisers.
The further off the beaten path you get, the greater...
Forum: Sailboat Design and Construction   5 Days Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

I just thought of another demonstration of how shape drastically increases strength .
Some 20 lb propane bottles have concave bottoms, as do sand blasting pot tops.. Propane , in hot weather, ...
Forum: Sailboat Design and Construction   5 Days Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

Just posted this on metalboatsociety.org ,a great site for steel boat info.

I just borrowed a compressor with a 5HP gas driven motor, to touch up rust dings with beach sand. I'll never go back to...
Forum: Boat Review and Purchase Forum   1 Week Ago
Replies: 23
Views: 952
Posted By Brent Swain
Re: Thoughts on going from sailboat to motorboat?

Ask power boaters about their fuel costs..
Forum: Sailboat Design and Construction   1 Week Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

The propane bottle was simply a demonstration of the huge increase in stiffness which shape can give one.
A deck acts ,structurally, as a bulkhead, regardless of whether you decide to call it one...
Forum: Sailboat Design and Construction   1 Week Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

What evidence to the contrary do you have?
Forum: Sailboat Design and Construction   1 Week Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

99% of my hulls which are pulled together are completed, largely due to the fact that they come together so easily, compared to other methods, leaving the owner a reserve of energy, money, time and...
Forum: Gear & Maintenance   1 Week Ago
Replies: 19
Views: 872
Posted By Brent Swain
Re: Time for a new exhaust elbow

I started out with a mild steel one, but being under the companion way, it rusted more from the outside than inside. So I copied it in stainless.

With scrap stainless being under $2 a pound in...
Forum: Sailboat Design and Construction   1 Week Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

Most have sold for far more than the cost to build, some for many times that . A Waterline sells for a fraction the new cost.
Forum: Sailboat Design and Construction   1 Week Ago
Replies: 1,117
Views: 50,826
Posted By Brent Swain
Re: Steel vs Fiberglass

Stand on a propane bottle, 12 inches diameter, about 18 inches half circumference , roughly 16 gauge. Try to get it to "spring thru". Now put a flat piece of 16 gauge between two supports and stand...
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