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View Full Version : Experienced woodheads, explain this one.??

On Vacation
10-31-2002, 12:52 PM
This is a plank out of an Egg Harbor 48 wooden hull. It is Mahogany screwed with Bronze screws. This was the garboard plank. It does not have the appearance of electrolysis. The plank is eaten away in a cupped design but still solid wood in the cupped area except for where the wood and screws hit the saddle butts across the keel. That area is the original witdh. This is the first I have seen such a plank.
http://www.imagestation.com/picture/sraid37/pd9f03e73518a6207304105df4e7bb8cc/fd1994aa.jpg

http://www.imagestation.com/picture/sraid37/p5f957b896fbbb3ec44455e6e62c41588/fd19948a.jpg
Jamie Hascall
10-31-2002, 01:03 PM
Whooee that must have been some nasty bilge cleaner they were sloshing around in there. ;)

But seriously, were the planks eaten more or less where the plank hit the saddle butts?

Jamie
On Vacation
10-31-2002, 01:13 PM
Where the wood hits the saddlebutts, its the original witdh. It appears that the planks were bedded in Dolphinite compound at the screw points. The scews was eaten up but the wood's in tack. I have never seen this myself, that I can recall, even in the old Connies that I have done work on and the old 37 and 43 Egg either.
brad9798
10-31-2002, 01:47 PM
Could it have been that way when it was fastened/built? I've seen some strange things on the insides of planks ...
rkrough
10-31-2002, 01:48 PM
Were the batteries in that vincity?, Looks like an acid has been eating things up

Rich
On Vacation
10-31-2002, 02:59 PM
What is so strange is that the toughy feely part against the frame is full size. It would be a real talent to fit the plank in a cupped shape so nicely around the area of full size. This was up foward of the engine room bulkhead. The whole cupped plank is hard as a new piece of wood. Notice also the bottom part is flat. So it doesn't appear to have taken any grain shape.

I am going to explore this further.
Dave Fleming
10-31-2002, 03:52 PM
I dunno about 'backing out' the entire length of the plank? Usually the plank is 'offered' to the hull and the frame location is noted on the inside of the plank. Each of those areas and some to spare are then 'backed out' if necessary but, I cannot recall seeing or doing 'backing out' the full length of a plank. A 20 or 30 footer would be some job to 'back out' for its entire length.
Now I am guessin' here folks but, is that Egg Harbor round bilged or hard chine? If hard chine there would be no need to 'back out' the plank and the fact that the flat spots are where the plank lay against the frame, lead me to that observation.
But I could be wrong, not the first nor the last time either, if ya folla? :rolleyes:
AngWood
10-31-2002, 03:55 PM
What about abrasion--something knocking around in the bilge for years, gradually wearing away the inside of the plank?

P.S. Do we win an Egg Harbor if we guess correctly?

[ 10-31-2002, 03:56 PM: Message edited by: AngWood ]
On Vacation
10-31-2002, 10:44 PM
Dave, it is against the keel. The boat is a round chime, but I can't see the backing out of any value for the garboard plank. A real confusing new one for me.

And this boat ended up on the rock jetty here and the keel was shoved up causing every saddle to break and splinter.
imported_Conrad
11-01-2002, 12:55 AM
Eggs are inhabited by small, nasty creatures that do the most unspeakable things in the dark. With daylight, they transform the lines into siren-like curves that seperate men from untold amounts of cash, only to resume their mysterious activities with the setting sun. I'm currently looking for an Egg Harbor 12-step program.....
nedL
11-01-2002, 07:37 AM
I t must be just one of those Egg / Pacemaker things! redface.gif Sorry guys, this just re-enforces the less than glowing opinion I've had for the construction of Egg Harbors & Pacemakers for the past 30+ years. :eek: (IMHO, Egg Harbor = Pretty boat, not so good construction)

[ 11-01-2002, 07:38 AM: Message edited by: nedL ]
On Vacation
11-01-2002, 08:07 AM
Conrad, kinda like a F ixed O r R epaired D aily truck. On a nice clear and calm night, you can hear the nocturnal rust coming alive.
Paul Denison
11-01-2002, 08:25 AM
Here is my guess. It was installed as you see it. The plank was taken from near the heart of the tree and the heart was separated from the plank during sawing. Maybe it just fell away or someone pulled it off after seeing the heart wood. Is the plank flat sawn or quarter sawn?
Thaddeus J. Van Gilder
11-01-2002, 11:10 AM
quarter sawn planking on an egg....

Not gonna happen
Dave Fleming
11-01-2002, 11:41 AM
Looks in the photo like VG to me.
On Vacation
11-01-2002, 11:46 AM
Just about as quarter sawn as you can get it. Look at the bottom side where the thumb is located. Pretty flat in my opinion with no cuping in it. I am going back down and look at the aft end under the cockpit to see if any of the aft section behind the bulkhead is like this one.

[ 11-01-2002, 11:48 AM: Message edited by: Oyster ]
Ron Williamson
11-02-2002, 07:02 AM
Is there any chance that some wise guy sandblasted it?
jeff pierce
11-03-2002, 01:05 AM
You know, Ron, that was the first thing that came to mind when I saw the picture. That's exactly what it looks like to me. Except that someone would have had to do it repeatedly to end up with that much erosion. No one would be that dumb...would they?
Ron Williamson
11-03-2002, 08:09 AM
The insides of old stables look a lot the same,where horses have chewed the lumber.That didn't seem realistic,but sandblasting?..Maybe.
R
On Vacation
11-03-2002, 08:16 AM
Still searching to solve this one. I am going all over the boat on Tues. If they sandblasted teh bilge, removal of the sand would have been a chore I wish not to have for a project.
John E Hardiman
11-06-2002, 01:13 AM
How 'bout an engine fire, and they scraped out the char....?
Wild Wassa
11-06-2002, 01:34 AM
How about corrosion from fire fighting foam. Not from the modern day foams but from the now banned foams.

Warren.

ps, or as Dave said, it looks like VG (verdigris). Did they ever use copper sulphate as a wood preservative?

[ 11-06-2002, 01:46 AM: Message edited by: Wild Wassa ]
Hughman
11-06-2002, 11:37 AM
I think sandblasting and corrosives would raise the grain (eat out the soft and leave the hard; Q-sawn, right?). R'ster, what does the adjacent frame look like - any wear?
Dave Fleming
11-06-2002, 11:51 AM
WW, VG here means Vertical Grain or as 'erster'calls it Quartersawn.
Since it just seems to be the garboard strake doubt the fire theory. Usual practice in fire rehab is blast with something not quite as aggressive as sand or other mineral grit. Crushed Walnut Shells is popular and in the hands of a ***trained***operator the finished area is not too shabby but what would be the point of going to all that trouble vs: replank?
I was thinking of limber holes 'n chain but???
AngWood
11-06-2002, 12:13 PM
In think Mr. Williamson is on to something. Some folks keep horses in the engine room for good luck. Any old horseshoes lying about? smile.gif
On Vacation
11-06-2002, 01:57 PM
The plank is about twenty foot long. I still can't get any info. on a possible fire or sandblasting to clean up the bilge. This is the only plank it is on. The mystery continues.
NormMessinger
11-06-2002, 03:08 PM
Well, since it doesn't look like yaall know any more about this than I do I can tell you what caused that interesting cupping in the exposed board. Obviously it was a combination of surface rot and oxidation coupled with the mildly abrasive action of water sloshing in the bilge. Actually, I've seen boards get fuzzy and soft on the surface so I'm only being half to two thirds facetious.

--Norm