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Old 06-12-2013, 12:37 PM   #201
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Originally Posted by SeaHorse II View Post
I think it all started with red lead paint.
Nope, red lead is traditionally a primer for wood, a good one too.

The traditional red antifoul is because it was (when I was a boy) all formulated with copper. Anti-fouling paint - Wikipedia, the free encyclopedia In fact, on this coast you will never hear the words, "anti-fouling" from fishermen, it's "copper paint".
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Old 06-12-2013, 12:48 PM   #202
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Lead(II,IV) oxide, also called minium, red lead or triplumbic tetroxide, is a bright red or orange crystalline or amorphous pigment. Chemically, red lead is Pb3O4, or 2 PbO·PbO2. Lead(II,IV) oxide is used in the manufacture of batteries, lead glass and rust-proof primer paints.

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Old 06-12-2013, 02:14 PM   #203
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Oldfishboat

A couple of pics of the old girl with the belly.

She has a wet ride ! in chopy weather. But very smooth and zero bang and or shudder against any wave action.

Still runs a little bow heavy with a full load of fuel but over time, thats changing. By moving a few things around like batteries, waist tanks, etc etc.

Small but she fits us fine. Not a yacht .
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Old 06-12-2013, 02:35 PM   #204
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YES psneeld. Red was the traditional color for primer on cars. Didn't think of that. When I was young most of us had cars in primer a lot of the time as our cars were a "work in progress". And I feel the same way about car primer as boat bottom paint.

TAD thanks we needed that. Very nice to have you around.

OFB I lust every time I see your boat. There was one like yours at the Everett fish boat floats for a long time and I waited and waited for a for sale sign to appear.
Aft CG? That's like poison in a following sea. I converted a FB while I lived in Vancouver and I took the big gas GMC out of the wheelhouse and put a 25hp Palmer gas in the fish hold.
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Old 06-12-2013, 02:56 PM   #205
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Eric

I looked for years to find an x fishboat that I could take a chainsaw too. Dam hard to find one that you would not want to add ballast some where. She came with some in the aft section, original to the build. But not much.

Invader is an old combo boat that used to have a live well. They are a little different in design. Like having three compartments with in the hull. I am very slow to change much as my original wants needs have changed over the years. I may add the mast , polls, and fish back onto the boat and that changes stuff up again.

But in her current cruising conditions she runs nice and in a following sea she just rises up , lets the swell roll under. No fuss no muss but she has a large rudder. Just don't get her sideways in the river current while docking or heading to the travel lift. Her keel really will not let her slip around so too speak.

She will roll as you would expect but easy to just change tack and carry on.

The old boat really has done a grand job for us, owes my nothing yet continues to just do what ever we ask.

But you know I feel boats have souls and are in fact "living".

Have too laugh !
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Old 06-16-2013, 01:59 PM   #206
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I don't have any shots of my bottom yet but thankfully another Cheoy Lee 66 owner has laid her girl over on her side especially so we can see underneath. I am very grateful to have saved the expense of doing the same myself.

Looks a nice efficient round bilge double ender style trawler hull which explains why she is so efficient. No transom dragging in the water here.
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Old 06-16-2013, 03:02 PM   #207
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Old Fish Boat......you know, ever since I saw the first picture of your boat years ago (the first one above), I have believed that this is indeed, the most alluring vessel I've ever come across. Yeah, there's more oppulant, more efficient, more precious, more this or that, but there is just out-and-out handsome, and you've got it there. It's one of those boats that when you see it passing you on the sound, and there's no more space on your camera memory card, you back up and delete the grand-baby's pictures just to get a shot of that beautiful thing underway. I think you should use the first picture above for your Avatar.......guaranteed to win the coveted Woodsong Avatar Trophy. I'll Photoshop you a set of solid gold hull jack-jack stands to replace the 55 gallon drums!
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Old 06-16-2013, 06:57 PM   #208
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Those are some beautiful bottoms! Here is the end of my modest little pocket trawler... full displacement... 16x10 prop on 1.25" shaft. She'll cruise comfortably at 6 knots, which is about hull speed. Draft is around 3' 3".

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Old 06-16-2013, 07:34 PM   #209
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VT,

Here is a Vashon Trawler in Ketchikan Alaska.

Could be the smallest of the full disp trawlers.

What do you think VT?
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Old 06-16-2013, 07:40 PM   #210
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I don't have any shots of my bottom yet but thankfully another Cheoy Lee 66 owner has laid her girl over on her side especially so we can see underneath. I am very grateful to have saved the expense of doing the same myself.

Looks a nice efficient round bilge double ender style trawler hull which explains why she is so efficient. No transom dragging in the water here.
That is sickening! How did it happen?
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Old 06-16-2013, 07:48 PM   #211
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Thanks, ManyBoats! That is neat! You posted the commercial version of mine, which was set-up for salmon fishing--I haven't seen this one before. I believe Vashon Boat Works made two versions. Notice the wheel house is slightly larger on mine. My diesel is aft and in what would be the "fish hold" on the commercial version. I thought mine would look "cool" with outriggers and a cross-tee but wifey said no!

I guess I really have a "troller". Am I still allowed on this forum?
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Old 06-16-2013, 07:49 PM   #212
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Those are some beautiful bottoms! Here is the end of my modest little pocket trawler... full displacement... 16x10 prop on 1.25" shaft. She'll cruise comfortably at 6 knots, which is about hull speed. Draft is around 3' 3".

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Old 06-28-2013, 06:32 PM   #213
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87 tonnes of Bottom



My dinghy makes more wake at 10 Kts.
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Old 06-28-2013, 10:46 PM   #214
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Dirk thanks for the really excellent example of what a good full displacement hull should look like. This is the end of the boat that tells what a boat can do. This particular old girl is no doubt heavy.

A canoe is a FD hull too. It will exceed hull speed but T>B>Mclint... won't.
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Old 06-28-2013, 11:37 PM   #215
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Great shot, Dirk!
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Old 06-29-2013, 08:03 AM   #216
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Best shot I have of the boats hull. It has a keel that runs about 3/4 of the hull. The builder actually added about 3 additional feet after it was built (hull#1) as it did not track well. She is basically a flat bottom sharpie style hull designed by Ted Brewer of sailboat fame.
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Old 07-25-2013, 06:17 PM   #217
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Firefly's bottom

reference photos here
Hull Shapes----Show us your girl's bottom

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Scott,
I wouldn't call her "sailboatish" at all. Full displacement to be sure and probably the most efficient boat here on the forum. Firefly has a very slippery hull. She's a looker too.

Island Eagle w her much higher displacement and high buttock line angle (angle of the rake of the stern) is also very much a full displacement craft. Neither boat is more or less a full disp craft but Firefly is considerably more efficient.
Do you think she could have an even harder chine from her midpoint length to her stern?....along with a 'flat plate' low-deadrise V section to her central keel? I ask in consideration of building the hull for one of these with steel panels.

Then maybe some bilge keels of some sort to resist some rolling ?
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Old 07-28-2013, 09:47 AM   #218
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Here are some pictures of Island Eagle up on the ways. The last one shows Jesse of Nanaimo Shipyards getting ready to cast in place the prop zinc, and it gives you a good idea of the scale.
What size vessel is this?

Is the hull shape similar to any other DeFevers?
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Old 07-28-2013, 09:59 AM   #219
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So would people agree that a keel that runs all the way to the stern is a full keel?


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Old 07-28-2013, 10:40 AM   #220
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"would people agree" indicates that you think it is and I agree. It's more or less a full keel as I see it. A bit less in that the keel isn't 100% full. It's cut off at an angle. There keels that are much "fuller" than yours (mine for example) but if you were having lunch w a group of pleasure trawler skippers you would claim to have a full keel.

It's a bit like the FD, SD and planing hull types. There is no definitive point where one can say this hull is FD or Planing. It's all a grey zone. Attempts have been made to nail the issue down but in order to make a relatively positive definition one must understand such things as the quarter beam buttock line and other things common to discussions on Boat Design.net but not usually on a forum like TF.

But no to your question re "all the way to the stern". One quarter of the way aft of your stem ther'e is probably little or no keel. And on my Willard the keel dosn't extend all the way to the absolute stern of the hull. But ther'e is a lot of keel fwd as well as aft. However most all trawler yachts have a keel that that tapers down to next to nothing in the fwd end so it's really not full. But if a keel starts (aft) just ahead of the prop and extends below the prop and carries most or about 3/4 of it's draft (depth) fwd to very close to the stem it is beyond a doubt a full keel.
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