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Topic: New photo of PT 109 under JFK comes to light |
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Jerry Gilmartin |
TOP BOSS
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 Posted on: Oct 23, 2014 - 9:34pm
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Hi Chip and Earl,
Yes Chip I am aware the photos I posted were from the movie set in 1962, I intentionally placed them on there to mess with all of the "PT109 is the only PT Boat that matters and all I care about" people out there. Sort of a way to "Yank their chain" so to speak. But it was done all in good natured fun. Take care,Jerry
Jerry Gilmartin
PT658 Crewman
Portland OR |
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Will Day |
TOP BOSS
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Posted on: Oct 23, 2014 - 10:31pm
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PLUS the fact that Jerry is just plain evil. . .
Will |
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Jeff D
Moderator
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Posted on: Oct 24, 2014 - 2:09am
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COOL IT'S ABOUT TIME FOR ANOTHER 109 DISCUSSION I SEE WE'RE COMING OUT OF AL'S CLOSET!!! I THINK THE 109 WENT DOWN IN 2 X 1000 PIECES.
Wow Chip, that's unreal. I wonder how often someone buys a copy.
Zeus, I'd guess it was an oxide of copper because it was reddish. I've heard modelers say a "boxcar red" is a good substitute if you can't get the WEM paints.
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zeusbheld
Advanced Member
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Posted on: Oct 24, 2014 - 4:04am
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Quote:
Zeus, I'd guess it was an oxide of copper because it was reddish. I've heard modelers say a "boxcar red" is a good substitute if you can't get the WEM paints.
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Copperoyd could be CU20, that's a fairly bright red. This is my guess for what's in just about any anti-fouling paint I've ever seen. Formulations I've seen for sale tend to be darker/boxcar-ish, and look almost like red Fe2O3.
It will slowly oxidize CUO, which would be in the black or grey range.
The entire reason for using copper in anti fouling paints is its toxicity to barnacles and such which means changing over time would be a good thing--more toxins released. What's interesting about this, is that it at least suggests a hypothesis for that apparent boot topping in the photos of the 109 on the tanker: it oxidized faster where it was exposed to air. It doesn't look like a deliberately painted boot topping, too sloppy.
Pure copper anti fouling paint tends to be orange-ish or even a bit brown-ish. Also I expect it would tend to oxidize to a green patina--most modern pure-copper antifouling paints I know of would.
My understanding is that vets typically describe copperoyd as red. For this reason, I suspect the pure copper lacquer described in "Hell on Keels" was a one-off, what was available on the tanker they were riding to the Pacific. Another case of using what ever was at hand.
I'll probably use real anti-fouling paints on my boats, just because I suspect its' easier to get around here than model paint.
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Jeff D
Moderator
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Posted on: Oct 24, 2014 - 6:44am
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While PT paint is beyond my narrow field of PT expertise, it's been discussed by the experts here that the boot topping is as you say, discoloration from the water and not painted.
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Drew Cook
TOP BOSS
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Posted on: Oct 24, 2014 - 11:42am
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In my experience painting the bottoms of my Dad's work boats, the copperoid bottom paint was a flat brick red.
I also remember getting a can of Krylon spray paint -- can't remember what the actual color designation was (it may have been "Primer Red?") -- some years ago, when I was planning on building the Lindberg 1/32nd scale PT, that was a solid match for this color.
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Will Day
TOP BOSS
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Posted on: Oct 24, 2014 - 12:01pm
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Stu Hurley did a really nice job of weathering and delineating the boot-top on his 109 model......
Will |
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CJ Willis
TOP BOSS
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Posted on: Oct 24, 2014 - 2:54pm
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Guys I helped scrape and repaint the bottom of PT 242 twice during my 13 months aboard. In dry dock. ( once at Rendova and once at Green). .All I can tell you is that it was red and pretty thick and we applied it with about a 4 inch brush. If I remember correctly it took about all day. At that time we didn't worry about what tint of red it was.
C. J. Willis |
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David Waples
TOP BOSS
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Posted on: Oct 24, 2014 - 6:45pm
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Hi CJ,
I know it's been a long time but do you remember what made up that dark film along the waterline? Was it biological or was it oil and other scum? Do you remember what you had to do to get it off the boat?
Thanks for sharing your memories.
Dave
David Waples |
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CJ Willis
TOP BOSS
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Posted on: Oct 24, 2014 - 6:59pm
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Dave: I believe it was moss. It was not scum or oil. We never removed it until we went into dry dock.
C. J. Willis |
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