I came across an interesting old article from the 1973 New York Times https://www.nytimes.com/1973/03/11/...ques-cousteau-pigeon-depopulation-saying.html and just thought I'd share it for any of you who, like me, grew up on Cousteau's adventures. I've been wondering lately how the Calypso fared in ice, since it made numerous trips through polar and antarctic waters. I don't ever recall any special reinforcements to the hull or any metal ice-bands at the waterline. However this article does document a time when the boat was actually holed and had it's shaft and propeller damaged (another argument for singles versus twins here!).
Cousteau's Calypso - polar cruising with a wooden hull
- Thread starter Mako
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psneeld
Guru
Heck, my friends were on the USCGC Westwind icebreaker when the ice pack pushed her against the Ross Ice Shelf and it gashed her open just above the waterline for something like 140 feet on a 269 foot ship. 
Glad I missed that trip....
Had to melt ice off the flight deck in the sink just to shave for the rest of the trip home.
Glad I missed that trip....
Had to melt ice off the flight deck in the sink just to shave for the rest of the trip home.
psneeld
Guru
Still.... going into areas that can build in thick ice quickly...it's not abrasion you are worried about.
There are quite a few failed missions compared to successful when talking ice.
Some people read about those areas of the planet and think they have it covered.....wrong.
Lepke
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About 50 years ago, wood boats operating in the ice had Iron Wood as a 2nd layer of planking above and below the waterline where ice would rub. It's very dense wood and usually doesn't float on its own. In my youth as a shipwright I worked on a number of Alaska boats and barges that had ice protection. It didn't make them ice breakers, but allowed them to work their way thru ice flows and pack ice.
GoneFarrell
Guru
Years ago my uncle was director of EPA in Alaska. Calypso came into Anchorage. Was dumping garbage over the side in harbor (according to my uncle).
He showed up at the dock, was invited on board.
Once they understood why he was there, they didn't speak english anymore, only French!
He showed up at the dock, was invited on board.
Once they understood why he was there, they didn't speak english anymore, only French!
78puget-trawler
Guru
Quite right. We called it iron bark, same stuff and yes it will sink like a stone. Actually a very pretty wood, dark with lots of contrasting grain, but super tough. Cannot drive a nail into it either.
My dad used to occasionally work on a local tug that had been converted from one of those same sweeper hulls, company was Alaska Outport, don't remember the name of the boat though, wait!! Just remembered. It was the Klehowa.
I was visiting my grandparents place in Fremont many years ago, family get together. I happened to look out towards the Fremont Bridge when lo and behold, the Calypso had just passed! Only time I ever saw it, outside of TV and books.
CaptainSEA
Veteran Member
The calypso as well as her sistership Calisto ( presently in Thailand) had reinforced copper at water line since they were built as minesweeper.
I used to craft wood doors in Vietnam from pyinkado, which is what we called ironwood. I believe there are many species of wood referred to by the “iron” name.
The wood was so hard that our carbide blades were constantly wearing out. Drove up our costs. It was very dense and probably would make a great ice belt.
The wood was so hard that our carbide blades were constantly wearing out. Drove up our costs. It was very dense and probably would make a great ice belt.
When Cousteau was exploring the Mississippi River, Calypso was holed by a log, and had to be hauled out in Greenville, Mississippi for repairs. A female friend of mine ran into Cousteau's son in a bar there while it was being repaired, and didn't believe him until reading about it in the paper the next day.
psneeld
Guru
ironwood....marvelous stuff...
Anyone with experience with it ever spend much time icebreaking or in Arctic/Antartic waters?
Copper sheathing? Unless very thick plate not much protection from real ice...just against abrasion in newly forming ice.
Anyone with experience with it ever spend much time icebreaking or in Arctic/Antartic waters?
Copper sheathing? Unless very thick plate not much protection from real ice...just against abrasion in newly forming ice.
boatruptcy
Senior Member
Yeah, those guys were just lucky right, no idea what they were doing. What arrogance..and ignorance.
CaptainSEA
Veteran Member
The copper was designed to protect the hull from the blasts from the mines, don’t know the thickness nor the efficiency for ice protection
psneeld
Guru
Protect from a mine blast?
I hardly think copper sheathing could do the work of inches of steel on larger warships they are designed to sink.
The copper might have been used to protect the wood before the use of fiberglass from worms like in the olden days.
You could be correct, but I would love to see the evidence and specifications of copper "mine protection".
diver dave
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I recall this trip made the TV series. Lots of folks banging away at deck ice. But, that was from an ice storm. That boat was double planked; can't hurt.
CaptainSEA
Veteran Member
The Calypso was initially a minesweeper, so the copper was designed to protect the hull from a distant blast, not from the direct impact of a mine. As mentioned the sistership of the Calypso is at the same marina where I have my boat and it is the explanation I’ve got from her captain... i know that they have removed the copper but no idea of the thickness, I will check with the captain once the yacht is back from the shipyard and will update accordingly
1891 Greeley Expedition
My Great Great Grandfather was the captain of a sealing ship called "Proteus". He sailed the Greeley expedition into the arctic in 1891. He lost his ship to ice in 1893 when they attempted to rescue the expedition for the second time. Ordered into the ice field by Lt Garlington, as the Army had official command of the rescue effort, my G G Grandfather told the army the ship would be lost in a pinch if they ventured further. They barely had enough time to get themselves off and some of the provisions. Proteus was built in Scotland of iron wood from the waterline down, and had steel sheathing for her prow. Proteus had a sister ship named "The Bear" and it was operated by the US Coast Guard in Alaska. When sailed by competent Arctic sailors, these ships can handle ice exploration quite well. When untrained government employees have control things can go south quickly. I don't recall the thickness of the iron wood for certain, but I think it was 6 inches from the waterline down. The steel prow sheathing I am not sure. The Proteus and the Bear were identical two masted steam assisted ships.
Not sure of this, but wouldn't copper be used on a mine sweep to avoid the magnetic field mines used by the Germans? No magnetism, no detonation. Just guessing.
My Great Great Grandfather was the captain of a sealing ship called "Proteus". He sailed the Greeley expedition into the arctic in 1891. He lost his ship to ice in 1893 when they attempted to rescue the expedition for the second time. Ordered into the ice field by Lt Garlington, as the Army had official command of the rescue effort, my G G Grandfather told the army the ship would be lost in a pinch if they ventured further. They barely had enough time to get themselves off and some of the provisions. Proteus was built in Scotland of iron wood from the waterline down, and had steel sheathing for her prow. Proteus had a sister ship named "The Bear" and it was operated by the US Coast Guard in Alaska. When sailed by competent Arctic sailors, these ships can handle ice exploration quite well. When untrained government employees have control things can go south quickly. I don't recall the thickness of the iron wood for certain, but I think it was 6 inches from the waterline down. The steel prow sheathing I am not sure. The Proteus and the Bear were identical two masted steam assisted ships.
Not sure of this, but wouldn't copper be used on a mine sweep to avoid the magnetic field mines used by the Germans? No magnetism, no detonation. Just guessing.
Cool story, Mr. More Old Parts And Rust [emoji846]
Makes sense that they’d use copper for “anti fouling” and light blast impacts. My old WW2 Jimmies were aluminum blocks. And I recall a Canadian minesweeper with big stainless steel 16V’s.
I recall watching that Cousteau documentary as a kid, and specifically recall the scenes of the dislodged shaft and damaged hull.
Amundsen, Nansen and others used the FRAM, she was timber, designed for ice and did well on several passages to the arctic and antarctic. She sailed further north and further south than any timber ship, I've been aboard her in a museum in Oslo, her hull is 2 feet thick in some places. Originally steam, she was the first polar exploration vessel to use a diesel engine.
The Calypso, on the other hand, was no FRAM.
Amundsen, Nansen and others used the FRAM, she was timber, designed for ice and did well on several passages to the arctic and antarctic. She sailed further north and further south than any timber ship, I've been aboard her in a museum in Oslo, her hull is 2 feet thick in some places. Originally steam, she was the first polar exploration vessel to use a diesel engine.
The Calypso, on the other hand, was no FRAM.
Northern Spy
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RCMP St. Roch is planked Douglas Fir over iron frames with ironbark sheathing. Bobbed around the Arctic for twenty years. Wintered over several years. First ship to go West to East. Can see her at the Vancouver Maritime Museum.
Gjoa was wood too.
Now over three hundred transits through the NW passage. Most of them small vessels.
https://www.spri.cam.ac.uk/resources/infosheets/northwestpassage.pdf
Gjoa was wood too.
Now over three hundred transits through the NW passage. Most of them small vessels.
https://www.spri.cam.ac.uk/resources/infosheets/northwestpassage.pdf
