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Largest cargo sailboat completes first Atlantic crossing

marineinsight.com

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Re: Largest cargo sailboat completes first Atlantic crossing

#141

Post by throwaway198846 »

SJC_Hacker wrote: post #114
bloudermilk wrote: post #35

Earlier quoted context omitted.

That’s a decision we, as a civilization, need to make. I personally hope we manage to enact transnational policies that effectively price environmental and social externalities in my lifetime. Or else witness “free market” capitalism continue to degrade our planet and the lives of millions of less privileged people.

> That’s a decision we, as a civilization, need to make. I personally hope we manage to enact transnational policies that effectively price environmental and social externalities in my lifetime. Or else witness “free market” capitalism continue to degrade our planet and the lives of millions of less privileged people. Name one decision that the entire human civilization has ever consciously made

Banning CFCs

Re: Largest cargo sailboat completes first Atlantic crossing

#142

Post by contrarian1234 »

deepsun wrote: post #47
turpialito wrote: post #44

Napkin calculation: The Neoliner Origin cruises at 11 kts (20Km/h). "Straight line" on Google Earth from Saint-Nazaire to NY is about 5300 Km, so it crosses the Atlantic in 18 days. The Emma Maersk (which I am aware plies a different route, but just for comparison's sake) cruises at 25kts (46Km/h) and therefore takes about 5 days.

I worked with maritime shipping folks, and they always say "We don't care how slow it is, but we care A LOT to estimate the time it takes right". The logistical chain is long, so delaying one link breaks the whole chain, and that's costly.

that doesn't really make any sense. You'd just overestimate the time and if you arrived ahead of schedule you'd wait out at sea for the "correct" time

Re: Largest cargo sailboat completes first Atlantic crossing

#144

Post by [deleted] »

titannet wrote: post #139
wffurr wrote: post #33

Earlier quoted context omitted.

More efficient is something that directly provides thrust like a flettner rotor.

E-Ship 1 exists: https://en.wikipedia.org/wiki/E-Ship_1 They report fuel savings up to 25%, so it may be viable for some ships types and voyages. But a long way from propelling the whole ship.

[deleted]

Re: Largest cargo sailboat completes first Atlantic crossing

#145

Post by skylurk »

mlhpdx wrote: post #98
aerostable_slug wrote: post #95

Earlier quoted context omitted.

American submarines and aircraft carriers are nuclear-powered. They can sustain over 30 knots without stopping effectively indefinitely. They make their own water and, where needed, breathing air. The only thing they need to stop for is food, and they have enough aboard to circumnavigate the globe easily. It would be really hard to sustain an average speed of 30 knots in a sailing vessel for the entire journey. Certa…

That’s correct, but look up the Gitana 17. > The Gitana 17 is a 100ft trimaran designed to foil offshore at sustained speeds of 45 knots or more. Also, 1964, the all-nuclear Task Force One, including the USS Enterprise, completed a high-speed circumnavigation in 65 days. The winner of the Vende Globe did it in 64. And that was solo (one person on board).

The Vende Globe is ~44k km (Mm?) and Operation Sea Orbit was ~49k km.

But the Vende Globe is restricted to monohulls (i.e. no hydrofoil trimarans) and as you wrote, is more about individual skills.

Re: Largest cargo sailboat completes first Atlantic crossing

#146

Post by Ekaros »

thrance wrote: post #30
JumpCrisscross wrote: post #26

“The Neoliner Origin is designed to reduce greenhouse gas emissions by 80 to 90 per cent compared to conventional diesel-powered cargo ships.” Is it cheaper?

If you take climate change externalities into account, it just might be. Sure, your chocolate might be a bit more expensive, but at least your descendants will have some chocolate at all.

If you took climate change externalities into account you wouldn't allow selling of chocolate.

Re: Largest cargo sailboat completes first Atlantic crossing

#147

Post by rkomorn »

Unearned5161 wrote: post #110
rkomorn wrote: post #83

Earlier quoted context omitted.

Not OP, but in general, while some things do improve my life (climate control, hot water, cooking), I'd say there are also plenty of things that don't. I don't think my device usage habits or media consumption actually improve my life. I'm not sure the energy that's been dumped into producing the many gadgets I've bought over the years really improved me life. I'd say that a lot of energy goes into distracting me in…

I think the point is larger than any individual. It involves the environment in which you're located. Infrastructure changes require energy, lots of energy. Increasing quality of life for most things we've built in our world requires investing lots of energy at the state level. You reap the benefits of this by living in the state.

Yeah, but even looking beyond individuals, my personal take is I'm no longer convinced, for example, all the massive amounts of electronics, fast fashion, and other consumerism-oriented production (which definitely do all use energy) are actually improving life. Same goes for a lot of online businesses that are occupying data centers and using electricity.

eg I'm unconvinced smart phones are truly improving life, let alone getting yearly incremental updates from every manufacturer.

So yes, to some extent, most life improvements are going to use some energy, but I wouldn't argue that most increases in spent energy lead to quality of life increases for a majority of people.

Re: Largest cargo sailboat completes first Atlantic crossing

#148

Post by [deleted] »

cl3misch wrote: post #133
JeremyNT wrote: post #85

Earlier quoted context omitted.

Rotor[0] retrofits already have been done on full size tankers[1]. This is probably a more reliable and practical solution than traditional sails. 0 https://en.wikipedia.org/wiki/Rotor_ship 1 https://en.wikipedia.org/wiki/Maersk_Pelican

But why would you use a motor to spin a rotor instead of a submerged propeller?

[deleted]
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