BOAT STUFF
BOAT STUFF
@boats.bsky.social
Skeeting about commercial shipping.
No.
July 12, 2023 at 9:21 PM
We already route ships to take dominant winds into account, it’s not always a huge deal especially in the commodities trades… it’s kind of central to the kite sail idea but for some reason that never seems to gain widespread adoption.
July 12, 2023 at 2:27 PM
It’s something that gets explored every once in a while but doesn’t end up going anywhere for various reasons.

You lose a lot of efficiency because of the drag of the turbine itself, although ships don’t usually go at speeds where aerodynamics matter.
July 12, 2023 at 4:12 AM
The CMA-CGM Ben Franklin has a MAN B&W 11S90ME-C9.2 if you want to look into it, most of the specs and a fair bit of technical diagrams are online.
July 12, 2023 at 3:49 AM
…stuff that idles or travel slows a lot, like cruise ships.

For long haul stuff like most cargo ships, nothing beats a slow diesel for efficiency.
July 12, 2023 at 3:48 AM
I can’t find hard numbers but the ballpark figures I see are around 50-60% BTE for two-stroke diesel engines on a direct drive.

They’re *ridiculously* efficient. Where you’ll see diesel electric in the marine world is stuff with high maneuverability requirements (offshore service vessels) and…
July 12, 2023 at 3:47 AM
Yeah we’re going to see more of that as MBM comes online, as it stands most shipowners pass the cost of fuel on to the customer and as long as everyone’s ship’s are similar there’s no real incentive to invest capital into reducing fuel consumption in a major way.
July 12, 2023 at 3:33 AM
What info do you need? Most engine manufacturers have that stuff online, and the big ships are almost all direct drive (ie no gearing or transmission, the engine turns, the shaft turns.)
July 12, 2023 at 3:32 AM
The practical issue here would be that existing dock cranes are raised up when not in use and lowered after the ship is moored, so you’d need to refit the terminals to accommodate that type of arrangements.

It’d work for tankers though.
July 12, 2023 at 3:27 AM
Pretty much!
July 12, 2023 at 3:13 AM
(Fun fact, the way the UN’s maritime body works, Liberia and Panama have more weight in decision making than the US.)
July 12, 2023 at 3:07 AM
And how’s that been going so far?

It took decades of work to get to IMO2020, nevermind something more complex like the ballast water management convention or the anti-fouling stuff.

It’s happening. Not fast enough, I agree, but it’s happening. MBM is gonna be a hoot.
July 12, 2023 at 3:06 AM
“…with some suffering damage such tainted fuel clogged filters and jammed injection pumps.”

This isn’t just a minor inconvenience, it can make the ship lose power, steering and propulsion, which depending on weather or location can be Not Great.
July 12, 2023 at 3:04 AM
Yeah those guys. You understand how MBAs think, right? Money returned to the shareholder is good, money spent on capital is bad, money spent on opex is worst.
July 12, 2023 at 2:58 AM
…move stuff as cheaply as possible so Amazon can overnight you an oven mitt.

And the planet’s dying! But the ships aren’t the problem, capitalism is.

I don’t know how to fix it, though. I know corn oil on January 1st ain’t it, but overall I’m out of ideas.
July 12, 2023 at 2:57 AM
I know right? They want like ten times what a philipino would take.

(Nevermind that there currently aren’t enough American sailors to man the US’ minuscule merchant fleet)

But yeah the worldwide economy relies on a whole network of exploited people from developing countries burning IFO to …
July 12, 2023 at 2:55 AM
How much did they spend on lobbying? Because refitting a container ship to LNG is 15-20 millions.
July 12, 2023 at 2:50 AM
1. Where are those millions in subsidies? I’ve never seen them.

2. You’d have to give *A LOT* of subsidies to convince someone to reflag you the US. Jones Act boats are riiiiiiiidiculously expensive to operate, and the crew is going to want a living wage.
July 12, 2023 at 2:49 AM
Paywalled, but lol, that’s Maersk. The one big shipping company that opted to pretend to play nice instead of trying to fly under the radar like the rest of them.

Maersk alone probably has a bigger lobbying / marketing / comms budget than the rest of the non-cruise shipping industry.
July 12, 2023 at 2:48 AM
I mean yeah, but how do you convince them?

You’re a lawyer, I’m sure you can foresee the jurisdictional issues. It’s how we got into this whole mess with flags of convenience in the first place.
July 12, 2023 at 2:45 AM
The actual lobbying by the shipping industry is a tiny portion of their expense.

It’s also a tiny portion of lobbying. Vanishingly small.
July 12, 2023 at 2:44 AM
3. Most ships are registered in third world countries (because capitalism) that have no funds to guarantee loans for improvements

4. Modern ships are built to a 15-20 years life cycle so a major refit like switching to PNG doesn’t usually make sense, it’s cheaper to replace the boat altogether.
July 12, 2023 at 2:43 AM
1. They’re not spending that much on lobbying, lobbying is cheap.

2. Natural gas is far from perfect, but it’s happening and in some surprising market. The industry is resistant to change, and I’m curious to see how methanol is going to shape out.

(Cont’d)
July 12, 2023 at 2:42 AM
Well yeah.

I’d also like a pony.
July 12, 2023 at 2:40 AM