@nebulousmenace @stavvers The article mentions something about SkySails. Never heard of them before, even though they were a German company.
Maybe the idea just didn't fly back then because burning heavy oil still was fucking cheap, YOLO.
@stavvers Next up,
My kite is bigger than your kite.
To protect our customers our kites can only be used on approved 'kite readyยฎ' ships.
Certification for operating kite ships will be issued following successful completion of our KiteShipโข course. In Seattle.
Kites are supplied as sealed units any attempt to dismantle or repair a kite will invalidate your warranty.
Kites using, for example, third party string or other non-standard accessories will cease to function.
@stavvers Okay, but in fairness they invented sails of massive scope that could catch winds above the sea-level wind and would be tethered via sturdy cable.
โฆ so, you know, way more dangerous sails. ;)
@stavvers they never fail to disappoint.
But will those kites have the ability to self-distruct?๐ค
@stavvers "If only they would loosen up those pesky child labor laws, so that someone could fly those kites..."
(Yeah, I'm aware of the technology that they're talking about, which makes it all the more laughable, because they've been talking about it for fifty years and still haven't gotten the media a picture that doesn't make them look dumb.)
@stavvers TBF this is a GOOD idea purely in engineering terms: kites can take advantage of wind speeds and directions that vary at different altitudes, aerofoils bolted to the deck on rigid masts are limited to surface winds. But it's still only a supplement for engine power: modern supply chains can't cope with VLCSs getting becalmed.
The real answer is marine nuclear propulsion. Or teleportation booths. Or sparkly unicorns. Or something.
@dr2chase @stavvers Here's the LARGEST diesel engine in the world, per wikipedia, the Wรคrtsilรค-Sulzer RTA96-C. Two-stroke cycle, 14 cylinders, puts out 80MW (or about 107,000 horsepower), weighs over 2,300 tons. Used for powering 170,000 ton (and up) container ships.
It's hard to see how to replace a medium-sized city's power station with any kind of sail (or to abolish this scale of shipping in a century when climate change will cause frequent local crop failures).
https://en.wikipedia.org/wiki/W%C3%A4rtsil%C3%A4-Sulzer_RTA96-C
@cstross @stavvers The big advantage of kites is that they're completely retractable and don't affect vertical clearance, which is strictly limited at most cargo ports due to their loading cranes (preventing the use of masts).
Also, even if this doesn't replace engines, it's still quite useful. There are some long-distance ferries in the pacific islands currently using a combination of sails, solar, and diesel generators (running scheduled service between high-clearance ports) that saw an over 90% reduction in fuel consumption compared to their predecessors. Kites could possibly expand this to low-clearance ports as well.
@stavvers boats crossing the ocean powered by nothing but wind!?
What a time to be alive.