this post was submitted on 23 Apr 2025
458 points (98.3% liked)

World News

46135 readers
2543 users here now

A community for discussing events around the World

Rules:

Similarly, if you see posts along these lines, do not engage. Report them, block them, and live a happier life than they do. We see too many slapfights that boil down to "Mom! He's bugging me!" and "I'm not touching you!" Going forward, slapfights will result in removed comments and temp bans to cool off.

We ask that the users report any comment or post that violate the rules, to use critical thinking when reading, posting or commenting. Users that post off-topic spam, advocate violence, have multiple comments or posts removed, weaponize reports or violate the code of conduct will be banned.

All posts and comments will be reviewed on a case-by-case basis. This means that some content that violates the rules may be allowed, while other content that does not violate the rules may be removed. The moderators retain the right to remove any content and ban users.


Lemmy World Partners

News [email protected]

Politics [email protected]

World Politics [email protected]


Recommendations

For Firefox users, there is media bias / propaganda / fact check plugin.

https://addons.mozilla.org/en-US/firefox/addon/media-bias-fact-check/

founded 2 years ago
MODERATORS
 

At a secret workshop in Ukraine’s north-east, where about 20 people assemble hundreds of FPV (first person view) drones, there is a new design. Under the frame of the familiar quadcopter is a cylinder, the size of a forearm. Coiled up inside is fibre optic cable, 10km (6 miles) or even 20km long, to create a wired kamikaze drone.

Capt Yuriy Fedorenko, the commander of a specialist drone unit, the Achilles regiment, says fibre optic drones were an experimental response to battlefield jamming and rapidly took off late last year. With no radio connection, they cannot be jammed, are difficult to detect and able to fly in ways conventional FPV drones cannot.

“If pilots are experienced, they can fly these drones very low and between the trees in a forest or tree line. If you are flying with a regular drone, the trees block the signal unless you have a re-transmitter close,” he observes. Where tree lined supply roads were thought safer, fibre optic drones have been able to get through.

top 50 comments
sorted by: hot top controversial new old
[–] [email protected] 69 points 2 days ago (3 children)

Another proof that wired connections are superior

[–] [email protected] 11 points 2 days ago (1 children)

Rhythm and fighting game players have known this for decades now

[–] [email protected] 3 points 1 day ago

Yes we fucking do

[–] [email protected] 6 points 2 days ago

I N P U T L A G

[–] [email protected] 4 points 2 days ago

Damn straight.

[–] [email protected] 19 points 2 days ago* (last edited 2 days ago) (2 children)

Those news are already not so new any more. We've had reports of those two months ago.

Since fiber optic wire guided missiles exist it's not that much of a leap to think it should work with drones too, so long as the weight works out.

Fiber is really really thin. 9 micrometer core diameter and 125 micrometer cladding diameter (incl core) and 250 micrometer coating diameter (incl core, cladding). The 10 km spools we use in our lab for network equipment testing are boxes of only like 20x20x10cm, and those aren't optimized to be extra small with bend insensitive fiber. I can totally believe the 1.2-1.4 kg for 10 km in the article.

Edit: leak -> leap

[–] [email protected] 1 points 1 day ago

The only news here are the ukrainians using them. Russia has had them for years by this point.

[–] [email protected] 5 points 2 days ago

Wire guided missiles have been in use since WWII.

Markus Reisner has a pretty good explanation of how they're deployed in one of his videos.

They have much shorter range so they basically set them up as ambushes. The wired drone gets hidden somewhere at a choke point. An other operator flies a recon drone at long range. When they report that a good target has come into range the wired drone takes off and hits the target.

[–] [email protected] 13 points 2 days ago (1 children)

Reminds me of those old torpedos where the propeller was powered by pulling a cable.

https://youtu.be/qvtZIdSI1Yk

[–] [email protected] 11 points 2 days ago (2 children)

There were some actual torpedoes that used miles-long wire to control

load more comments (2 replies)
[–] [email protected] 6 points 2 days ago (2 children)

Don't these reveal the location of the operator, though?

[–] [email protected] 11 points 2 days ago (2 children)

How? If you think they're going to successfully follow a filament thinner than human hair over 6 miles I'd love to know

[–] [email protected] 5 points 1 day ago (2 children)

Ok, but then how strong can such a filament be? Seems like anything and everything could potentially severe the connection

[–] [email protected] 6 points 1 day ago

there's literally 70 years of fly by wire minitions I'm sure there's a rich back and forth series of countermeasures and baffles

[–] [email protected] 5 points 1 day ago

Since the filament is not under tension as it is unwinding I think unless someone intentionally cuts it or it jams somehow it should not jus break.

[–] [email protected] 5 points 2 days ago (1 children)

I mean after the attack the strands left could be used to trace operation spots. But I guess you're right, I didn't realise they were that thin

[–] [email protected] 2 points 1 day ago

You may be right, but not quickly and either end can cut and run of they find the line intercepted. These usually aren't launched from a stationary base

[–] [email protected] 4 points 2 days ago

Drop off this drone with a different drone. Then fly it out wherever the other drones couldn't get to.

[–] [email protected] 30 points 2 days ago (4 children)

Next evolution, carrier drones. Larger fiber drones that carry smaller radio drones and can also act as a repeater when needed.

[–] [email protected] 3 points 2 days ago

Already exist.

[–] [email protected] 9 points 2 days ago

"Carrier has arrived."

load more comments (2 replies)
[–] [email protected] 17 points 2 days ago (5 children)

this sounds so stupid but it might work

[–] [email protected] 17 points 2 days ago* (last edited 2 days ago) (1 children)

I build some (they aren't in Ukrainian hands yet, but will be - if they want them, because they're advancing super fast and could be many steps ahead). There is no "might", they work.

10 kilometers of fiber weighs 1.5 kg, less if you buy fancier kinds of fiber. A drone with 10-inch props lifts this without problems. You can bend the fiber around a pencil and only experience degraded signal. Only a 90-degree bend will make it snap. In the war zone, landscapes after some battles already resemble "attack of the spiders" movies.

In peace time, the challenge is finding a farmer who allows using their field to test this. Promising to reel everything in and pay for damaged crops goes a long way, though. But sea is an even better idea - easier to reel it back.

P.S.

I am quite grateful to an Ukrainian radio amateur, Serhii "Flash" Beskrestnov. He published info about the early Russian models that were found crashed, and made a big deal about it, as one should. People listened to him and took him seriously, and started developing them ASAP.

[–] [email protected] 3 points 2 days ago (1 children)

bend the fiber around a pencil and only experience degraded signal

Interesting. Are you using G.657.A2 then?

[–] [email protected] 3 points 1 day ago (1 children)

According to labels, I'm using plain ordinary G.652.D with a 25 mm bending radius. Maybe I got lucky with the pencil experiment. :)

I know the "bend insensitive" versions exist, but when the cheaper alternative worked, there seemed to be no need.

[–] [email protected] 2 points 1 day ago

Wow interesting! Thanks for checking the label!

[–] [email protected] 9 points 2 days ago (1 children)

At first I imagined the drone dragging its cable and that seemed terrible, but then I realized they’re carrying a spool and they let cable out as they go. That’s actually brilliant and absolutely could work. 12 miles of cable. Only thing is it adds weight so you can’t deliver as much explosive payload.

[–] [email protected] 3 points 2 days ago (2 children)

Honestly, it's old tech. There were guide-by-wire missiles for a long time before this.

load more comments (2 replies)
[–] [email protected] 4 points 2 days ago (1 children)

They do work. They've been using them to blow up tanks.

[–] [email protected] 4 points 2 days ago

Sure. But it just might still work.

load more comments (2 replies)
[–] [email protected] 51 points 3 days ago (10 children)

This kind of idea is between genius and stupid.

It's a cheap an easy solution to a lot of problem, and it sounds like the kind of proposal an intern would do

[–] [email protected] 42 points 3 days ago* (last edited 3 days ago) (1 children)

Drone manufacturer: "We're having trouble with our drones getting jammed, any ideas?"

Intern: "I always use CAT6 for my pc"

Drone manufacturer: "You goddamn genius!"

[–] [email protected] 28 points 3 days ago

Kids these days relying on wireless everything and don't realize the security and reliability of a wired connection.

[–] [email protected] 28 points 3 days ago (7 children)

It's neither, they're spare wire reels for older tow missiles which were wired for the same reason.

load more comments (7 replies)
load more comments (8 replies)
[–] [email protected] 60 points 3 days ago* (last edited 3 days ago) (33 children)

Wouldn't the fiber lead directly back to the pilot, though? You'd have to constantly be moving locations, otherwise they could just follow the wire.

Edit: I know, I know, the more I've thought about it--and despite them actually proving it's possible to do as mentioned in the article--it's just not very practical to do in many situations. As one commenter mentioned below, after seeing pictures of some trees, numerous drones create a web among trees/bushes/etc. So tracing lines when drones are launched from multiple locations would be extremely difficult and they could even set up ambushed at certain points if they saw enemy scouts doing it.

[–] [email protected] 44 points 3 days ago

It's real long, like miles of fairly small transparent cable.

[–] [email protected] 41 points 3 days ago

From the article :

There are examples of drone operators from earlier this year being able to trace the cables back to the positions from where they were launched and target the enemy crews. But if this technique was a successful one, fibre optic drones would have disappeared as soon as they appeared on the battlefield, when – from presidents to workshops – all the talk is of increasing numbers.

[–] [email protected] 23 points 3 days ago (18 children)

This is not new tech. We have been using wires like this in the battlefield since the 70's. I was a TOW gunner and shot plenty of missiles that have a wire like this drone. Except, ya know it's a missile and it moves significantly faster. TOW stands for Tube launched Opitically Wire guided missile.

Ask away if you wanna know anything about em.

load more comments (18 replies)
load more comments (30 replies)
[–] [email protected] 33 points 3 days ago (8 children)

This has been going on for a few months now. Why is this a "new threat" ?

There have even already been battlefield videos where you see tons of fibre optic in the air.

load more comments (8 replies)
load more comments
view more: next ›