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‘They cannot be jammed’: fibre optic drones pose new threat in Ukraine (www.theguardian.com)

submitted 1 day ago by HellsBelle@sh.itjust.works to c/world@lemmy.world

138 comments fedilink hide all child comments

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.

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[–] Kazumara@discuss.tchncs.de 13 points 17 hours ago* (last edited 10 hours ago) (1 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

[–] nednobbins@lemm.ee 4 points 11 hours 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.