I’m pretty dumb, what’s the significance?
There’s been a huge increase in the usage of fiber optic drones by Ukranian forces in that area.
Which is significant how / why?
Drone usage has played a big role in the war. Early on they were just dropping explosives on live troops and later started doing kamikaze runs where the drone would detonate on impact. Now drones can even drop anti tank explosives.
As drone usage has increased, this opened the opportunity for units to start deploying signal jamming setups-- such as an infantry unit with a huge array of antennas set up to jam any wireless device within a certain radius. Since drones were operated wirelessly this meant the drones just crashed.
To combat this, both sides have started using fiber optic connections to control the drones. The drones have a spool underneath them with the fiber optic cable and i have seen some advertise a range as far as 40km so far. This means the drones no longer can be jammed like before.
Recently Ukraine announced they have a laser that they can use to shoot down drones as another advancement in the technology.
And all of this IMO is why the war in Ukraine has been allowed to continue. It’s live weapon/ technology testing for modern warfare
allowed to continue by who? the way I see it Russia could end the war anytime by just going home
Yes, i agree. I meant other countries haven’t given ukraine as much aid as they could, or pressured Russia directly enough to end the war. Other countries are benefiting from the technology advancements being made in Ukraine so they have an interest in giving the minimal help needed to keep the war going.
Thanks I looked up more about it. Roughly 7 mile range but I’m sure that will increase. For reference I read this link https://defensefeeds.com/analysis/how-do-fiber-optic-drones-work/
Wondering the same thing myself
Ukraine has had a lot of success using remotely operated suicide drones. They are cheap, built mostly from off the shelf hobbyist grade components, but with a few inexpensive upgrades the signal goes for miles. Strap a grenade on the bottom or any kind of bomb with an impact fuse and you have an excellent remote control weapon.
So of course the Russians start deploying radio jammers to block the drone signals.
The solution to this is fiber optics. The drone carries a giant spool of hair thin fiber optic cable which sends control commands from the operator and video back from the drone. Because it’s a cable, it’s immune to jamming.
The cable is insanely thin, usually in the tens of microns thickness. So they don’t bother recovering the cable, drone flies out spooling out cable behind it, hits its target and blows up, operator just detaches that fiber and pulls out another drone with another spool of cable to start again. This leaves tons of little fibers laying around on the countryside because every drone leaves one in its path.
That’s the point of this video. Most of those fibers have a dead Russian soldier at the end of them.
This link explained a lot for me
https://defensefeeds.com/analysis/how-do-fiber-optic-drones-work/
tl;dr: drones can be tethered by fiber optic cables. The cable provides jam-proof communication between the drone and the operator; and it also supplies power to the drone so it doesn’t need a massive battery pack and can stay airborne longer.
Fiber optic cable can’t supply power.
They could if it was a copper wire, but then it’s even heavier.
According to the article:
In the case of drones, the fiber optic cable provides a direct, stable, and high-capacity link for both power and data transmission. […] The fiber optic cable also supplies power to the drone, meaning the UAV doesn’t need a huge battery onboard.
Maybe this is why we shouldn’t have AI write articles. Does the drone have a solar panel on the other end of the cable?
I have to imagine the article is just wrong about this part, but maybe there’s something I’m missing.
Power Over Fiber “is a technology in which a fiber-optic cable carries optical power, which is used as an energy source rather than, or as well as, carrying data”.
Sadly, the article has been written by a non-competent person.
I can claim to be a competent person and explain a bit.
At a drone’s own voltage (4…8 lithium cells in series), powering an FPV attack drone requires 2 wires of 2,5 - 4,0 square millimeters of thickness. One meter of this pair of wires weighs about 50 grams. One kilometer would weigh 50 kilograms, but would exhibit a voltage drop proportional to length, so in reality, you’d need to increase the diameter several times.
If one was into physical experiments, using super high voltage and thinner wires, this could be brought down, but voltage converters on both ends would gain weight and insulation thickness would have to increase: as you raise voltage in an electrical cable (e.g. into kilovolts) current starts arcing across air gaps and breaking though insulation. That’s why high voltage power lines have long ceramic / glass insulators. :) So building a hypothetical “330 kilovolt drone” would be the last thing anyone would do. :)
Thank you, that was helpful.
