Sources: NPR, Congressional Research Service
quote: Yes, and I found (and cited) some experimental results in a post down below. The energy from this laser is MORE than enough to damage the UAV. Also, judging by the fact that they are actually shooting them down in tests would indicate that all the arm chair quarterbacks are "kind of wong" when they say it can't be done. LOL
quote: LMAO!!! Dude, you didn't even read the post! You're just saying things you think sound "sciency" or something.
quote: was talking about a lab experiment and the actual, measured energy to melt polished aluminum (another person claimed polished aluminum would shield the UAV). And even assuming only 5% of the laser's energy was delivered to the target, it was still 2,500 times MORE energy than was needed.
quote: This test was very favorable for the laser. It was a clear day, the drone was painted in a dark color, the lens on the laser wasn't coated with salt (pretty hard to maintain on a ship that's in the ocean), etc.
quote: With the BIL operating the COIL laser is engaged and a multi-MegaWatt beam of 1.315 micron infrared radiation is put on to the target. In a viable engagement scenario, this would lead, within seconds, to the breakup of the target missile.
quote: But we're clearly miscommunicating on which thread we're debating. However, that was just a mix up so I do apologize for calling you a liar.
quote: And I'll answer your post below regarding the J vs kW. I know the difference between energy vs power...note I said J/s and was "skipping ahead" mentally to figure out the total amount of heat energy put into the target for a few seconds while they had the laser on it.
quote: Overall, I don't understand why you insist this can't be done. As you said, this is not your direct field and the guys who are doing it for a living did all the calculations and they've done sea trials, as well as desert trials and it has been working. If they didn't think 33kW was enough energy, it's not like they couldn't have made it 500kW or something.
quote: Geez, the paper is riddled to references of the melting point and the boiling point of various samples in ranges of between .5-15 J/CM^2 and you think they're using a 200MegaWatt laser?
quote: And yet you want to claim they're using a "200MW laser" to melt microscopic, SINGLE CRYSTAL, samples in a lab??? Are you even smart enough to be embarrassed by the shit you say??? It would vaporize that sample you ASSCLOWN.
quote: >660W is more than enough to melt the highest melting point metal, I can say that with 100% certainty.
quote: For example, if the red laser doesn't work, use the blue laser. Now it would double the cost of the laser, but since it is such an easy way to defeat an engineered reflective coating, it would probably deter the use of reflective coatings.
quote: Thirdly, such laser mirrors are used in CLEAN environments. Dust on a mirror or lens under a 33kW laser can be catastrophic.
quote: The video above shows the laser taking a few seconds to do its damage, so if the drones can spin, dive, barrel roll around for an extended amount of time, it might achieve it's goal.
quote: Only the big laser is used to shoot down the target. The other ones are used for optics correction.
quote: Or dried up salt on the lens.
quote: It looks like it took around 3 seconds to shoot down a dark gray drone that didn't attempt to maneuver. Apply a coating that's reflective in the IR spectrum and try it again. It would probably take 20x as long.
quote: In fact, weather at the Ochsenboden Proving Ground in Switzerland where the demonstration was carried out included ice, rain, snow, and extremely bright sunlight – far from ideal.
quote: The laser modules are 30 kW and 20 kW, but a Beam Superimposing Technology (BST) combines two lasers to focus in a “superimposed, cumulative manner” that wreaks havoc on its targets. First, the system sliced through a 15mm- (~0.6 inches) thick steel girder from a kilometer away.
quote: the laser’s ability to track a very small ballistic target was demonstrated. It honed in on and destroyed a steel ball 82mm in diameter traveling at 50 meters per second.
quote: Paint would heat up, blacken, catch fire and not be white anymore. Laser punches straight through, destroying the target.
quote: All the test were in the desert under good conditions. They need to try it out in the rain.
quote: Testing in rain doesn't make a lot of sense as I see it, as hostile forces are unlikely to launch small fragile UAVs with sensitive imaging equipment onboard during a storm.
quote: Why go for such an expensive solution?
quote: Of course, blinding the pilots of a commercial air-craft would be a very likely event once you start using lasers on a regular basis, and a lot of satellite-based cameras with their large magnifications might also get destroyed by stray high-energy laser pulses.
quote: The high-power infrared laser onboard the most recent model operates at 33 kilowatts and consists of 6 separate solid-state lasers focused on the target.
quote: On the other hand, a non-stealth UAV that can send a video-stream can probably be built for about 1k$, so you don't care all that much about loosing them. And if loose a drone, it is pretty much proven that the attacking ship was not a decoy.
quote: And the laser will have limited power on a non nuclear powered ship.
quote: If all goes well, those real world shoot-downs could occur as early as in the middle of next year.