Arirang News has video of one of the suspected North Korean UAVs (unmanned air vehicles — we didn’t say “drone” in the Army) that crashed on Baekryeong Island.
The other UAV, which crashed near Paju City, tells a more interesting story. Arirang and the Joongang Ilbo suggest that it was on its way back from scouting higher-profile targets:
Images found on the camera showed that the drone had followed a route from central Seoul through the Gupabal area in northeastern Seoul to Paju. It took photos of major landmarks in central Seoul, including the Blue House and Gyeongbok Palace, which are close to each other. [Joongang Ilbo]
That’s a round trip of 50 miles or more, but after all, a man once flew a model airplane across the Atlantic Ocean, so it’s certainly possible. The image resolution was reportedly poor, possibly due to excessive vibration.
Via a commenter, Josh Marshall publishes imagery of the Paju UAV’s very different design and very similar paint scheme. Like most giant-scale model airplanes, it is powered by a one-cylinder, probably two-stroke piston engine with a large muffler sticking out the side (it would still be very loud). Unlike the Baekryeong UAV, it has a low aspect ratio wing. Low aspect ratio wings have more induced drag (caused by wingtip vortices), so they have shorter ranges. Their main advantage is their low takeoff and landing speeds, which means they can be launched by hand or catapult, and recovered in a net. No airfield would be required. An off-the-shelf digital camera is mounted in the fuselage.
Although North Korea is the prime suspect, all of this technology is commercially available and could have been built by almost any curious person with a budget of $2,000. The greatest technological challenge in UAV design is finding a way to control it for ranges over five miles. This could be done by long-range radio signal over an unused frequency, with a satellite-boosted signal, or by using GPS to navigate it to pre-set waypoints.
Marshall sneers at the design of these UAVs, but they aren’t designed to look scary or carry heavy payloads. But what are they designed to do? Superficially, one might guess that they’re designed to gather clear images and coordinates of potential targets. In this case, however, the imagery was reportedly of low quality, and in any event, one can find the precise coordinates of the Blue House on Google Maps or Google Earth (a skill that North Korea hadn’t quite mastered in 2012, when it threatened to shell the offices of South Korean newspapers, while actually giving the coordinates of the Australian Embassy and other errant targets).
That leaves the real purpose unexplained. If a curious citizen or eccentric hobbyist built it, then “just for the hell of it” or “because it’s there” are perfectly good answers. If the North Koreans built it, the only purpose I can think of would be to show the South Koreans exactly what potential targets the North Koreans are interested in, just two months before the next bi-election.
North Korea was removed from the list of state sponsors of terrorism on October 11, 2008. Discuss among yourselves.
There are a lot of places in North Korea that I’ve always wanted to see in high resolution. A UAV seems like a great way to get that imagery. Sometimes the North Koreans give me such interesting ideas.
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Update: The Joongang Ilbo publishes two in-depth reports on this story, estimating that the UAV likely cost just under $10,000, reporting that it was GPS-guided, and also reporting that its imagery was of better quality than first reported.
A reader also wrote in to point out that North Korea has other, scarier-looking UAVs with actual scary warheads.
“The drone appeared to be a North Korean copy of a Raytheon MQM-107 Streaker target drone,” the report said. “North Korean press coverage of the event described the UAV as being capable of precision strikes by crashing into the target.”