According to ‘Alert 5‘ news blog, these drones are commercial off-the-shelf SKY-09P models made in China, by Taiyuan Navigation Technology. Based on the manufacturer’s data this mini-drone is launched by a catapult and retrieved by parachute. It can carry a payload of 3 kg on a 90 minute mission, controlled in flight over a distance of 30-40 km. The company also offers a larger variant, SKY-19 that can fly for two hours and carry 5kg of payload.
The mini drones operated by North Korea over South Korea are the SKY 09 made in China by the Taiyuan Navigation Technology company. The models operated by North Korea was equipped with a muffler, to reduce the drone’s acoustic signature.
Read more on the drone incursions over South Korea