February 18, 2021: Russia now has an armed Predator-type UAV called Orion, a one-ton UAV with a 200 kg payload and 24-hour endurance. In 2018 an armed version (Orion-E) was revealed but it did not actually fire a Hellfire-type missile until the end of 2020. The Russian missile is the S-5Kor, which is similar to the American APKWS, a smaller laser guided missile that replaces of supplements Hellfire on many helicopters and fighter-bombers. Orion was revealed in 2017 but did not officially enter service until late 2019 and did not actually combat zones until early 2020. The main reason for the delays was unreliable engines. That delayed availability for several years and apparently that engine problem is not entirely solved yet.