 The Ukrainian Air Force claimed it has shot down 10 Russian warplanes in 10 days, 9 of the Russian Air Force's best Sukhoi Su-34 and Sukhoi Su-35 fighter bombers and also a rare Beriva 50 radar plane. The Forbes wrote this. It is noted that this is many, many more warplanes than the Russians can afford to lose in a little more than a week. Hamstrung by foreign sanctions, the Russian aerospace industry is struggling to produce more than a couple of dozen new warplanes a year, all that is to say, the Russians are losing jets 20 times faster than they can replace them, the Ukrainian Defense Ministry announced this month's 9th and 10th shootdowns, both involving Su-34s, on Tuesday. Oops, we did it again, the ministry quipped. And now it's 10 destroyed Russian planes in 10 days. How the Ukrainians are shooting down so many jets is unclear. It's possible the Ukrainian Air Force has assigned some of its American-made Patriot missile launchers to mobile air defense groups that move quickly in close proximity to the 600-mile front line of Russia's two-year wider war on Ukraine, ambushing Russian jets with 90-mile range-packed two missiles then swiftly relocating to avoid counterattack. But the distance at which the Ukrainians shot down that F-50 on Friday, 120 miles or so, hints that a longer-range missile system was involved. Perhaps a Cold War vintage S-200 that the Ukrainian Air Force pulled out of long-term storage.