RUSSIA'S RADICAL NEW FIGHTER Russia’s fabled Sukhoi Design Bureau builds the S-37, a 21st century fighter to go head-to- head with our F-22. By MALCOLM V. LOWE Photos by Katsuhiko Tokunaga/DACT and courtesy of R-Avix; Illustration by John Batchelor A bold, new combat aircraft designed by the legendary Sukhoi Design Bureau and now undergoing tests in Russia has taken aim at America's next-generation fighter, the F-22. The Russian challenge comes in the form of the single-seat Sukhoi S-37, the world’s first combat aircraft to successfully exploit forward-swept wing (FSW) technology. First word of the S-37 leaked to the West...