Synthetic vision systems were created by NASA and the U.S. Air Force back in the late 1970s to improve cockpit situational awareness, especially when operating in reduced visibility at low altitudes.

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Small airplanes flying today already are equipped with sophisticated gear that just a few years ago was available only to airline or military pilots: terrain warning systems, synthetic vision, direct GPS navigation, and more.

FORBES: Will Your Next Airplane Be A Drone?

Along with Tobias, fellow Ukrainian Antonina Yefremova was charged after synthetic testosterone was found in their systems, while Bulgaria's Inna Eftimova tested positive for a synthetic growth hormone.

CNN: Nine athletes banned for doping offenses