Russian Jet's Downing a Rare Fate for Stray Fighter Planes
- Common radio channels allow for communication between planes
- Scrambled pilots use hand signals to tell intruders to leave
Putin: Won't Tolerate Crimes Such As Warplane Crash
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Every year, hundreds of warplanes stray into disputed airspace. Getting shot out of the sky like the Russian jet downed Tuesday by Turkish forces is very unusual.