Vranov nad Dyjí Helicopter Encounter

On July 12, 1987, a crew of the 51st Helicopter Regiment from Božice airfield received orders to intercept an unidentified object detected by ground radar near the Austrian border. Captain Čestmír Tesařík, Lieutenant Ivan Pospíchal, and Lieutenant Milan Šero climbed to 3,500 meters as ground control called out rapidly decreasing distances. At 200 meters, Pospíchal spotted a dark, cigar-shaped object passing overhead. When ordered to open fire, the crew found the target consistently maneuvered toward the sun to evade targeting, while remaining above the tourist-crowded Vranov Reservoir — making engagement impossible. Two L-39 Albatros jets scrambled from Brno continued pursuit as the object traversed a path near the Dukovany and Jaslovské Bohunice nuclear plants before vanishing from radar over Bratislava. The entire observation lasted approximately 2.5 hours. Pilot calculations estimated the object's speed between 60 and 2,700 km/h. After landing, the crew received orders to destroy all flight records and radio transcripts. Tesařík later rose to the rank of Major General in the Czech military. The incident was documented in Lieutenant Jaroslav Špaček's regimental history published in 1998.