L-159A (callsign BUTCHER 51) from 212. tl / 21. zTL Caslav is taking off into "Shadow Wave" sortie during exercise "Sky Avenger 2018". C/S remember Spitfire Mk.VB AD572 DU-C of the 312. sq. RAF, which flew czechoslovak WWII ace gen. Frantisek Perina.