The 211th Tactical Squadron of the 21st Tactical Air Base in Čáslav operates 12 single-seat JAS 39C Gripen fighter jets and 2 JAS 39D Gripen two-seat trainers. The Gripens were leased in 2005 to replace the outdated MiG-21s. The first six JAS 39s were delivered in April 2005, the delivery of all ordered aircraft was accomplished …