Former ejection seat test bed, mostly as OK-016. Built in 1964 and delivered in 1965. Last flight in May 1997 with some 1350 hours and 3050 landings on the airframe. Brought here in smart VZLU livery with serial 0816, early August 2012. Later mostly grey and by 2017 these hideous colours started to be put on. The wording Svět Techniky Ostrava and S-T logo on the nose indicate the location: the Science and Technology Centrum at the old steel furnaces in Ostrava-Vítkovice.