The technician Yavuz SIRAY built, in the years 1981-1989, the three-seat sports aircraft SIRAY 1-TX
in his garage at Kayseri. The aircraft received on 14.10.1989 the Turkish license. The SIRAY 1-TX is still used among other things for advertising flights. Meanwhile the airplanes original 95 hp Continental C-90 engine is replaced by the 135 hp Lycoming O-290D2 engine.