This aircraft is something of a puzzle from a registration point of view. The OK-IRI registration was never carried by c/n 0829 according to any record I can find. Instead, I've found record that c/n 0829 was registered as OK-IRT in February of 2019, though I can find no photos at all of any aircraft type with the OK-IRT registration. OK-IRI is currently assigned to a Cirrus SR-22 (since March of 2022). Prior to that it was on a Cessna 560 (May to December of 2015). From May of 1978 to April of 1987, that OK-IRI registration was assigned to a Zlin Z-50.