Varga RMI-1 X/H
The Varga RMI-1 was a twin-engine turboprop-powered aircraft designed by Hungarian engineer László Varga, and the world's first turboprop aircraft. It was a fighter-bomber intended to test the new turboprop Jendrassik Cs-1 aero engine. Wikipedia
First flight: Undertook taxiing trials and high speed runs, but was not flown before it was destroyed