In 2007 Jirmus was flying commercially for Travel Service Airlines.
Achievements
He is notable for his achievements as an aerobatic pilot, winning the FAI World Aerobatic Championships in 1984 and 1986, being two-time winner of the FAI European Aerobatic Championships (in 1983 and 1985) and Sportsperson of the Year (Czechoslovakia) in 1985.
