The fatigue test of the L-39NG jet aircraft, proving the service life of the new airframe in the length of 5,000 flight hours, has started in the Czech Aerospace Research Centre (VZLÚ).
The new light jet trainer aircraft L-39NG from Czech aircraft manufacturer AERO Vodochody AEROSPACE a.s., opened the flight envelope up to the full range of expected heights and speeds by completing another series of flight tests. Based on the results, maximum speed of 490 KCAS / Mach 0.8 was permitted and maximum ceiling of 38,000 …