L-39NG, test in progress

L-39NG test progress
Aero Vodochody L-39NG makes a low pass during NATO Days 2019 in Ostrava, CZ.

After undergoing a series of demanding ground tests, first L-39NG full prototype resumed an intense flight test program. Currently the market offers good demand for trainer and light attack jets and the Czech aerospace company Aero Vodochody does not want to miss any sales opportunity.

"The L-39NG program is running on schedule, which is good news for our customers. We have a very clear program of flight and ground tests and subsequent certification. I am absolutely confident that we will receive the type certification for full trainer configuration in the third quarter of 2020 and the light attack version in the third quarter of 2021," said President and CEO of Aero Vodochody Dieter John.

Three aircraft in total support L-39NG flight test program. Technological demonstrator (L-39CW) with the same engine, avionics system, and configuration has started L-39NG flight testing in March 2019. Technological demonstrator was undergoing intensive avionic test, and Stall and Spin investigation. The first full prototype 7001 started pitot static and basic performance testing in September. The aircraft with manufacturing serial number 7004 will join the 7001 in flight testing before end of this year. All three flying test aircraft shall complete full L-39NG flight test campaign in summer 2020. After that, aircraft 7004 will finalize certification flights for Full Trainer configuration type certificate in Q3 2020, and 7001 will advance to reconfiguration to light attack version and shall complete its flight test program end of summer 2021 and receive Light Attack type certification on Q3 2021.

During the second quarter of 2019, flight prototype with production serial number 7001, presented at NATO Days, underwent ground vibration testing conducted together with Czech Aerospace Research Centre. The tests have been carried out also with installed weapons and therefore they are valid also for Light Attack version. At the same time, the ground static strength tests on prototype 7002 are continuing; at the turn of the year, ground fatigue tests will start on prototype with serial number 7003.

The company says that the L-39NG will be the only one jet trainer on the market with complete syllabus from basic training to advanced and LIFT training.

Source, Image: Aero Vodochody

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