The L-39NG light jet successfully completed the fuselage strength test at the Czech Aerospace Research Centre (VZLU).
A successful static test can be considered as an important milestone on the road to full certification of the aircraft.
The L-39NG is capable to serve in a role of light attack and/or unified, comprehensive training system for modern air forces.
The purpose of the tests was to verify the strength of the airframe according to the requirements of the European military regulation EMACC. During previous tests, the fuselage was loaded by bending, by inertial forces of the engine and also by forces from the horizontal tail. The last realized test represented the most critical case, it is the combined bending load of the horizontal and vertical tail.
In this test, the aircraft fuselage was loaded to the limit load at first, corresponding to the maximal possible aircraft load in flight, where no permanent deformation of the fuselage has been noted. Subsequent load to ultimate load (150 per cent of the limit load) was performed and the fuselage was intentionally loaded with higher forces leading to a structural failure that occurred at 110 per cent of the ultimate load. The difference between the ultimate load and the limit load represents in aviation worldwide the standard safety factor of 1,5.
Tests of a similar scale are carried out in the Czech Republic especially when a new type of aircraft is being certified and their preparation usually takes months, sometimes years. For each aircraft it is necessary to design a unique method of experimental verification of airplane properties. Therefore, this was an important event for the employees of the Czech Aerospace Research Centre.
David Novotný from VZLU notes: “The intention of the test was to withstand the load corresponding to the maximal ultimate load. This proved the strength of the structure. During the test we have reached 110% of the ultimate load, then a deformation appeared, which disallowed further continuation without the risk of destroying the fuselage. At the same time, we have achieved the necessary failure mode and the structure proved the appropriate reserve for future aircraft development. Therefore the test was successful.”
The path of the second prototype in VZLU is not finished yet. The fuselage number 7002 will undergo further tests. “We will continue with pilot seat hinge tests and the test of engine bed in the forward direction, which is actually an emergency case,” adds David Novotný.
As part of the L-39NG certification, another important step has been taken. But the whole process is not completed yet. “Now we have a campaign to examine the wing limit states, then we have another partial test and at the moment we are basically launching a campaign of fatigue experiments at VZLU, which is another big part of the certification process,” concludes Pavel Henzl from Aero Vodochody.
The L-39NG is a joint project of two private companies, the largest Czech aerospace manufacturer AERO Vodochody AEROSPACE and its strategic partner, business and military manufacturing company OMNIPOL.
VARD, a subsidiary of the Fincantieri Group based in Norway, secured a contract to construct two Commissioning Service Operation Vessels…
Leonardo announced the finalization of an agreement to sell its Underwater Armaments Systems (UAS) division to Fincantieri on Thursday. “The…
General Atomics Aeronautical Systems, Inc. (GA-ASI) is partnering with Shift5 to integrate the company’s onboard cyber anomaly detection and predictive…
The Malaysian Ministry of Defence (Mindef) has finalised 40 agreements totalling RM7.3 billion, encompassing seven contracts valued at RM1.90 billion,…
Leonardo, an Italian aerospace company, and the Ministry of Defense of Malaysia (Mindef) have marked a significant milestone during the…
Turkish land systems manufacturer Otokar is displaying its Cobra II and Akrep II armoured vehicles at DSA. The Cobra II…
Systems Engineering & Assessment (SEA), a technology company based in the UK, proudly displays its advanced decoy launcher Ancilia, at…
The Czech Republic’s Excalibur Army has its debuts in the ongoing show. The company is bringing a few small scale…
Turkiye’s Secretariat of Defence Industries (Savunma Sanayii Başkanlığı-SSB), has two main objectives: modernization of Turkish Armed Forces, and establishing&developing a…
Malaysian company, Smart Weapon Storage Inntech Sdn Bhd (SWS), which has been around for 20 years, aims to extend its…
“We will continue to provide tailored solutions to our customers,” said Cem Altinisik, FNSS Corporate Communication Manager in an interview…
Tony Chegwidden, the Director of Business Development International at EDGE Group, is sharing his thoughts regarding the group’s focus and…
Boeing has advanced its manned-unmanned teaming (MUM-T) technology using a digital F/A-18 Super Hornet and MQ-25 Stingray. The testing shows…
Malaysia’s Lumut Naval Shipyard Sdn Bhd (LUNAS) inked a Memorandum of Understanding (MoU) with Indonesian shipbuilder PT PAL Indonesia at…
Prime Minister of Malaysia, Datuk Seri Anwar Ibrahim, attended the unveiling of MALVUS SENSE SDN BHD’s CW-25H, a significant development…
KNDS France which is the main provider of artillery systems for the Royal Malaysian Army and a strategic industrial partner…
The upcoming 10th edition of Indo Defence 2024 Expo & Forum, renowned as one of the foremost international defence industry…
Malaysian firm MILDEF International Technologies unveiled its new Tarantula, 4x4 High Mobility Armoured Vehicle (HMAV) at the ongoing DSA. Also…
Nurol Makina and Nadicorp (Badanbas) are showing their NMS 4X4 armoured vehicle in Royal Malaysian Army camouflage for the first…
South African defence firm Denel is presenting its portfolio of guided weapons and land defence systems at the show. “Denel…
The Malaysian armed forces are accelerating their procurements of modern military equipment in their quest to transform their combat capability.…
PT Dirgantara Indonesia (PTDI) is currently participating in the Defense Services Asia (DSA) 2024 defence exhibition, scheduled from 6th to…
The French defence company and a leader in ground mobility solutions, Arquus is showcasing its proven range of defence and…
Tell me about Cendana Auto, and the products that you're featuring here? Cendana Auto is 100% a local Malaysian company,…
Thailand’s defence land system company, Chaiseri, is bringing three of its First Win (FW) series armoured vehicles to the show.…
Turkish weapons company Roketsan is showcasing its broad range of missile equipment at the ongoing show including its new generation…
Malaysia will buy 10 AN/AAQ-33 Sniper Advanced Targeting Pods from the United States. The proposed sale will improve Malaysia’s capability…
As far as high-profile visits go, this one was right up there on the list. After speaking at the opening…
Malaysia’s Weststar Defence Industries has partnered with International Armored Group (IAG) to display the IAG Guardian Armoured Personnel Carrier (APC)…
Singapore Minister for Defence Dr Ng Eng Hen’s presence at the ongoing show and his meeting with Malaysia's Prime Minister…
Headquartered in Singapore with reporters spread across all major regions, GBP Aerospace & Defence is a leading media house that publishes three publications that serve the aerospace and defence sector - Asian Defence Technology, Asian Airlines & Aerospace and Daily News. Known industry-wide for quality journalism, GBP Aerospace & Defence is present at more international tradeshows and exhibitions than any other competing publication in the region.
For over three decades, our award-winning team of reporters has been producing top-notch content to help readers stay abreast of the latest developements in the field of commercial aviation, MRO, defence, and Space.
Copyright 2024. GBP. All Rights Reserved.
Home Defence & Security Space Commercial Aviation Maintence Repair & Overhaul Daily News Events About Us
2024 GBP all rights reserved.