NLR plays a significant role in rotorcraft certification, offering extensive expertise and support for both military and civil aircraft certification processes. 🚁 NLR's expertise in rotorcraft certification is backed by various certifications and qualifications, including EASA - European Union Aviation Safety Agency Qualified Entity status, Part 145 Maintenance and Modification approval, and Part 21 Design Organisation Approval (DOA). As an example, NLR has supported Hindustan Aeronautics Limited (#HAL) in India by conducting an independent review of the Advanced Light Helicopter (ALH) main rotor upper control system. The ALH is a 5.5 tonne helicopter developed by HAL for both civilian and military use. The request for a review followed a series of incidents/accidents with the ALH helicopter and additional expertise and advice was sought to identify possible areas of improvement/modifications in the design. The project lasted six months, divided into three periods. During the first period, HAL informed NLR about the design of the main rotor system, provided relevant information about the incidents/accidents that occurred, and submitted additional requested documents in consultation with NLR. In the second period, the available main rotor upper control system design information was thoroughly checked by multiple experts with reference to design, analysis, testing and manufacturing. Finally, a report containing the NLR findings and advice was submitted to HAL. The investigation has provided an independent verification of the modified ALH main rotor upper control system design. This was the second successful project of this magnitude between NLR and HAL. Back in 2016, NLR carried out a review of the main rotor system of the Light Utility Helicopter (LUH). For more information about flight safety, please go to our website 👇 🌐 https://lnkd.in/eqeqJPeT #safetyfirst #helicopter #certification 📷: HAL
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