An analysis of the UK CAA's world wide helicopter accident data indicates that transmissions accounted for 22 percent of potentially airworthiness related accidents in civil helicopters of more than 4550 kg gross weight. An evaluation is made of design and technology advancements over the last decade which should benefit helicopter transmission safety and reliability. These encompass improved steels with superior fatigue performance, S/N curve refinement, computer aided design analysis systems, CAD/CAM, improved lubricants and filtration systems, and expert systems retaining a collective memory with regard to design practices' relationship to service experience.
Helicopter Transmissions: Design for Safety and Reliability
1990
34 pages
Report
No indication
English
Aircraft , Transportation Safety , Air Transportation , Helicopter design , Helicopter propeller drive , Reliability engineering , Safety factors , Transmissions (Machine elements) , Aircraft accidents , Aircraft reliability , Computer aided design , Computer aided manufacturing , Design analysis , Expert systems , Lubricants , Foreign technology
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