otorcraft blades are some of the most complex purely mechanical items on a helicopter. They might appear as


WATCH


a Maintenance Team


Install Blades on a Bell 407


a seamless piece, but their construction comprises myriad components, shaped and joined, inspected and tested. The end result must be able to endure a range of environments and abuse, survive being flung around a hub hundreds of times per minute, twisted up, then down at that same rate, while supporting its share of an aircraft ranging from less than 900 to over 120,000 lb.


48 ROTOR SEPTEMBER 2022


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