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Surviving with a broken pitch link
Hi,
I am wondering what the consequences of a broken rotating pitch link of a = 4-bladed rotor will be. From my understanding, the free-to-pitch blade will eventually come to a high angle of attack that the airloads will crush its structure and if not the debris will destroy the other rotor blades, the centrifugal forces of the out-of-balance rotor with the remaining blades will destroy the rotor head and/or the gearbox. On the other hand I've seen some FMEAs that say that a broken pitch link will "only" cause "severe vibration" with "land ASAP" consequences for the ship. Any opinions on that (I hope not, made by own experience) ? Oliver |
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