Yet again, the Pentagon has grounded the V-22 Osprey tilt rotor.
This is the 3rd grounding in about 1½ years, and there are a lot more.
For an aircraft that has been in service for almost 20 years, this is not a good thing.
It has always had maintenance issues, a susceptibility to vortex ring state, is unable to autorotate, and has a highly restricted flight envelope. (This is one of the reasons that Israel ended their consideration of the type)
There are other technologies that deliver similar ranges, albeit at slightly slower speeds and have few, if any of the tilt rotor's vices.
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