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Originally Posted by ASWnut101
3) if you look at pic #2, see the straigt blades behind the destroyed ones? (The straigt ones don't spin.) They are untouched.
As for the story on seatbelts: Bull****. The blades move so fast, (very roughly ~15,000 rpm) that the seatbelt would tear itself apart, not only from being flung off the blades by cintrifugal force, but beat into subbmisison by the wind speed. There's also the matter of engine heat on the ground, and -50 F cold temperature at 36,000 ft.
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The straight ones are called "stators".
If the object is long, such as a chain, it will knock the hell out of the majority of blades. Some fragments will sheer, causing damage to the rest of the blades. So a nylon seat belt with a buckle
would rip the heck out of the blades like that. And that's just the forward fan blades. They don't turn all that fast (commercial planes use a low-pass design with slower blades). Their job is to pass air at operating altitude, and to suck air when the plane is taxing around on the ground. There's several pair of compressor blades further back, and
they're going to look even worse.:rotfl:
There were four engines on the plane. Only three were functional, the one looks like hammered dog stuff, and the rest had a lot of blade nicks because they were also swapped out but didn't make the headlines. The guy writing the article didn't quite understand that those straps weren't there intentionally. They were not some form of maintenance -- those straps were on a seat belt that went down the intake, including the buckle.
However,
the survivability of those engines is what is remarkable. No one died, the poor German guy on the ground crew who saw and reported the engine damage was probably white as a ghost (no one ever considers the emotional state of the ground crew after finding something like this), and this plane had flown non-stop for at least 1500 miles.