Originally Posted by
Sorry Dog
It's a little hard to tell from only 2 picture angles but it almost appears the remainder of the engine nearly fell off after the event. The entire assembly appears torqued around the pylon with the pylon starting to crumple from the force. It all depends on how quickly the remaining rotating assembly stopped but it's easy to imagine that torque being in 10 thousands plus of foot pounds. Then you have to think about the wing structure the pylon is tied to...
On an engine missing ferry, I would wonder if a ballast load is needed to keep the same general flutter margins. The first 74's needed DU weights on the outer engine pair to pass flutter test in certification.