Originally Posted by
Uplinker
As I understand it, the weight and forces from underslung gas turbine engines, on today's passenger jets, are transmitted to the wing with just two pins. They are big pins though.......
Usually, turbofans are attached via a combination of bolts (which taken mainly vertical and static loads) and shear pins (which take thrust loads, and are designed to release the engine in an impact).
The 737NG, for example, uses eight bolts and three shear pins:
