Originally Posted by
tdracer
One example I'm familiar with is you could potentially provide additional protection by putting critical engine components (FADEC, oil tank, that sort of thing) always on the outboard side of the engine - if the cross engine debris goes through the engine to take out the component, that engine is dead regardless.
Maybe I'm just slow today, but I don't get how placing them outboard reduces the risk. If the rotor gives, the engine gives, and it doesn't matter if the FADEC is hit. Putting the FADEC inboard might even reduce the energy of the shrapnel a little bit. Now, the oil tank, I would prefer to put outside the plane of rotation just for the fire hazard it represents.
Is Kevlar plating the fuselage in the plane of rotation practical in any way?