I think the talk of landing ahead if engine fails, is actually a case of if you have an engine failure just after vr and runway permits you may elect to land back on, however you need to consider you will be at takeoff flap and not land and potentially below speed. I don't think the above posts mean land ahead regards of Terrain. Even a mtow it should climb away on SE or at least maintain height, but this is solely reliant on the engine being feathered , whether by an autofeather or Manually..