Airbus limits autoland to 3.15 degrees for A340/A330, however, we do a VOR approach into Kathmandu at 5.8 degress(yes, minus 5.8 degress), at 10 DME, 9500ft and a 4 DME we reduce to 3.5 degrees. We start off at 138 IAS, and sometimes have it increase to 170 on the way down in an Airbus A330. This is not easy, but lots of things are considered, but I would hate to try it on an ILS, as there is no reduction in angle to slow down.