"Apparently you can get a 787-800 in there
Flying over it yesterday and the FMC seems to think it could cope with the glide angle (but not the go around gradient). The Performace suggests that at 185,000 tons with a five knot tailwind Max Autobrake would stop you going off the end. Still suspect you would need speedbrake to prevent acceleration down the slope? "
If you really flew the 787 you would know its not a -800 and the FMC is only programmed with the relevant data from Jepps or Lido - just because its in the box doesn't mean you can fly it......