What is the typical approach speed of the MD11? Can't be much faster than a 737-800 above 60 tons.
Normal approach speed for a flaps 35 landing at max. landing weight (=222.9t - quite common during freighter ops) is around 168kt.
For 200t take 160kt, for 180t it's around 152kt.
For a flaps 50 landing substract 5kt from the flaps 35 speeds.
All speeds given are without any correction for wind, gust or windshear. Depending on the wind, the corrections applied on the approach speeds given above can be as high as 20kt.
Regards,
DBate