thermostat,
2.8 degrees too flat, that is crap...
note that criteria max GPA for CAT C is 3.6 and CAT D is 3.1 degrees MAX!
For CAT D, we use 2.8 as the standard...
With baro-vnav, the min effective GPA is 2.5. That drives where you see the NA below temp, with 3.1 driving the NA above temp.
MLS never took off because the accuracy of the typical system is not much better than GPS. Heathrow has a custom system, and is used instead of the ILS in low vis situations...but its still DME/Precision.
The US no longer has any MLS procedures on the books...
Last edited by FlightPathOBN; 15th September 2012 at 19:35.