Mad Scientist,
Any chance you can comment on the reason Bombardier will use SAT to determine icing conditions and the requirement to use anti icing bleed air (lear 45, between +10 and -40 deg C) while Dassault uses TAT (Falcon 50, at or below +10 deg C). Both use compressor air to warm the wing leading edge
Seems SAT sounds safer, since TAT can often be greater than 10 deg C yet SAT is well below 0 deg C. Yet Dassault can hardly have had any problems in 26+ years of Falcon 50 ops, or they'd have made changes to the AFM.
And with very similar engines, Dassault uses the Honeywell 731-3 engine and TAT, Bombardier uses the newer Honeywell 731-20 engine, and SAT.
Hawk