Help!
I tried to answer this question using a CRP5 and keep getting -19 degrees centigrade.........
You are flying in a Standard ISA atmosphere at 30'000 at Mach 0.84 what is your ISA TAT?
Now if I use the formula TAT=SAT(1+0.2kMsqrd)
SAT = 15-(30 * 2)= -45 in Kelvin = 228(1+0.2(1)((0.84)sqrd))=260
so 260-273 (I'm assuming a perfect probe for value k=1)
I get -13 degrees centrigrade.........can someone talk me through doing it on the CRP5?
Thanks in advance,
BUDGIE