Help needed with CRP-5 questions!!
Im stuck on these two questions:
An increase of 0.15 in Mach No results in an increase of 93 kt in TAS. If the temp dev from ISA is +9 c, the FL is??
a. FL200
b. FL220
c. FL130
d. FL150
I know the correct answer is b FL220, but im not sure how to work it.
Also I'm stuck with this one,
An aircraft is flying at 1100 kt TAS at FL650, a change of 0.1 Mach causes a change of 57 kt TAS. The temp dev from ISA at FL650 is?
a. -6 c
b. +6 c
c. -3 c
d. +3 c
The correct answer is -3
Again not sure how you work it out, any pointers greatly received!! Thanks!