Originally Posted by FluidFlow
fig 62(a) This graph too is for normal humidity but you can see the trend of decreasing G with added moisture ('saturated air' in this case).
Ian,
I'm not sure I understand the issue you're raising. Air is (nearly) saturated in all clouds, so what's special about this one? If you're thinking of liquid or solid water, is there any data on that?
Secondly, the graph you're referring to shows 0,4% change of gamma for saturated air. Let's consider FL350, M=0,8 and gamma changes rapidly from 1.4 to 1.33 (5%). A simple calculation shows that pitot pressure would increase by 0,3% and the indicated Mach would increase from 0,8 to 0,8032.
regards,
HN39