Question raised 3 days ago by
bubbers44:
They were cruising at M .80 at FL350 so how much static pressure change with a climb would it take to go above mach limit with a blocked pitot tube?
Assuming a blocked pitot (business end + drain) and total pressure trapped inside the tube at FL350 / 275 KCAS / M 0.808 yelds:
FL375 / 302 KCAS / M 0.922
FL380 / 306 KCAS / M 0.944
NB: corrected from an erroneous previous post which I deleted.