Shock cooling, what a load of old b*lls. The speed of temperature reduction at shut down is far higher than in any descent and engines don't generally crack crankcases every time they are used. If you dipped a hot engine into liquid nitrogen, then you may have an issue.
I'd like to know if anybody has an impirical data on this phenomenon, rather than supposition. I'm wiling to have my mind changed if it can be proven, but as I've never seen any engine issues relating to 'shock' cooling I feel it is one of the old aviation myths that has been sustained from the days of crap materials in the engines
IO540, what have you started. A good bit of stirring if ever I saw one!
