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I once owned a couple of Super Cubs
that we used to tow gliders. They spent most of their life at either high
power or idle. Those were the most solid engines I ever owned. They
always made TBO. My personal experience says that shock cooling is
vastly over-rated.
Naf
<< Now, back to the subject
line: I am reminded of the recent
post on engine cooling on the LML stating something like “engines with lots of
high power climbs and rapid power off descents have higher average TBO’s than
the average general aviation aircraft in use by owners” (or words to that
effect). The aircraft/s used in
this world record setting event certainly had significant rapid heating and
cooling cycles. >>
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