Shock *Heating*?

: Given that cylinders are 1k each, I'll keep the temps up on decent when
: possible. I mean how hard is it to pull back to 2,000 RPM instead of
: idle??? Yeah, it's probably a waste of gas but I'm burning the cheap
: stuff
: anyway.

: That about sums up my feelings, too.

: We can't prove that it exists, but the very threat of a cracked cylinder
: head due to shock cooling is enough to make us fear it, and fly like it's
: real.

Don't forget another pilot-induced mechanism to lead to rapid cylinder
head cooling: pushing the mxture full rich at the top of descent, while
simultaneously reducing the throttle a modest amount. At this point, the
pilot could probably lean the mixture more, or leave it leaned for cruise,
until time to add power to level out.

--
Aaron Coolidge (N9376J)