Extended full-power in small pistons

wrote My favorite?

When he said he saw no difference between my vidoes posted on You Tube
and MSFX.

Yep. that's "special," no doubt.

One of the insights into his mind came when someone posted links to his
blog, and he wrote on and on about going places, to pick up his imaginary
passengers, to fly to imaginary destination, and then having to wait around
the airport until his passengers came back to leave.

He "really" thinks simming is just as good as going places, and better,
because it is less expensive, and safe. Reality, to him, is just a passing
introduction, but he has never become friends. Wow.
--
Jim in NC

As a few of the people who actually understand this stuff have pointed
out, continuous operation at full power does increase wear and tear.
It has little to do with EGT, because EGTs are generally quite low
under full power. A more serious issue is CHT.

A very common practice with the TCM IO520 is to leave the throttle at
full throughout the climb. This produces a good rich (cooling)
mixture and gets you up to cooler air quickly. Most pilots do reduce
RPM slightly to increase engine longevity and provide better cooling
(higher airspeeds also help here at the expense of rate of climb). A
lot of the turbo guys run 80-90% power at altitudes in the teens.

Mixture is used in cruise (and in climb) as a tool to manage CHT and
fuel consumption.

Mxsmanic wrote in
:

The POH for a number of small piston aircraft warn that high power and
prop settings should not be used for extended periods. What counts as
an extended period, and what happens to the engine if these
recommended (or mandatory) limits are exceeded?


You;'re an idiot



Bertie