Ref: https://www.avweb.com/features/avwe...-65where-should-i-run-my-enginepart-3-cruise/
Pelican’s Perch #65: Where Should I Run My Engine? (Part 3 – Cruise)
Cruise -- Time to sit back and enjoy the flight. But wait ... did you leave the mixture set where it was during the climb? Or do you just set it where it
John DeakinFebruary 2, 20030
At this point, the question usually comes up about “minimum CHT.” We know of no data to support a minimum CHT. The only evidence I can find is that many of the manuals for the old radials had a note (not a limit) that said, “Do not take off with CHT less than 100°C,” which is about 212°F. Modern liquid-cooled TCM engines have the thermostat set for 240°F. That seems pretty reasonable to me.
Pelican’s Perch #65: Where Should I Run My Engine? (Part 3 – Cruise)
Cruise -- Time to sit back and enjoy the flight. But wait ... did you leave the mixture set where it was during the climb? Or do you just set it where it
John DeakinFebruary 2, 20030
At this point, the question usually comes up about “minimum CHT.” We know of no data to support a minimum CHT. The only evidence I can find is that many of the manuals for the old radials had a note (not a limit) that said, “Do not take off with CHT less than 100°C,” which is about 212°F. Modern liquid-cooled TCM engines have the thermostat set for 240°F. That seems pretty reasonable to me.