https://www.lycoming.com/content/tips-extending-tbo
came across this link where lycoming provides some info how to be kind to our engines. you will all agree that reaching TBO or being able to go beyond is a good thing.
the section that adresses descent states: "Descent power settings at greater than 20” Hg manifold pressure should be utilized for the greatest possible time to avoid accelerated piston ring wear."
lately i developed the habit to reduce power at cruising altitude to 15"/2000 RPM or so and to let her sink with around 500 ft/min down to pattern altitude, which can take awhile. here lycoming states that low manifold pressure is not so nice for the piston rings (and this should not only apply for the descent phase i think).
there are a lot of OWT's around but this statement comes from lycoming itself. i would be interested to hear your opinion about that...
Best Regards from rainy germany
Kay
came across this link where lycoming provides some info how to be kind to our engines. you will all agree that reaching TBO or being able to go beyond is a good thing.
the section that adresses descent states: "Descent power settings at greater than 20” Hg manifold pressure should be utilized for the greatest possible time to avoid accelerated piston ring wear."
lately i developed the habit to reduce power at cruising altitude to 15"/2000 RPM or so and to let her sink with around 500 ft/min down to pattern altitude, which can take awhile. here lycoming states that low manifold pressure is not so nice for the piston rings (and this should not only apply for the descent phase i think).
there are a lot of OWT's around but this statement comes from lycoming itself. i would be interested to hear your opinion about that...
Best Regards from rainy germany
Kay