Question about engine management on takeoff and climb especially as it pertains to noise abatement. I tried searching the Cessna forums but didn't find much information. Thought I would post on Supercub.org to see if there are any cessna drivers willing to discuss.
I have an 88" three-bladed Mac and it is very noisy on takeoff. Normally I take off with the prop pulled back to 2700 RPM and full throttle. Then after climb established and flaps up, I go to 25" and 2550 RPM as per the book.
Someone suggested to me that I should keep full throttle and the prop at 2700 RPM for fuel flow and cooling, so the next few flights were exactly that - full throttle and RPM at 2700 all the way up to cruise altitude. Very noisy.
Then a friend said he typically uses full throttle and 2700 RPM on takeoff until off the ground and immediately pulls the prop back to 2500 RPM while keeping the throttle set full forward. However, I was under the impression that you should not bring the prop back to 2500 RPM under high MP conditions in these IO-520s. I certainly would love to operate it that way since it would be way quieter and still give me power for the climb.
My priority is to protect the engine first and consider noise abatement second unless mandated. Is there a good way to accomplish both?
Consider a sea-level takeoff with a climb to 4500 feet on a standard temperature and pressure day. What would you do? What is best for the IO-520?