Given the discussion in a previous thread regarding heat output, I decided to grab a few IR readings from my main heat duct in level flight at 4500’. I took several max heat readings at each mixture setting so I could see the change in heat output between mixture setting at 2500RPM and 100ROP (~1350°) and 25LOP (1425°). I took the highest reading I could get. OAT was 45° Baro 30.45. Cowl flaps were closed as we were way above their operation speed of 150MIAS. 100ROP (~1350°) generated
