NinerBikes
Well Known Member
I currently have my prop pitch set at 71.4 degrees, the Factory Van's setting, and I see about 4900 rpm static, and about 4975 on take off at 1000 ASL at full 1320 gross, at 75 kts, Vy, and a 650-700 fpm climb rate at 28C Thursday evening.
I still feel my prop is over pitched. I'd like to see around 5150 to 5175 at 75 kt's and closer to 900 fpm.
I guess I am trying to see how much pitch needs to be taken out of the adjustable props to see my 5150 rpms, from the 71.4 degree setting that is there? Or should I call Sensenich for recommendations?
How much rpms might you gain with a change in pitch from 71.4 degrees to a more shallow bite of air like 72.0 degrees, at climbing speeds of 75 kts 1000 feet above sea level?
I still feel my prop is over pitched. I'd like to see around 5150 to 5175 at 75 kt's and closer to 900 fpm.
I guess I am trying to see how much pitch needs to be taken out of the adjustable props to see my 5150 rpms, from the 71.4 degree setting that is there? Or should I call Sensenich for recommendations?
How much rpms might you gain with a change in pitch from 71.4 degrees to a more shallow bite of air like 72.0 degrees, at climbing speeds of 75 kts 1000 feet above sea level?