As the title implies, I have a fully faired airplane but with the old one-piece wheel pants and the two-piece aluminum leg fairings. I recently purchased a second hand three blade Catto and found it to be rather cruise pitched for my plane - my static RPM is approximately 2090, and it winds up to 2150 in the takeoff roll. My WOT RPM at 7500’ is 2640.
In speaking with Nicole, it seems I could benefit from a repitch for more static and climb out RPM. In the process of this, I inquired if the additional airspeed from the newer wheel pant design would make up any of the difference; she wasn’t sure.
So that’s my question. Will upgrading my wheel pants let my prop spin up to the magic 2700 RPM as currently pitched? Similarly, while it obviously wouldn’t affect static, would the takeoff run and climb RPM be improved at the same airspeed? If yes, may it prove sufficient or is the static RPM still just a tad too low?
For reference, the prop is a May 2016 production (I’m not sure if that’s second or third gen.) on a 150 HP RV-4.
In speaking with Nicole, it seems I could benefit from a repitch for more static and climb out RPM. In the process of this, I inquired if the additional airspeed from the newer wheel pant design would make up any of the difference; she wasn’t sure.
So that’s my question. Will upgrading my wheel pants let my prop spin up to the magic 2700 RPM as currently pitched? Similarly, while it obviously wouldn’t affect static, would the takeoff run and climb RPM be improved at the same airspeed? If yes, may it prove sufficient or is the static RPM still just a tad too low?
For reference, the prop is a May 2016 production (I’m not sure if that’s second or third gen.) on a 150 HP RV-4.