I have been waiting for a cold day with calm air so that I could make my full-throttle 8,000' speed run.
I took her up to 8k (Which didn't take very long... ) and steered 120, then 240, then 360 and recorded the max speed on each heading once everything had time to stabilize. Aircraft weight was 1685 with fuel and crew.
The three-run gps average was 180 kts.
I am running a Mattituck 0-360 with 8.5/1 jugs and a Sensenich 72 FM 86" prop.
I ran out of prop on each heading and had to back off of the power a bit, so I could probably go a bit faster with a repitch. Vans recommends an 85" pitch for this plane, but I thought that the 86" would be better for my needs. I am pleased with these results and feel that I have a satisfactory combination of climb and cruise performance.
I took her up to 8k (Which didn't take very long... ) and steered 120, then 240, then 360 and recorded the max speed on each heading once everything had time to stabilize. Aircraft weight was 1685 with fuel and crew.
The three-run gps average was 180 kts.
I am running a Mattituck 0-360 with 8.5/1 jugs and a Sensenich 72 FM 86" prop.
I ran out of prop on each heading and had to back off of the power a bit, so I could probably go a bit faster with a repitch. Vans recommends an 85" pitch for this plane, but I thought that the 86" would be better for my needs. I am pleased with these results and feel that I have a satisfactory combination of climb and cruise performance.