That explains the numbers. We rise at 10% lower speed and get about 30% better fuel consumption. The curve rises fast. Probably each of us sets our speed based on how the engine sounds. Your cummins may be smoother than our year 2000 Perkins/Sabre. Or maybe Adria's engine room sound insulation is better.
Richard P Former owner of W40Lilliana and W30 Puffin Tiffany Jayne 34-sailboat- Dancer- SF Bay
