Yes, Dar they do intersect when using these units. It doesn't prove anything, it's simply a fact of the torque/hp relationship. That doesn't change the fact that the curve is not reasonable. I stand by my interpretation of the data presented that the torque figures near 4400RPM are erroneous. To truly learn anything we would need first to verify that the marked pitch on those prop is accurate.

See, the people at RCV are engineers. This is why I doubt such an odd curve is real.