Charles
I also have a friend that owned a 170A with the two speed prop. He bought it out in Montana and years later sold it to someone down south. The prop worked great especially on skis. The flat pitch gave more pull to get out of deep or sticky snow. I would have liked to see it perform on floats but he never put it on the water. The prop was kind of like the old hydromatic transmissions, Low and Go. I do not remember the complete tail # but the last 3 were 20A.
Kenny
