I have Traders old SF 20 with the DF 140. I have run it many years with a factory aluminum 14X21. I just put on a Powertech 4 blade 14X19. The old prop was a little beat up, but mostly I am after more stern lift and lower speed on plane. Yesterday I was able to stay on plane at 11 kts. with full tabs, half fuel and motor trimmed down. Also less stern squat and higher turns at no-wake speed. It looks like I am gaining about 2kts at my preferred 4K cruise turns. Early days yet for numbers. The mud is soft down here in NC; if I were still up in the rocky north, I would go with aluminum.
|