Prop

[CHANCE1234]

I'll raise the engine another hole before next trip. Both props are aluminum and used. The pic in the other thread is of the quicksilver prop and it's stamped 13 1/4 X 15. I don't have anyway installed on board to measure fuel burn. No, I did not compare sped of the different wheels at different speeds. Last year min planning speed was 12-13 kts, I did not think to check again this year after she's got a clean bottom. I'll do that next time out. It is a two stroke yamaha. She also has tabs now so she could potentially plane out at very low speed I would think. I generally fish solo so that is how I tested her today with a full load of fuel on board. The tach is digital. I didn't notice much bow rise at all with either prop and didn't touch the tabs at all. Would a 19 pitch be too much for this set up. I'm looking for a mix of fuel economy and good cruising speed around 25 kts roughly at 4200-4300 rpm I think. Thanks for any help.

[McGillicuddy]

Sorry about the presumptions.The stamp is the truth. Older model I guess with sleeker thinner blades.The late model Quicksilver Black Diamond QA2034X or Merc Black Max 48-77342A45 is 13-3/4 x 15. Bigger, rounder semi-cleaver blade. More lift, better push. Likely serve your 2 stroke well, even if you drop 200 rpm, I think you'll find economy gains at cruise and lower planing speed. You can find them on eby for $80 without hub and maybe $110 with. See if a friend or propshop has one laying around. they are very common. Dang good prop for the money. Your Yammy sounds very strong and might be able to spin up the 17p version, but I think you will lose overall going to 19 pitch as the wheel and blade area get smaller.