This is for information only in case someone is interested
I changed out a Michigan Wheel 48 66450A4 17P wheel for a Solas Amita 4 1513-148-15 14.75" x 15P on a 1975 Apollo 19-foot Ford 302 / 888 package.
I installed old style trim / plane tabs to help out the time to initial plane and to keep the bow down. I tried many times to trim the boat while underway and on plane at different speeds with the Michigan Wheel --- results were very little difference if any until finally losing speed and steering control.
After installing the Solas Amita 4 ---> planes much quicker, raises stern / pushes bow down, I can trim 300 to 400 rpm increase and speed increases.
I was never quite sure about the old prop ---- WOT rpm 3600 with Michigan Wheel.
Solas Amita 4 --- WOT rpm about 3900 ---- need to work on power trim skills now that it will trim.
I am also considering removing the trim / plane tabs. I will at least try it with them removed for reduced drag..
I am very happy with the change ---- thank you all for the great information in these posts to help me with my decision to change props and what to look for.
"If the boat is not sinking or on fire ---- Relax."
Apollo, that is actually a Mercury prop with those numbers, but I do agree with you that the Solas Amita 4 blade props work really well on most boats that need low end pulling power and stern lift. But what I know about props I know you know about motors, just different genres.
If the blades aren't messed up and you just spun the hub, they can usually replace the hub for about $ 35, depending on where you live and you might use it as a spare. But if the blades are messed up as well it usually is not feasible to have it fixed.
I thank you very much for the kind words Apollo, and I know you do the same thing to help people as well with motors.