- Feb 24, 2009
- 3,037
- Boat Info
- 2004 400DB, Onan 9 kw Generator, Highfield RIB,
- Engines
- Cummins 6CTA M-3
It's confusing, the bevel is on the suction side of the prop blade. When the prop is spinning forward, the suction side is the side that is not moving the water to produce thrust.I guess I just didn't take enough off. Yours look like a power wheel did that. The file seemed to take a while to get any bevel and it wasn't as far as that. I'm just afraid of taking too much off. I may have not gone far enough around the tip. and did nothing near the cup on either side. Just to verify 200%...With the props installed I filed the side facing the front of the boat from HUB to almost TIP. Is the edge of the prop squared off? Or like a knife edge?
The bevel is on the backside of the blade right where the cup is on the pressure side.
Maybe look again at the post #11 of my little prop, obviously there is very little or no cup on that little blade, but if there was, it would be right under that bevel facing straight down at the floor.
The bevel does not go all the way to a knife edge, it's a little rounded. Look between my thumb and fore finger on the big prop, then as you move toward the hub, it looks like the edge becomes knife like but it does not, the edge disappears in that picture because the blade edge curls under because that is the cup on the other side.