Finished Figured I might as well put one last post here, project is done and boat is wet, all went well. Couple pics attached. Final numbers:...
New cummins going in, the detroit went to craigslist... But I know exactly what you mean about the DD's and engine loading.
Long project at just a couple hours a week, but here is finished keel with bottom paint, still waiting on new rudder, working on installing...
Overdue update Been busy at the desk job, but have made progress: keel addition is on, new shaft log in, lam panel filled all open areas created...
Shooting for 26" 4 blade and will likley end up with around 4.5" tip clearance. I have been told if that is noisy then either cup it a little or...
I would like to gain the ability to run at more than one speed, the 53 series likes to be running at 2500 rpms, which is damn loud despite lots of...
Got the mold built and filled for the "keel plug", lots of work, but it is done, need to trim it and fill with foam then encapsulate to get it...
Pictures of wedge with thru-hulls to alleviate cavitation noise.
Very true, research on the Nidacore shows it would indeed be difficult to taper, at least if left sandwiched flat versus vert, still difficult if...
Went through and basically sketched up an overlay starting at no shaft angle change through 3.25 degrees of change (increase). The prop of course...
10-4, just trying to calculate how much shaft tube to extend beyond the keel to get the prop away from the keel as far as possible, but realistic...
What would be considered an acceptable distance from the cutless bearing to the prop hub? My existing was damn tight, 2.5" at best, which seems...
Sat up last night and went through angles and tunnel clearance and prop diameters, and estimates of fiberglassing for the various options. And...
Makes me itch just looking at them....!
Thank you MM, perhaps a 5 blade 26 with a shallow tunnel? 10% tip clearance enough for the tunnel application? Can a 5 blade get away with maybe...
The engine is a QSM 6.7 425, ZF 280IV gear, 2.25 ratio, the builder of the boat says they would do 20kts light (mine weighed 18,500 with 300G fuel...
I hear you, I have run things past a commercial fish boat builder and the prop guy. Problem is I'm repowering and powering up, and the prop pocket...
He did mention the options as basically 4 or 5 blade, but said to get proper 24" wheel clearance if I could. I think I heard a 5 blade deals with...
Plan is to start with four, and end with four. We'll see how it all holds up.....
Good advice, I've worked with the angle a bit and it looks like while I will still have to move the rudder, the prop will only need to move back a...
