25 runs but won’t walk

[tribologist]

Here is what i have ahead of me.. Lewmar 110TT bow thruster arrived last weekend $865 on Amazon for a full kit. Its a bit on the small side and im thinking of installing behind water tank loosing a bit more ... but 55 lbf is still bit of force. Its 1/2 the price of a 80 lb thruster. I have a saying about milling machines... any mill is more accurate than any angle grinder and are also faster than any file

[Bob Noodat]

Northern hemisphere, RH prop. There’s the problem.

My LH prop works every time, especially above latitude 49.

https://youtu.be/owq7hgzna3E

I think you were being facetious. However.......

https://benthamopen.com/FULLTEXT/TOAEJ-7-1

20201018_084104.jpg

[WillieC]

Well, there you go. Tongue firmly in cheek.

[Burton]

Is your prop a 3 or 4 blade?

4 blade would help if it is not already.

It’s a 3 blade. I’ve got over five Benjamin’s in this prop.... but I will keep my eyes open for a four blade, too. Same diameter and pitch? Or does that change when going from three to four?

[tribologist]

Why would a 4 blade create more prop walk?

[Scudrunner]

Hey Burt, Thanks for the ride. A couple good points here I thought of on my trip home. Rudder size, prop pitch and hull design is what I came up with. Even with a breeze on the port beam the boat should have walked or drifted in. Every boat is different and part of the fun is learning how she handles.

[TorreyWP]

Why would a 4 blade create more prop walk?

A 4 blade prop will provide more thrust than a 3 blade which would translate to more prop walk especially in docking situations.

[Burton]

Hey Burt, Thanks for the ride. A couple good points here I thought of on my trip home. Rudder size, prop pitch and hull design is what I came up with. Even with a breeze on the port beam the boat should have walked or drifted in. Every boat is different and part of the fun is learning how she handles.

You are welcome! That was a great time—and last run for the season. Slow Motion now awaits winterizing and covering. I just flushed the cooling system with Salt-a-way. I saw your post on FB. Happy hunting!