U.S.S. Des Moines

You want the Kort Nozzel props at 1.5". The part numbers are KNP/1515/4/RH/BR and KNP/1515/4/LH/BR. You can tell them want to make the shaft bore. I assume you are 1/8" or maybe 5/32".
A couple things to lookout for. You need to solder them on the shafts. I've had props come with sleeves it them to size them to my request. They were not soldered very well. These props do have a forward direction. I can't really type its description but could tell you over the phone when you get that far. When soldering them on its not easy your first time. The brass rod and bronze prop heat differently lots of care is needed.

 

Awesome! I was curious. What do the different numbers mean on there? 1515... 1620.... Prop angle?

 

the first two digits are the size in inches, and the second two digits are the pitch measured in inches traveled forward in one complete revolution of the prop (in theory). So 1.5" diameter/1.5" pitch, 1.6" diameter/2.0" pitch.

 

ah. how do you know which one to choose or do you just use the ESC to fix all that?

 

Big BB & BC use 1.75"
Small BB & BC & big CA use 1.5"
Most med and small CA go 1.25"
The really big BB use 2" & 2.25"
If it's a single prop ship move up a size.

 

Ah, thank you

 

This is my Baden.... 2.25" prop.

 

I have a 1.75" prop on my cruiser.

 

Ok thanks Bob, I'll order them this week. Should I wait to cut out the shafts holes until I get the rudder done and props?

 

dm, I suggest you read over some of the other build threads that show some of the (many) ways to do this. Most will have you figure out where the rudder post(s) will be, then align the propshafts so that the prop is directly in line with the rudder(s) (if 1 prop-1 rudder or 2/2) or tapering together toward if 2/1. Best setup (as shown on my Baden pic) is 1/2 where the propwash is directed between two rudders.

 

Use some 1.5" disks as props until they show up and get cutting.

 

Here is the placement of rudder and prop shafts.

 

A side view. I'm not sure about the shape but its 1"tall by 3" long.

 

Heres the stern view.

 

Ok NickMyers, I can see from the stern view that's I good idea. Will redo a new one and post when I've got it.

 

Here is the redone design, might be alittle too tall??

 

That's it for today boss says its time to go, will work on it tomorrow.

 

The shape looks right. But you might need to move it closer to the props now that the shape changed.