Propeller source and size for 1990 Beneteau 41S5

[georgetheleo]

I was just hauled for above referenced 1990 41S5 with a 50 perkins prima diesel engine. I want to replace the 2 blade original RH prop on its 30MM shaft. Need sources and size. OK today I removed the old prop. The markings stamped on the hub are "118 3 14" What does this mean.?? It is definately a 18 inch diameter 2 blade RH prop. It is definately a 30mm shaft. The hub measures 3"inches long.

 

[sail sfbay]

You will need engine and transmission specification and datasheet to optimally match them to the propeller and decide on popeller type, e.g., fixed, folding, feathering, etc., number of blades and budget. Many suppliers including local chandlery and boatyards and on-line propeller shops like Sailboat Propellers for Sale | Fixed or Folding Sail Boat Props | Get A Prop |, Boat Prop Guide | Deep Blue Yacht Supply and Sailboat Propellers - General Propeller-GP. Expect the forum to offer their recommendations and preferences so I will offer mine.....3 blade fixed propeller.

In the meantime, you might find this article helpful on propeller selection: Understanding Your Sailboat Propellers | Cruising World.

 

[Hollyberry]

Not sure about the leading "1", but otherwise looks like 18" diameter, 3" hub, and 14" pitch...
If you change to feathering/folding and/or 3 blades the pitch spec might change a bit, consult your supplier.

 

[fstbttms]

Not sure about the leading "1", but otherwise looks like 18" diameter, 3" hub, and 14" pitch...

Prop specs are not stamped into the end of the hub. They are stamped on the hub between the blades. These numbers likely refer to manufacturing date/lot number etc.