John, I don't know about the extra ½ knot. How fast are you going now under power? If you are at hull speed, you could put on any prop you want and go no faster. To align the prop with the cutlass bearing support, you can, with the boat on the hard and the tranny in neutral, align the prop by hand, then climb in to the engine compartment and put a paint stripe on the vertical position of the shaft. When you are under sail (motor off), you can climb down again, with the tranny in neutral align the shaft to the same position, then put the tranny in gear, as otherwise the flow over the prop from your motion can turn the prop.
I'm pretty sure Dr. Judy has the Indigo three blade, as do I, but our engines are Atomic 4's. Keith Sneddon ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, December 18, 2006 9:03 AM To: [email protected] Subject: Re: catalina27-talk: Prop Talk I posted this several days ago and not sure it got out. Have not received responses. --------- List I am considering changing the prop on Escapade. I currently have a three blade prop on the boat - stamped on the prop, "MI/Fed, MP/TP 12 RH 10". I have no qualms about this prop except I would like that extra 1/2 knot (as I have been told) with a two blade prop. The PO left a two blade prop in the locker, stamped on this prop is "Sailer Michigan, 12 RH 12". Based on its appearance this prop was probably used by a previous owner before switching to the three blade. Question. What are the pros and cons on using these props? Are they the correct sizes for my engine? What alternative props should I consider? Not sure I would like a feathering or folding prop. Could become fouled (and expensive). I seem to remember Dr. Judy has a different looking two blade (thought I saved the item but can not find it). While under sail, how do you make sure the prop stops in the vertical position, in line with the cutlass bearing support? Wouldn't this the optimum position for less resistance and more speed? Any thoughts, suggestions, advice, dialog, etc. John Jennings s/v Escapade 83 C-27, # 5267 Standard/Dinette I/B Diesel, 5411 Middle River, MD John Jennings s/v Escapade ~~~ /) ~~~ 83 C-27, 5267 ~~~ ~~~ Standard/Dinette I/B Diesel, 5411 Middle River, MD
