The Cape Dory Board

There is a one inch difference in the spacing between the salon ports on my CD27. One side is 27 inches apart and the other is 28 inches. Why the difference? It isn't noticeable until you measure.

One more bit of info: Searching this site under "Michigan and Campbell" yields multiple threads that are pertinent. My previous searches tended to focus on CD27 or CD25 or YSM/YSB or 'props' and weren't as helpful. There is so much under "Michigan and Campbell" that I haven't had...

Another update: I submitted my data to Campbell and got their recommendation. They were very prompt with their response, just as Michigan Wheel was. They suggest a three bladed Left hand prop. Diameter 12 Pitch 6. They say that their cupped blades and leading edge foil technique 'produces greater th...

For anybody still following this thread, or those who find it in the future, here's the latest. I sent Michigan wheel all my data and they responded very promptly with this recommendation: Michigan Wheel Sailor Series 2 blade 12 inch 8 pitch or 3 blade 12 inch 7 pitch This is in line with most of wh...

OK, new questions. When I look up recommended props from Yanmar or use a prop calculator I get twelve inches and pitch of 8 or 6 respectively for a two bladed prop. What I had was twelve inches and a pitch of 10. Nobody has been able to tell me what the original prop measurements were much less what...

Thanks for both replies. My self education continues. The CD27 prop is 12 inch diameter, pitch of ten, bore of one inch. Standard taper. Left hand screw. I found a variety of dealers online and locally for Michigan Wheel props. Other names to surface have been Campbell and Martec. Various observatio...

I have a 1979 CD27 with the original 8HP yanmar, which after a valve job is running well. MY two blade prop, probably the original equipment, is pitted and cracked and needs replacement. I've read the pros and cons of 2 versus 3 blades. My questions are: where to obtain a replacement and how long it...