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Old 08-06-2012, 08:10   #1
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Small prop for sailboat inboard

I need a 12" x 8"P right-handed prop (1" shaft) for my Cape Dory 28 and I can't seem to find one anywhere, save a new one for nearly $600. That's half what I paid for my engine! Does anyone happen to have one, or (more likely) know a used part place that has a good selection of props? Or I've called a couple dozen places but it's such an odd, small size that I haven't turned up any leads...
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Old 08-06-2012, 08:24   #2
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Re: Small prop for sailboat inboard

That IS a tiny wheel. What have you got , an 8 hp?
Is this a replacement prop, or what the numbers call for ?
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Old 08-06-2012, 08:44   #3
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Re: Small prop for sailboat inboard

I'd call Millers Island Prop in Maryland, or Kastel Brothers in St Michaels maryland, or Bacon Sails in Annapolis Maryland.

They all have quite a supply of used props, and since there are a lot of small boats in the area, likely they'll have something that will fit or can be repitched...
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Old 08-06-2012, 16:46   #4
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Re: Small prop for sailboat inboard

I have a two blade that fits that description or is close, 150 usd plus shipping. I'll check when I get home and let you know.

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Old 08-06-2012, 18:50   #5
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Re: Small prop for sailboat inboard

I may have this prop...it is new and unused. I will check it out. You can have it for pretty cheap. Does your shaft have a keyway? Bob
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Old 08-06-2012, 23:32   #6
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Re: Small prop for sailboat inboard

Mine is a 13 x 9, close, if you're interested.
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Old 10-06-2012, 08:51   #7
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Re: Small prop for sailboat inboard

Wow, thanks. I was about ready to give up hope so this is very heartening! PM's sent.

It is a very small engine (7hp) on a small (but heavy) boat, a Cape Dory 28 weighing in at 9-10,000lbs. I got the boat without engine or prop so I'm starting blind here but 12 x 8 is what I was told by a couple prop guys. I'm not likely to do a lot of motor-sailing so the prop isn't a great concern to me. It will be nice to have in tight spots but I am a bit concerned that being so underpowered will mean the engine isn't doing much in heavy seas where I might need it most. Can anyone familiar with two-vs-three blade props give me a sense of how these numbers would change for a two blade, or is it more complicated than a simple conversion? As I understand it you just need a bit more surface area on each blade to make up roughly the same area for the entire prop?
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Old 10-06-2012, 09:31   #8
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Re: Small prop for sailboat inboard

Minney's Yacht Surplus in Costa Mesa, Ca has hundreds of props and they ship worldwide.
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Old 10-06-2012, 17:00   #9
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Re: Small prop for sailboat inboard

First off, are you SURE it's right-hand? My cd28 w/ Volvo md2b takes a left hand prop.

Second, I bought a brand new Campbell sailor a year and change ago, cost around $350 straight from the manufacturer.

I would recommend this particular prop highly for your boat - mine easily does hull speed and backs down nicely

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Old 10-06-2012, 17:16   #10
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Re: Small prop for sailboat inboard

Quote:
Originally Posted by calderp View Post
I need a 12" x 8"P right-handed prop (1" shaft) for my Cape Dory 28 and I can't seem to find one anywhere, save a new one for nearly $600. That's half what I paid for my engine! Does anyone happen to have one, or (more likely) know a used part place that has a good selection of props? Or I've called a couple dozen places but it's such an odd, small size that I haven't turned up any leads...
If you are willing to go plastic you can get one for about $250.

My understanding is that in exchange for some durability you get a prop that is better for fuel economy. At high loads/rpms it flattens out slightly delivering full power and at lower load/rpm it ramps up giving better fuel economy.

CDI - Performance Propellers
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Old 10-06-2012, 17:59   #11
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Re: Small prop for sailboat inboard

The wee motor will probably do nothing for you in heavy seas or against strong winds.
4, or 5 in a calm, or helping to point a little higher in semi nasty conditions.
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