Plastic Prop??? - SailNet Community
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post #1 of 13 Old 03-08-2019 Thread Starter
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Plastic Prop???

Has anyone heard of a plastic prop?

I’m looking at a 28’ sailboat this weekend that apparently has a plastic prop….not sure if this is really as crazy as it sounds.

It has Universal M-25XP Diesel.

Are there any advantages to a plastic prop?

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post #2 of 13 Old 03-08-2019
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post #3 of 13 Old 03-09-2019
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Re: Plastic Prop???

Quote:
Originally Posted by scubadoo View Post
Has anyone heard of a plastic prop?



I’m looking at a 28’ sailboat this weekend that apparently has a plastic prop….not sure if this is really as crazy as it sounds.



It has Universal M-25XP Diesel.



Are there any advantages to a plastic prop?
The only "plastic" prop I know of is the Kiwi Prop with carbon fiber blades.

There are some incredibly strong plastics these days, and lots of smaller outboards have plastic props, so it's not completely crazy. The only real benefits I can think of would be cost, and corrosion proof.

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post #4 of 13 Old 03-09-2019
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Re: Plastic Prop???

Probably the CDI urethane prop. Used to be all the rage.
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post #5 of 13 Old 03-09-2019
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Re: Plastic Prop???

I was familiar with them as an emergency spare carried on power boats, they actually use them now on outboards up to 225 hp., seen them "on board" peoples boats but never used one.
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post #6 of 13 Old 03-09-2019
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Re: Plastic Prop???

M-25XP is a large engine for a 28-footer. Is it original?


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post #7 of 13 Old 03-09-2019
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Re: Plastic Prop???

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Originally Posted by eherlihy View Post
M-25XP is a large engine for a 28-footer. Is it original?
My 1996 Catalina 28 has that engine as original equipment.
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post #8 of 13 Old 03-11-2019 Thread Starter
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Re: Plastic Prop???

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Originally Posted by eherlihy View Post
M-25XP is a large engine for a 28-footer. Is it original?
Yes, it was the original engine on this particular Catalina 28 MKII that we were going to look at. It actually sold two days before we had a chance to look at it.

On a side note, we looked at an Island Packet 38 over the weekend that had a composite thru-hull similar to this one https://www.defender.com/product.jsp...264&id=3683709.

Seems like I'm seeing a lot more plastic or "composite" materials being used in unexpected places.

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Re: Plastic Prop???

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Originally Posted by Siamese View Post
My 1996 Catalina 28 has that engine as original equipment.
Interesting...

1996 Catalina 28 MKII:
Displacement: 8,300 lb / 3,765 kg
Engine: Universal M-25XP
HP: 23 @3200RPM
1985 Catalina 34
Displacement: 11,950 lb / 5,420 kg
Engine: Universal M-25
HP: 21 @3000RPM
1984 O'day 35
Displacement: 11,500 lb / 5,216 kg
Engine: Universal M-25
HP: 21 @3000RPM
1982 Ericsson 35-3
Displacement: 13,000 lb / 5,897 kg
Engine: Universal M-25
HP: 21 @3000RPM


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post #10 of 13 Old 03-11-2019 Thread Starter
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Re: Plastic Prop???

Quote:
Originally Posted by eherlihy View Post
Interesting...

1996 Catalina 28 MKII:
Displacement: 8,300 lb / 3,765 kg
Engine: Universal M-25XP
HP: 23 @3200RPM
Should be able to pull a water skier!!

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