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

I'd heard of one from Oz, probably the Kiwi, years ago. At that time it was not CF but was an engineered resin. The idea being that the amount of curve in the blades SHOULD NOT be the same at all speeds, and by using a slightly flexible blade (plastic) you can actually build a prop that changes curve to work better as the prop speed increases.

At the time they were supposed to be a novel idea and a good thing. I think PS tested them out, coupla decades ago.
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post #12 of 13 Old 03-11-2019
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Re: Plastic Prop???

Originally Posted by scubadoo View Post
Should be able to pull a water skier!!
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Last edited by eherlihy; 03-11-2019 at 05:02 PM.
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post #13 of 13 Old 03-12-2019
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Re: Plastic Prop???

Originally Posted by eherlihy View Post

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
Bit of a thread hijack here, but yeah, it's a big engine for a 28. A slightly tubby, 28 maybe. I can tell you that here on the Great Lakes, it's nice having that extra punch. We'll often go up the Lake Michigan coast for a few days, and on the way home we're going straight into 5-6 foot, steep Lake Michigan waves. In those situations, it does not seem like we're overpowered.

One might assume that Catalina had these engines on the shelf for their other models, and it was simpler to stuff it into the 28.
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