[C320-list] Props....
Brad Kuether
bkuether at comcast.net
Sun Aug 21 20:42:23 PDT 2011
How funny. Warren, Patty and I were discussing props this weekend.
I put the Flex O Fold on my 2004 and will NEVER look back. The prop makes
the sailing experience so smooth, and the light wind performance on the boat
has been AMAZING. I specifically took the 2004 model over the 2002, because
of the SS shaft.
I was told the bronze shafts were "no good" for folding or feathering props,
not sure if weight is the factor, but suspect it plays.
I have had a half season so far and here is what I know:
Forward - Much better performance than the stock 3 blade fixed. Same speed,
less RPM as advertised.
Reverse - Slightly better than the the 3 blade fixed.
What I like best - The ride is smooth. There is talk that at a certain
windspeed it doesn't matter which prop you have. I disagree with that
statement, and invite all those who want to be "enlightented" to come for a
test sail.
What I don't like - Going backwards, you really don't want to go from
reverse to forward. The whole thing is very un-natural and you know it must
be taking a toll on "something". I avoid it as best I can.
The boat show price for the prop was $1800, thats $300 more than the
feathering Kiwi prop. And no, I don't have a bias against plastic blades,
my CDI had them and I loved that prop....
-Brad, Mary, Monica, and Jarod
"Independence"
2004 Catalina 320 Hull 1006
Middle River, MD
----- Original Message -----
From: <LOCALJG at aol.com>
To: <C320-List at Catalina320.com>
Sent: Sunday, August 21, 2011 10:51 PM
Subject: Re: [C320-list] Martec prop
> Good info on the Martec Steve. Thanks. A Martec three bladed prop came
> with my 320 but during the initial pre-purchase haul out and inspection,
> the
> inspector found the propeller shaft was not true and the cutlass bearing
> needed replacing. I replaced the Martec with the stock three bladed
> fixed
> prop that originally came with the boat from the factory. I haven't as
> yet
> placed the Martec back on the boat. Before I do I wanted to find out if
> I
> needed to get a stainless steel shaft?
>
> All the things you said about the prop appear to be true. It is
> definitely one heavy piece of gear. I am still debating whether to place
> the Martec
> back on my 320?
>
> Perhaps a folding 3 bladed prop would be better?
>
> John
> Dreamtime #329
>
>
> In a message dated 8/21/2011 4:22:28 P.M. Pacific Daylight Time,
> stord at cox.net writes:
>
> Denny,
> Sorry to take so long to reply.
>
> When we bought our 2000 320 it had a two blade fixed prop. While forward
> performance was okay, performance in reverse lacked significantly. We
> were
> also interested in racing our boat. With those two factors in mind, we
> bought a used Martec Autostream 3 blade feathering prop at a slight
> discount. We've enjoyed it. IMO, it had much better performance in
> reverse
> with less prop walk. We also reduced drag which helped when racing.
> The
> downside is that it's a heavy piece of metal on the end of your prop
> shaft.
> We've replaced the cutlass bearing once so far. Was that a result of the
> Martec? I don't know, but it is heavy. If your shaft isn't perfectly
> aligned, you will feel it. We've also replaced our OEM shaft with a
> stainless one. It's just stronger given the weight of the prop.
> Maintenance for our prop has been easy. The zinc is easy to change and
> I've
> done it in the water. Lubrication is also easy with a simple fitting
> that
> a
> grease gun can engage to lubricate all of the internal gears. The only
> issue is how long the O-rings at the props will last in salt water.
> We've
> had these ones on for approximately five years and will be looking at
> them
> very hard next spring when we haul the boat. Changing the O-rings isn't
> difficult, just messy given that you've got to disassemble the back of
> the
> prop to do it which releases all of the internal grease.
>
> While we like our Martec prop, I've often wondered if we might have been
> better off with a 3 blade folding prop versus the 3 blade feathering prop
> given the difference in weight and internal gearing.
>
> Steve
> s/v Joy 756
>
>
>
> -----Original Message-----
> From: c320-list-bounces at lists.catalina320.com
> [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Denny
> Browne
> Sent: Friday, August 05, 2011 12:36 AM
> To: C320 List
> Subject: [C320-list] Martec prop
>
> Can't afford an Autoprop but hate my 3 blade fixed. Except pulling into
> the
> slip too fast, then I like it a lot.
>
> But have any of you switched to the Martec? Comments? Sorry for the old
> topic.
>
> Thanks,
>
> Denny Browne
> A Cappella #935
> Redondo Beach
>
> Sent from handheld, sorry for typos, grammar, etc...
>
>
>
>
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