gui
Full Member
Posts: 40
Jeanneau Model: SO37
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Post by gui on Feb 17, 2016 9:30:31 GMT
My SO37 has a 2 blade fix propeller and I am thinking to change to a folding flexofold.
2 blades is half the price of 3 blades and in Yachting Monthly The results are similar. Is worthy the 3 blades?
Somebody has this propeller? Is easy to install?
thanks
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Post by vasko on Feb 17, 2016 9:47:00 GMT
I have 2B Elice-Radice 17x13 for £500 new and extremely happy with price/performance
3B is definitely better feeling, a lot less vibration etc. if you have 4 cyl engine go for 3B , but if you have 3cyl engine you already have enough vibrations from the engine and 2B is worth also...
and there is always this problem with flexofold 2B:
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Post by hoppy on Feb 17, 2016 10:33:15 GMT
Plenty of 2B Flexofolds work perfectly, in fact all but one it seems based on the lack of anyone else reporting the problem...
My understanding is that the 3B give better acceleration which is an advantage when motoring into a chop. I think in flat water the 2B might give better speed.
My feeling is that if you just sail locally in good weather, then you can save money and get the 2B, but if you cruise then it's better to get the 3B for when you get caught out in not so good weather.
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Post by vasko on Feb 17, 2016 10:45:14 GMT
hoppy is right - 2B is for racers and price-sensitive people if the 3B price is OK for you go for 3B. hoppy btw - Elice-Radice has a special cut at the end of the blades that is designed especially to keep the prop open when in reverse ( to solve the problem like this one in the video) - I wonder why flex-o-fold do not have something similar... - pictures are on mine 2B Elice-Radice
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Post by Rumpus on Feb 17, 2016 16:09:46 GMT
We have gone for the 3 blade FOF, for the simple reason, when the chips are down and you need continuous thrust (bad weather/head sea/chop/tide against) the 3 blade out performs the two.
When the weather is nice and conditions are good, we sail, so 2 or 3 blade becomes irrelevant!
If you can afford it, go for the 3b.
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Post by svsecco on Feb 17, 2016 17:59:42 GMT
I put a Flexofold on my 360 Docking equipped 2013 45DS and it works great. There is a bit of a thunk when the pod swivels to the bow to provide reverse but nothing terrible. Motoring performance improved as well. Big thumbs up for the 3 blade flexofold. I installed it myself and it was super easy to do. Just make sure you follow the directions and torque everything properly.
I know you asked about Flexofold but I had a Kiwi prop on my previous boat, a 2006 39DS. That was a great prop too. The prop goes into max pitch when in reverse and it stopped the boat like I stepped on the brakes. A side benefit was that my zincs lasted multiple years (I keep the boat in the water year round) because the kiwi prop is made from stainless steel with composite blades.
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columbus
New Member
Posts: 9
Jeanneau Model: 45 DS 2011
Yacht Name: Columbus
Home Port: New Castle NH
Country: USA
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Post by columbus on Apr 10, 2018 19:58:41 GMT
Hello - I'm currently planning to order a FLexoFold for my 2011 45DS. with 360 docking. Could you advise which prop they recommended for you?
Appreciate the input - James
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Post by svsecco on Apr 10, 2018 20:55:19 GMT
Hi James-
I am sorry but I cannot find the information about the prop that is installed on my boat. If you contact FlexOFold they will be able to spec out the proper prop.
Chris
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Post by jdl01 on Apr 11, 2018 2:09:42 GMT
We switched to folding 3 blade for the issue of going into head seas as pointed out by Rumpus, but also because it produced better speed under the load of towing a dinghy.
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Post by NZL50505 on Apr 12, 2018 5:50:40 GMT
I emailed Flexofold a month ago asking about a 3-blade prop - never heard back.
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Post by Bora on Apr 12, 2018 6:56:46 GMT
For my SO37 they came back with: With a VP MD 2040 ( max. rated 38 hp / 3.600 rpm, gear reduction ratio 1:2,14 ) we would recommend a 3-blade 16x10-3L/R propeller for your Jeanneau Sun Odyssey 37 .
The price for a complete 3-blade 16x10-3L/R Flexofold with hub for ISO / SAE standard shaft is EUR 1.859,-
flexofold.com/folding-propellers/5-shaft-propellers/17-3-blade-shaft-folding-propeller/
Price is incl. VAT and shipping costs with a door-to-door service by UPS from Flexofold in Denmark to the address in the UK.
Prices are valid 4 weeks.
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Post by optimystic on Apr 13, 2018 0:29:42 GMT
I put the 3 blade flexifold on our so 379. It was a significant improvement to sailing and motoring. We love it and have needed the power of the 3 blade a couple of times in current.
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Post by so36idavid on Apr 13, 2018 6:39:57 GMT
I emailed Flexofold a month ago asking about a 3-blade prop - never heard back. Try emailing Marlene Storm, mst@flexofold.com. Or you could call, when I called a human actually answered the phone which I thought was a very innovative approach to customer support . They're in Denmark so you'll need to work with the time zones. FWIW I have a 3 blade Flexofold and it's been great. David
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Post by Spritz on Apr 14, 2018 7:21:47 GMT
I never received answers by mail till I called them. Well I would say that their answers were not “brilliant” so I had AUTOPROP and I am more than happY!!!!!
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columbus
New Member
Posts: 9
Jeanneau Model: 45 DS 2011
Yacht Name: Columbus
Home Port: New Castle NH
Country: USA
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Post by columbus on Apr 16, 2018 11:36:10 GMT
I just placed the order for the Flexofold prop. 4/16/18. Nina in their office has been very helpful. The first spec from them was for a SD 50 drive with a 1:2.38 ratio and was for a 20x13-3 L/R
My drive is a 360 dock and go/ azimuth. The boat is a 2011 - originally in fresh water but moved to the Atlantic in 2013. Apparently the previous owners had neglected the zincs and had high corrosion on the drive leg. The drive leg was replaced in 2015 with the SPPB75 leg and is a 1:2.49 ratio. The prop spec for this drive, which I ordered, is 20x15-3L. Cost total delivery to the US east coast is $2825. Will update as we receive and install!
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Post by iancymru on Apr 16, 2018 13:16:01 GMT
Be worth checking the anodes all round as deferent specs for FW and seawater. Don't think zincs work in FW.
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jimairey
New Member
SO 36.2 TELSTAR
Posts: 9
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Post by jimairey on Apr 28, 2018 20:32:40 GMT
Three seasons ago John Stirling fitted a three blade flexofold to our SO36.2. All good..more grunt when motoring and no drag and quiet when sailing. And we now have a spare propeller.
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Post by ania on Apr 29, 2018 1:31:20 GMT
We had pretty serious vibration on our brand new flexofold between 1900 and 2400 rpm on our Jeanneau 51 dealer couldnt fix it, we are switching to Max prop.
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Post by j24sailor on May 12, 2018 5:08:40 GMT
My SO37 has a 2 blade fix propeller and I am thinking to change to a folding flexofold. 2 blades is half the price of 3 blades and in Yachting Monthly The results are similar. Is worthy the 3 blades? Somebody has this propeller? Is easy to install? thanks We switched from a fixed blade to a 3B flexofold and very happy. Took a bit to learn the difference in reversing but it works very well. James
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Post by andreshs1 on Jun 19, 2018 13:06:20 GMT
Hello
In trying to get a quotation for a 3B flexofold and I have been asked for the engine gear reduction. Looking at the engine I have the Yanmar 4JH3E With Gear box. :Model ZF 30M. A 2.15. B 2.63. ZF Hurth Marine. Which of those figures is the reduction?
Cheers Andres
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Post by Don Reaves on Jun 19, 2018 20:41:45 GMT
Could be that 2.12 is the reduction in forward and 2.63 is the reduction in reverse.
Don
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Post by bratwurzt1 on Jun 20, 2018 1:06:49 GMT
We have 3 blade Max feathering prop on our SO 35 and has 80% of force in reverse as forward with very little to no prop walk. Big improvement from our fixed blade. Just food for thought.
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Post by jlasail on Jun 20, 2018 1:44:00 GMT
I have the Burnton Autoprop on my SO409 and I love it. I measured at least a 3/4 knots improvement on engine performance. Max speed is with the autoprop is around 8.2 knots. No noticeable prop walk. Reverse from forward to backward is very quick. Jl
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Post by andreshs1 on Jun 20, 2018 3:52:07 GMT
Hi both
Looking at the comparative reviews there isn't much difference between the two (MAX vs AUTO) aside on the propeller walk
I got a quotation from Bruntons and for a MAX prop already, waiting for the flexofold one to make the decision, although I'm more inclined to go for autoprop as I'll be getting the sigma drive also
My only concern is to ensure that I get the right size and pitch.
Anyone with same/similar configuration of engine and gearbox? Yanmar 4JH3E x 41.3 kw. Gear box Model ZF 30M. A 2.15. B 2.63. ZF Hurth Marine
Cheers
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Post by sitara on Jun 20, 2018 5:00:25 GMT
Look at www.simplicity-marine.com/pdf/ZF/ZF_30_M.pdf. It appears that the ratios given are for the A position (forward - continuous running) and the B position is reverse. The forward ratio is the one the prop designer will want.
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