Wanted propeller, folding propeller for 371
Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 371
Forum Description: 371 Hints and Tips
URL: https://www.myhanse.com/forum_posts.asp?TID=8814
Printed Date: 27 March 2026 at 03:41
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Topic: Wanted propeller, folding propeller for 371
Posted By: Juissi
Subject: Wanted propeller, folding propeller for 371
Date Posted: 13 January 2015 at 07:59
 Preferably 3 blades, because the boat is 371 and engine is MD2030. Saildrive is MS25 and the ratio is 1: 2.47 so... would be the most suitable 17x10/11x3L or 16x12/13x3L so on... 2 blades has not been ruled out, but will be considered and bids will be received, thanks. Cheers Juissi
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Replies:
Posted By: jeb
Date Posted: 13 January 2015 at 14:55
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Hi, I dont have an prop to sell but you should have 17x12 3-blade or 17x13 3-blade. Smaller size will give to high RPM. Both Volvo original and FlexOFold are good props for the 371. ------------- Jesper Hanse 400e |
Posted By: Juissi
Date Posted: 13 January 2015 at 16:43
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Thanks Jesper Good to know, good comments are always welcome. Do you have a personal experience of the propeller on the size of H371 boat? I sent email the invitation to tender to the FlexOFold's importer and he offered 16x11x3L, I got to think about it, even then the propeller (16") sounded too small. Then I called to FlexOFoldin importer again, now he recommended 17x11x3L... a little strange, what is size at next time But he said that by using 17x11 prop the max RPM will drop at 150RPM. Thanks for the tip, Jesper -juissi BTW Gori also recommended as a small propeller 16.5 X11x3L
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Posted By: gertha
Date Posted: 13 January 2015 at 19:40
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I have a Kiwi off my 370, it misses one blade. If you want a cheap folding prop, you could have this Kiwi refurbed and be in business. Simon ------------- Swanned off |
Posted By: jeb
Date Posted: 13 January 2015 at 22:14
I use to have a 371 with the Yanmar engine (now sold, have bought a 400e instead) and when I bought it in 2004 I asked FlexOFold for a prop calculation. They recomended 17x12 or 17x13 3-blade. The Yanmar has almost the same reduction (maybee you should check that, Yanmar engine in 371 is 3YM30 with SD20 saildrive). However I decided to order the prop directly from Hanse and told the importer that I wanted the 17x13 3L. I was not able to check the size at delivery since the boat was already in the water. But it had really high RPM - approx 3800 rpm (probably in rpm limitation) and max speed was around 7kn. When the boat was lifted after the season I found out that they had fitted a 16x10 3L  . I called the importer and they replaced the blades with 17x11 3L, but the RPM was still to high, I could easy reach 3800 rpm but with a clean hull and at clam conditions I reached 7.9-8kn . A friend of mine had a Bavaria 38 with the same 30hp Penta you have and they fitted a volvo prop, 17x13 3 blade and max rpm was below 3600. They reached 8kn and was cruising at 7 below 3000 rpm.------------- Jesper Hanse 400e |
Posted By: Juissi
Date Posted: 14 January 2015 at 10:49
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Hi Simon! Thanks for the offer, preferably Volvo, Gori, FlexOFold or Radice. -juissi |
Posted By: Juissi
Date Posted: 14 January 2015 at 11:00
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Thanks Jesper, This was valuable information! Cheers, Juissi
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Posted By: Pride of Waterford
Date Posted: 14 January 2015 at 14:12
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A 16 inch Radice, or 16 Gori, or 17 inch flexofold would all work fine for you. Th Radice has a coarser build but works quite well. ------------- Brod Port Lairge |
Posted By: MatsG
Date Posted: 18 January 2015 at 20:28
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I have Flex-o-fold blades (not the hub) 17x11 3L if it would suit you. I have a 371 with 40hp Yanmar but have changed the blades to 18x12 3L. Do you have 30 hp Yanmar? MVH Mats ------------- MatsG 371 |
Posted By: Juissi
Date Posted: 19 January 2015 at 05:20
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Hi MatsG Thank you for your message The boat has a Volvo Penta MD2030 29hp, but almost the same power and gear ratio. I'm interested in the blades. Juissi
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Posted By: Juissi
Date Posted: 20 March 2015 at 11:55
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Not anymore  ------------- --------------------------------------------- * Quod scripsi scripsi. * Hanse 371 2001, Volvo Penta MD2030D Maybe the northernmost member of Hanse club, over 65N latitude |
Posted By: Paule70
Date Posted: 19 March 2022 at 19:08
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Dear All, I have currently a Volvo MD 2030 29 hp @ 3.600 rpm with a MS25 reducing 2.47:1 driving a 16 inch 2 blade flexofold folding prop with unknown pitch. I want to upgrade to a 3 blade flexofold folding prop. As an option I will at the same time upgrade to a Volvo MD 2040 40 hp @ 3.600 rpm with same 2.47:1 MS25. after goimg through all posts I am a little bit confised now… and even more confusing flexofold offers for the 40 hp option a 17x11 3 blade prop. I understood that some of you uses such size for 29 hp. after a longer discussions with flexofold headquarter they still confirm 17x11 for 40 hp. unfortunately I dif not ask for 29 hp to get an comparison. Easiest for my issue would be to give your recommendations of prop sizes for a: 29 hp b: 40 hp Hope to get so,e answers from your swarm intelligence. Best regards Robert ------------- Hanse 371 #129 Eckernförde, Germany |