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Hanse 370 29 PS or better 40PS Yanmar ?

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beppo View Drop Down
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    Posted: 01 May 2019 at 01:23
Hi all, 

Hanse boats are not so often on the North American market so currently, I consider to buy one with a 29hp Yanmar and I am wondering if that is a little bit underpowered in certain situations?
Would it be possible to mount the 40hp Yanmar?
It appears to me that there are Hanse 370 versions out there with the 40hp engine. 
What is a speed average for the 29hp engine under calm conditions?

appreciate every information

Thanks 
Christoph 

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Pride of Waterford View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pride of Waterford Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2019 at 11:21
The 29hp engine is more than adequate for the boat.
The 40hp version is available , however, I have found that the exhaust is much noiser in this version.
The important thing IMO is a good quality folding prop.
Generally at 2,700rpm we are doing 7 knotts in flat waters.
Cruising at 2,400 at about 6-6.5 knotts.
We use a flexo fold prop.

Brod Port Lairge
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S&J View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote S&J Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2019 at 11:29
I have a 385 but I think that the requirements of the 370 will be very similar.  My Volvo Penta 29hp has always seemed more than adequate coupled with my 2 blade Gori fildingfoldi.  I tend to cruise at 6-6.5kts at 2,200 revs, using just under 2 litres per hour.   I have done about 400 hours over the 4 seasons I have had the boat.




Edited by S&J - 01 May 2019 at 11:30
H458 #159 Primal Mediterranean cruising
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plattgatt View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote plattgatt Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2019 at 21:40
Hallo Christoph,
Ich kann dich beruhigen, 29 PS sind für die H370 ausreichend.
Wir segeln auf der Elbe und im Sommer auf der Ostsee.   Die Tiede läuft mit 2,5-3,0 Knoten auf der Elbe, kein Problem.
Bei hoher Welle mit Motor legen wir zusätzlich das Großsegel an
Kreuzfahrt bei 2600 U / min. 6,0 Kn. mit 3-flügeliger Stütze
Diesel ca. 1,8 bis 2,0 l / h
H370 wird Ihnen Freude bereiten.
370#641 "aqua d`or"
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Sea-U View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sea-U Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2019 at 13:23
I too have 29hp.
I get 8.1kn when newly cleaned, full throttle and flat water.
This year my boat is dirty and I will barely get 6kn.

Against the wind and waves the speed drops a lot. My previous boat was 38', narrower and had an 18hp and was faster against the waves. :-)

I don't miss the 40hp thow.

Sea-U is a 370e #532 located SW Norway
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jeb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jeb Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2019 at 15:34
I use to have a 371 with Yanmar 30 hp. Reached close to 8kn. More importat than hp is that you have the right prop. Original was a 16x10-3L. Swapped to a 17x11-3L. Should have been 17x12-3L to get the full potential out of the Yanmar engine. Mine reved a little bit to much.
Jesper
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Post Options Post Options   Thanks (0) Thanks(0)   Quote H8jer Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2019 at 21:23
When buying our Hanse 370 I had the same question. But because the 40hp has the SD50 saildrive whereas the 30hp version has sd20 it was case closed.
You might want to search this forum about problems with "sd50". 


Hanse 370#487 30HP 3-cabin
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alettaenmarcel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote alettaenmarcel Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2019 at 07:02
i have the 40 hp version , and this engine is perfect.
Only the sd50 saildrive has every so much time a need to service its clutch, at my boat now the 2e time to do that.
The noise is a matter of better insulation.
And it has absolute more power and with the two blade folding prop I can do 8.3 knots and upwind it keeps going.
But this all is my experience and I think a 30 hp will do OK as well.
Gr Marcel
Kids Dingys 72-79 ,Several Windsurfboards 79-86 OK dingy competitions 86-92 , Trotter Pandora Race 92-98, Friendship 28 Sport 98-05, Hanse 370 06-......
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Post Options Post Options   Thanks (0) Thanks(0)   Quote vincio3 Quote  Post ReplyReply Direct Link To This Post Posted: 17 July 2019 at 11:39
Originally posted by jeb jeb wrote:

I use to have a 371 with Yanmar 30 hp. Reached close to 8kn. More importat than hp is that you have the right prop. Original was a 16x10-3L. Swapped to a 17x11-3L. Should have been 17x12-3L to get the full potential out of the Yanmar engine. Mine reved a little bit to much.

Hi all,
is this prop good for my 370e 2006 29hp Yanmar? (17x12-3L)

I really need to replace the original 2-fixed-blades prop with a 3-fixed-blades! Cruise speed at 2000rpm gives back only 5.5kn with clean hull...I guess it's poor thing reading your results with different props and same engine.

Thanks


Edited by vincio3 - 17 July 2019 at 11:44
Hanse 370e #492 2008
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