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Polar diagram for 430 ?

Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 430
Forum Description: 430 Hints and Tips
URL: https://www.myhanse.com/forum_posts.asp?TID=1326
Printed Date: 27 March 2026 at 03:29
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Topic: Polar diagram for 430 ?
Posted By: sveino
Subject: Polar diagram for 430 ?
Date Posted: 04 June 2007 at 20:40
Does anyone know where I can find polar diagrams for the 430 ?



Replies:
Posted By: stefano
Date Posted: 06 June 2007 at 12:04

http://www.myhanse.com/uploads/20070606_120344_HA430polar.pdf - uploads/20070606_120344_HA430polar.pdf



Posted By: Alex Faber
Date Posted: 07 June 2007 at 10:49
Thank you very much.

-------------
s/y eMotion (H430e #24)


Posted By: sveino
Date Posted: 07 June 2007 at 21:48
Thank you !


Posted By: golf_mike
Date Posted: 17 October 2007 at 08:59
from that diagram seem that the differences are very small and the 140% is usefull only under the 10 knots and for no competion use the 105% should be the right choice

any one is able to provide the diagram with the self-tacking jib?

thank you very much

marco fron Italy



Posted By: Polux
Date Posted: 21 February 2008 at 00:18

hello! Congratulations, this site is great and is amazing the quantity and quality of information on the new Hanse 430. That proves that the owners of this boat are enthusiastic sailors and that is a good sign.

I hope you can shake some doubts I have on this boat. I should say that the first time I laid eyes on it I thought that this was the boat  I was looking for: Fast and sporty without losing the cruising attributes. But later I got suspicious of the small winches, of the shape of the jib on the self-taking rail (photos) and the last drop was a boat magazine comparative test with an Oceanis 43 and a Dufour 425.

 

All the boats were tested simultaneously with 17k of wind. The Dufour was faster against the wind, the Beneteau faster downwind (all boats with standard geenaker) and they reported that the Hanse was a lot more difficult to control downwind (they lost control several times).

 

That comes as a complete surprise to me. The 425 and the Oceanis are pure cruising boats and I would say that the Oceanis doesn’t look like a fast boat.

 

That polar speed chart shows a very fast boat and that confuses me. It is for real? Can someone who knows the boat well confirm those speeds? A boat with that polar should smoke the 425 and the Oceanis!!!

 

Thanks

 

Manuel

 



Posted By: Alain & Anne
Date Posted: 21 February 2008 at 05:21
Hi Manuel,

Don't worry, the boat sails very well...and fast!
Regarding the test nobody knows who was on crew, who prepared the boat,what was the load ..... and so.
I remenbered that one of the french boat has taylor made sails... that helps. The lost of control downwind is a typical beginner's error with Hanse big main!!!Lack of boom wang.
I sailed my own Hanse in downwind with up to 38knt (2 reefs in the main and full jib) and we never lost control of the boat either at helm or under pilot.
Regarding the numbers, I found ours pretty closed to the polar.

But I am probably biased... as every boat owner.....



-------------
UHAMBO 430e#004
White hull-teck deck-Yanmar 55hp-long range cruising
OCC

Our blog: www.uhambo.fr



Posted By: Alex Faber
Date Posted: 21 February 2008 at 07:36
Manuel,
Agree with you that the standard sails are not great at all. The size of the winches is not a problem, to my opinion that is OK. You just need to replace some blocks for a bigger size and replace the halyards by Dyneema or Vectran.
But, hull and deck are great! She is fast and very strong.
As soon I know her good enough, I will replace the sails and she will be a rocket ship (easily matching the polars).
Can you please tell me where I can find that test?
Thanks in advance.

-------------
s/y eMotion (H430e #24)


Posted By: Alain & Anne
Date Posted: 21 February 2008 at 08:15
Hi Alex,

The "so called" test was published in Voile Magazine N°144 dated december 2007.
I could make a private copy for you.


-------------
UHAMBO 430e#004
White hull-teck deck-Yanmar 55hp-long range cruising
OCC

Our blog: www.uhambo.fr



Posted By: Polux
Date Posted: 21 February 2008 at 22:25

First of all I want to thank everybody and declare that I don’t want to piss nobody even if I ask some not very comfortable questions. This is one of the boats that I consider to have and the questions represent my doubts about the boat. As I say, I am grateful for your help.

 

Alex, as Alain said the test was published on the December edition (2007) of Voile Magazine. Alain, I don’t understand why you call that test a “so called test”. Voile Magazine is an old and good sailing magazine. I have to say that I have read several other Hanse 43 magazine boat tests, including the one on Yachting Monthly, the comparative on the Yacht.de and this French one. It seems to me that the French one has the advantage of a real comparative test. I mean all the boats in the water at the same time, with the same wind and that was not the case with the German (so called) comparative test.

 

Alain, I believe that you have reason, in what concerns those stability problems sailing downwind, I mean the Hanse has a mainsail much bigger than usual and could need different sail adjustments.On the test they say that next day they have solved the problem putting a reef on the main sail. This means that with 17k wind the boat should go downwind with the standard Geenaker and already with a reef on the main?

 

Alain, about one of the boats having “tailored made sails” that is not really true. The boat, the Dufour 425, the one that could go against the wind faster and with the better angle, was equipped with good cruising sails, an option for the boat, not tailor made. Those sails are the same I have in my boat. Very good cruising sails, but not even racing sails.

 

And that option brings to me one of the things I don’t like on the Hanse, I mean as Alex says, it looks the Hanse sails are not great, but Hanse doesn’t propose a performance kit.

That seems to me a shortcoming. I don’t know about the options on the Dufour 425 (it is not an option for me, I don’t like the interior disposition) but obviously they have performance sails as an option. The Jeanneau 42i has a compressive performance kit, with bigger mast, longer and lighter keel, Dyform on the standing rig and Dyneema on the running rig, bigger winches and performance cruising sails (the same kind as Dufour).

 

Such a kit represents a big economy if you intend, like Alex, optimize the boat and change sails and cables to make it a fast boat.

 

Why not propose to Hanse the availability of a kit like that? After all the Hanse 43 looks sportier than the other boats on its class but the others have performance kits and the Hanse comes with not so good equipment and doesn’t propose a performance kit, not even good sails?

 

It seems to me that this forum has the means to bring this subject to Hanse’s attention.

 

What do you think about this?

 

(Sorry for the long post)

 
Manuel


Posted By: Rubato
Date Posted: 23 February 2008 at 16:59
To the extent that all Hanse's have similar characteristics (large mains, similar shaped hulls) and since in some respects the 430 is the big sister of my 400, I offer the following comments - buy the Hanse!!!! LOL
 
Seriously though, the reason some manufacturers offer performance packages for their boats, including taller masts giving more sail area, is that the original offering is lacking in performance (one could say low SA/D ratio, or very cuising oriented). This is not the case for the Hanse.
 
Next comment is that a lot of builders (and even those modifying their existing boats) are going for the large main and no overlapping foresail combination. We have a good selection of boats that are racing here in Vancouver and this combination is now recognized as the latest/best way to go.
 
I had my 400 in an overnight race last year where winds were gusting into the 30s. For most of the night we were racing downwind under spinnaker with a following sea - challenging conditions to say the least. I gained confidence at the helm very quickly as the Hanse was very predictable. Even when you do make a mistake and you wipe out (broach), the Hanse does so very gently and it is easy to recover.
 
Lastly, I saw a comment above that the 430 doesn't have a boom vang. That surprises me, if you're going to race her, put one on - some of the other guys that have the 430 might be able to give (better) advice for that.
 
Cheers
Steve


Posted By: seileren1
Date Posted: 29 February 2008 at 11:11

How fast is the 430? An interesting question because the boat gives the impression that it is very fast.

 

Indeed it performs well, but is not at racing boat. According to the handicap system LYS it will have a similar performance as the Bav 42 match, Solana 40, Dufourt 40, Arcona 400, and Grand Soleil 37.  This year it will be a few more Hanse 430 racing here in Norway so perhaps we will know more about the boats competitiveness.

 

In other words, the boat is a decent cruiser /racer with a stunning design.  

 

Another reason for buying the 430 is that the boat is solidly built. Lots of thick laminate which is well reinforced, gives peace of mind in shallow waters…



Posted By: Polux
Date Posted: 29 February 2008 at 18:14

Thanks. That’s what I am looking for, I mean yardstick classes. But I have not yet found the Hanse 430 classified on any.

Regarding the Bavaria Match 42 and the Dufour 40 it is odd. The Bavaria is much faster and has a higher rating on the yardsticks I know of.



Posted By: victor
Date Posted: 01 March 2008 at 17:36
I have just bought 430e with the shoal draft keel. If anyone aout there is sailing a shoal draft 430, I would like to read your comments on performance.

-------------
vcp


Posted By: seileren1
Date Posted: 02 March 2008 at 13:01

Well the LYS system is a handicap system where each boat receives its individual LYS number. To compute a boats initiall Lys number there exists a fairly complicated formula taking into account displacement, sail types etc.

 

The Lys number is adjusted annually and takes into account the performance of the boat type. Over the years the system has proven itself to be a very good indicator of the boats performance.

 

When it comes to the Bav 42 match it has a LYS number of 1.34 while the Hanse 430 has 1.33 and the Dufour 40 has 1.32. This means that for a 2 hour regatta (sailing time) the Bav will have an adjusted time of (1.34 * 2) 2.68, Hanse will have 2.66 and the Dufour 2.64.

 
I also checked the  Bav 38 which has a LYS number of 1.31

 

In larger regattas her in Norway, we are competing in classes. For instance in on larger regatta, the Hanse will normally participate in the 1.29 - 1, 34 class.

 

Hope that helps.

 

Cheers

 

 



Posted By: tingeling
Date Posted: 28 March 2008 at 20:33
It is interesting with LYS-ratings and polardiagrams and soforth. One should be aware of the fact that similar boats may have quite different LYS-rating as the sails, propeller, spinnaker etc may have different measurements and proportions. I myself was very surprised to be"penalized" with the high 1,33 Lys on my Hanse 400e with a masthead genaker.
When it comes to polar diagrams from Hanse I recommend you look at the polar for the 400 and compare it with the 430...one of the must be wrong...and both have a strange similarity between the two genoa sides of the diagram. I do gather the 105% genoa is not the selftacking jib though.
 
Tingeling


Posted By: seileren1
Date Posted: 31 March 2008 at 12:55

I think the essence of this discussion both in this forum and in others, is that Hanse boats are not at fast as we would like them to be, and that the difference between the 370, 400 and 430 is marginal at best. This despite that they are marketed as performance cruisers. As for the 430 its more like a sheep in wolfs clothing – but very attractive and functional clothes thoughWink

 
Cheers


Posted By: Adam
Date Posted: 01 April 2008 at 21:55
seileren1: Pretty fast sheep though :p

If for some reason you missed the results from the baltic sprint cup:
http://2007.balticsprintcup.com/fileadmin/bsc/Results/results_overall.html

Also, here you can find the report from the crew of the 430e "Frühstücksdirektor":
http://www.hanseyachts.com/EN/Events/balticsprintcup.aspx

Looks to me that with the right sails and crew, the hanse 430e flies.


Posted By: Polux
Date Posted: 02 April 2008 at 00:05
Originally posted by Adam Adam wrote:

seileren1: Pretty fast sheep though :p

-----

Looks to me that with the right sails and crew, the hanse 430e flies.

 

Impressive results. Great hull, big initial stability, but different mast and racing sails.

 

I don't think standard sails are very good and I really think Hanse should offer a performance kit for this boat as an option. As it is, changing sails for good ones it is not only complicated but a lot more expensive.

 

I really would like to be as convinced about the Hanse 430 final stability and the ability to right itself up, after a capsize as I am about the  speed potential.



Posted By: panos
Date Posted: 02 April 2008 at 00:44
Hi,
I dodnt have any experience in complete inversions, but have suffered several broaches and knockdowns and I cann't imagin how an inversion can happen to a boat with a keel like Hanses (deep and all the weight to the lower end). During the worst of the broaches (the mast top hit the water) the boat righted itself in seconds.
Of cource if you calculate the numbers, boats with a flat deck without superstructure have low ability to right themselves up in theory just as catamarans (in theory and practice). But in practice I think that this is not going to happen with monohulls because the first big wave will move the boat away from the inverted equilibrium point, and then the boat will revert to normal in seconds.IMHO of course.
Being fast and competitive is always a tradeof between being really fast and having a good certificate. Actually all boat races against themselves, trying to beat the predicted time. Sails are very important, but boat preparation and the team are of equal importance. Any boat is as fast as its crew!


-------------
Panos

Hanse 630e - selling her -


Posted By: Impressa
Date Posted: 02 April 2008 at 09:58
Originally posted by Polux Polux wrote:

Originally posted by Adam Adam wrote:

seileren1: Pretty fast sheep though :p

-----

Looks to me that with the right sails and crew, the hanse 430e flies.

 

Impressive results. Great hull, big initial stability, but different mast and racing sails.

 

I don't think standard sails are very good and I really think Hanse should offer a performance kit for this boat as an option. As it is, changing sails for good ones it is not only complicated but a lot more expensive.

 

I really would like to be as convinced about the Hanse 430 final stability and the ability to right itself up, after a capsize as I am about the  speed potential.

 
Here is perhaps what you are looking for : http://www.hanseyachts.com/EN/Customer%20service/News/News-Detail.aspx?id=120 - http://www.hanseyachts.com/EN/Customer%20service/News/News-Detail.aspx?id=120


-------------
470e #179, Vaxholm


Posted By: seileren1
Date Posted: 02 April 2008 at 12:41
 
yes I know about the result and I have actually been onboard the boat, when we got our 430 in Greifswald. Great results, but keep in mind that this boat was stripped inside, it had good sails and a great crew.
 
 
I am looking forward to seeing the results from ordinary 430s this summer, hopefully I will be proven 100% wrong.
 
Cheers


Posted By: Polux
Date Posted: 14 April 2008 at 22:23
Originally posted by panos panos wrote:

Hi,
I dodnt have any experience in complete inversions, but have suffered several broaches and knockdowns and I cann't imagin how an inversion can happen to a boat with a keel like Hanses (deep and all the weight to the lower end). During the worst of the broaches (the mast top hit the water) the boat righted itself in seconds.
Of cource if you calculate the numbers, boats with a flat deck without superstructure have low ability to right themselves up in theory just as catamarans (in theory and practice). But in practice I think that this is not going to happen with monohulls because the first big wave will move the boat away from the inverted equilibrium point, and then the boat will revert to normal in seconds.IMHO of course.
 

Hi,

Sorry for taking so much time for replying but I have lots of work and I really wanted to run some stability curve comparisons before replying.

 

Yes, you are right; the Hanse 430 is making a lot of force to right itself up on a 90º knockdown. But you are wrong in thinking that “the first big wave will move the boat away from the inverted equilibrium point, and then the boat will revert to normal in seconds”. I think it will stay that way for hours.

 

That’s a boat that should be taken with care in bad weather, especially if racing (lots of sail). The boat will be OK on a 90º knockdown, but if a broache occurs at the same time a big wave hits the boat and the knockdown goes over 90º to as little as 100º, I have doubts that boat will right itself up. At 100º the boat is making very little force to right itself up and with the weight of the radar and the furling genoa I fear it will not be enough.

 

On this boat having any weight high on the mast (radar, furling genoa, furling mainsail) is a very bad idea.

 

 



Posted By: panos
Date Posted: 15 April 2008 at 00:11
This will help to compare apples with apples :
 
 
                                           HANSE 430           oceanis43 
hull length                              13.15                     12.75 
waterline length                     12.00                      11.25
beam                                        4.18                        4.15
total sail area (beating)       123.50                      91.00 
gennaker                             140.00                     113.00
main sail                                 63.00                       41.5
displacement                          10.40                         8.90
design                               Judel-Vrolijk                Berret
D/L                                          175.3                      182
Sa/D                                         25.9                       20.90
stability   index                           1.90                        1.99
where D/l is the displacement/waterline index (the lower the faster),
Sa/D the sail area/displacement index (the higher the faster) and stability the tendency to capsize (values under 2=stable, values over 2 not stable).
For more details look to http://www.sailingusa.info/cal__sad_ratio.htm - http://www.sailingusa.info/cal__sad_ratio.htm
From the above numbers, especially D/L and Sa/D I conclude that it is impossible for Oceanis to be nearly as fast as the Hanse. The 430 will fly away. It is also more stable, although not the boat I would choose to circumnavigate the globe.


-------------
Panos

Hanse 630e - selling her -


Posted By: seileren1
Date Posted: 15 April 2008 at 09:07

There is a rumor (which probably you’ll hard about) reported in a reputable web page that Hanse is considering launching a racing version of the 430 - Hanse 430 Competition; Carbon rig, less weight, different keel profile etc.

Panos, be advised that the sail area used in your table is with the optional Genoa. With the standard jib its only 102 sqm.

 

 Cheers



Posted By: Alain & Anne
Date Posted: 15 April 2008 at 10:31
Hi Panos,

Very interesting comment......as I made the choice of the 430 to circumnavigate the globe.
Hope friends and family won't read this forum too much, as they would have preferred the traditional OVNI or AMEL choice!!!!
We are very busy in preparing Uhambo for our departure in June..... Will let you know a bit more when I'll be lying in some marina with a glass and.....


-------------
UHAMBO 430e#004
White hull-teck deck-Yanmar 55hp-long range cruising
OCC

Our blog: www.uhambo.fr



Posted By: Alain & Anne
Date Posted: 15 April 2008 at 10:33
Hi Seileren1

I think that this link is all about that rumour.

"http://www.hanseyachts.com/EN/Customer%20service/News/News-Detail.aspx?id=120"


-------------
UHAMBO 430e#004
White hull-teck deck-Yanmar 55hp-long range cruising
OCC

Our blog: www.uhambo.fr



Posted By: Polux
Date Posted: 16 April 2008 at 00:38
Originally posted by panos panos wrote:

This will help to compare apples with apples :
 
stability   index                           1.90                        1.99
where D/l is the displacement/waterline index (the lower the faster),
Sa/D the sail area/displacement index (the higher the faster) and stability the tendency to capsize (values under 2=stable, values over 2 not stable).
For more details look to http://www.sailingusa.info/cal__sad_ratio.htm - http://www.sailingusa.info/cal__sad_ratio.htm
From the above numbers, especially D/L and Sa/D I conclude that it is impossible for Oceanis to be nearly as fast as the Hanse. The 430 will fly away. It is also more stable, although not the boat I would choose to circumnavigate the globe.
 

I am not saying that the boat has not a good potential for speed (much more than the Oceanis) I was saying only that the Hanse 430 has an unusually big inverted stability and I am not saying that based on almost meaningless data but on the stability curves provided by the manufacturers, the ones that are used for certifying the boat. Those curves are pretty close to reality and if there is some difference is for worse, because they don’t take into account the weight of the furling sails and radar.

 

The ones I am posting are RM curves (moments), they are in T/m and all boats are in maximum charge condition, except the Bavaria 36 that is on minimum sailing charge condition.

 

I have made this graphic for making a personal evaluation of the Hanse 430 stability compared with some of the boats I am considering. I didn’t consider the Oceanis 43 because I prefer the other two and because it would give me more work, but the Oceanis 43 stability curve is not very different than the one from the Jeanneau 42.

 

I have considered the RM 1200, the Jeanneau 42 and the Hanse 430. The Bavaria 36 serves as a measure in what regards inverted stability.

 

The overall best curve is the one from RM 1200. It is only a 40ft and the lighter of the three boats (7,8T against the Hanse’s 10,4T) but it manages to have only less 4% of the Hanse’s positive stability and 93% less negative stability. The negative stability of the Jeanneau is similar to the RM’s.

 

The Jeanneau and the RM have not a particularly good inverted stability (they are too stable for my taste), I would say they are slightly below average, they can not compare with the inverted stability of a Malo 43, a Finngulf 41 , a Wauquiez 45 or a J 133. Comparing with the data I have seen about the issue, I would say that while the last ones would right themselves up (giving a sea condition capable of rolling them) in about 30 s the Jeanneau and RM would need an average time between 1 and three minutes.

 

For the Hanse 430…the energy needed to overcome that huge inverted stability is bigger than the one needed to invert the Bavaria 36 (1,2 X). The Bavaria 36 is a class A boat and that means that it can stand 7m waves. There are several that circumnavigated and several that have been caught in storms without being rolled.

 

Of course, for inverting the Hanse 430 (from a 0º heel position) you need two times more energy than the one needed to roll the Bavaria 36, but that is not true if the boat suffers a broach and comes to 90º of heel. If both boats are at 90º of heel you need more energy to invert the Bavaria, comparing with the one needed to invert the Hanse. That’s why I was saying that you should take a lot of care if you decide to carry a lot of sail in bad weather (racing).

 

I could have said nothing. I have already taken away my doubts but I believe that sailors should know how their boats behave even on those situations that almost never happen. If you know your boat you know how to act, even in extreme conditions…and after all the Hanse 430 has also a big positive stability…just keep it upright and if there are waves around, away from broaches.




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