Forums > Wing Foiling General

How good is the new North Sonar?

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Created by MProject04 > 9 months ago, 18 Feb 2023
MProject04
502 posts
7 Sep 2024 7:28PM
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larsdegroot said..
I broke 2 masts in 2 weeks. I don't know what is going on. Since I bought a new fuselage C700 with the new screws.. I have 2 broken masts.


I thought my first mast was a coincidence.. but I was winging today with a friend's mast and the same thing happened! A small 360 and....... broken.
The first mast will be replaced for warranty, but what is going on? Is the new fuselage screw system not compatible with this batch of masts? Hope someone can help me out. Btw both happened with the MA1050v2, but I don't think that's the problem here..










Scary pictures !

Is it possible that the screws were overtightened ..i.e. way too much torque applied?

The geo lock only works because there will always be a mm or 2 of a gap between the fuse bottom and the mast head (thats my theory at least)

And then if one overtightens the bolt it can end up pulling a 'welded' component of the the mast out?

The problem with my theory (of how the geo lock works) is that there is no indication of how much is too much..unless North put an exact Nm number to the required torque on the screws (i dont recall reading this in the manual)

Any power tools in use?

The above OR simply a faulty mast (bad batch)
What does your North dealer say? If you are in the Netherlands you can get all the local dealer help you can wish for (big luxury compared to my context)

larsdegroot
74 posts
7 Sep 2024 7:58PM
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@Mproject04,

Offcourse i first got the standard reply from the North guy here.. did you first press the fuselage on it tightly and then screw it on...
I don't know how else i could do it, but OK.. offcourse, otherwise you cannot even tighten the screws down.

Both masts go for warranty but i don't want this problem again. And yes i tighten it down pretty tight, using the supplied Sonar T40 tool. First in the upside and then i use it sideways to tighten it down. But like you said, what is too much..? i don't know. Yes i'm in NL ;)

larsdegroot
74 posts
8 Sep 2024 12:27AM
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Just a little update. I've been investigating myself a bit, found out it's some sort of cover on top that screw plate that has been pulled out on both of the masts. My guess now is, the fuse is not fully locked on or the supplied 30mm screws are too short.
If I screw the fuselage on it now, its rock solid.

larsdegroot
74 posts
8 Sep 2024 4:26AM
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larsdegroot said..
Just a little update. I've been investigating myself a bit, found out it's some sort of cover on top that screw plate that has been pulled out on both of the masts. My guess now is, the fuse is not fully locked on or the supplied 30mm screws are too short.
If I screw the fuselage on it now, its rock solid.



Ok,... its not, its pulling the whole screwbox up when i tighten it. Well let's wait for north on this one..

UliSommerlatt
15 posts
8 Sep 2024 1:53PM
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Hi Lars,
not nice to see this.
I have been traveling the last weeks and the AWSI days are long with lots of meetings so haven't been online much. Hence the late reply here.

If you have any issues with our gear please always contact your point of purchase frist and they will get in touch with the North Customer Service team and sort things out. Once a claim is log into our warranty system we have the required details on file and are able to analyze the situation so we get to the bottom of what is going on and can resolve it. Btw. any claim will always be logged into the system and shows up in our warranty system reports.

We stand by our products and our responsibilities if there any issues that are product related we will take the required measures and resolve the situation as soon as possible.

We are already personally in touch about on another platform but please file the warranty claim with our point of purchase and we will have data in the system.

Thank you!

Uli


randomfoiler
85 posts
9 Sep 2024 3:17AM
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Can anyone post a reliable procedure to sand a whistling North stabilizer?
I have 3 and only one is quiet.
As others have reported, no amount of sanding seems to make it go away - so probably I am missing something.

Okkervile
2 posts
Monday , 9 Sep 2024 8:48PM
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I wonder if P2050 is the right fronffoil for my idea. I want to have an extrem low wind to no wind setup. I dont want to Dockstart nor Paddle me up. I wonder if a wingpump technic exists to get on foil with the P2050.
I'm 105kg has Gong Cruzader Point 135l downwind board a MA2400v2 and a MA1800v2 plus S210 and S270. Would the P2050 would work these stabilizers?
Once up on foil I want to use board pumping to keep me going. I want to do straight lines rather than making a lot of turns. I'm more interested in the pump "aerobics".
Thanks for any comments

WST
132 posts
Tuesday , 10 Sep 2024 4:49AM
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Okkervile said..
I wonder if P2050 is the right fronffoil for my idea. I want to have an extrem low wind to no wind setup. I dont want to Dockstart nor Paddle me up. I wonder if a wingpump technic exists to get on foil with the P2050.
I'm 105kg has Gong Cruzader Point 135l downwind board a MA2400v2 and a MA1800v2 plus S210 and S270. Would the P2050 would work these stabilizers?
Once up on foil I want to use board pumping to keep me going. I want to do straight lines rather than making a lot of turns. I'm more interested in the pump "aerobics".
Thanks for any comments



I have the P2050 and would not recommend it for winging. I had a very similar experience as FyrFlieWork wrote on 30.08The foils start flying at 6km/h you don't need to pump it just gets up on this speed. but it does not accelerate, you fly with mostly 13 to 15 km/h, in gust you can make it to 20km/h but faster is very hard.Also, you need to fly it very straight, if you roll it, it rolls you over. I never made any jibe with it, where my personal best is 1h45 min without any missed jibe, so around 70 jibes in a row. What was even more depressing, in this 7kn Wind, there was a 14-year guy who was flying with just an 800scm foil, it was able to pump him up and once up the foil accelerated fast enough so he stayed up. means, you don't need this foil for light wind winging, you just need a better technique to start. and yes we are not as light as this 14-year-old dude but using slightly bigger foils 1050 or 1200 should do the same with a lot more fun.I mainly have the 2050 to learn flat water paddle up, but here the same issue as FyrFlieWork said, you need to be centered and that is not as easy as it might sound. (at least for me :D)

larsdegroot
74 posts
Tuesday , 10 Sep 2024 10:25PM
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randomfoiler said..
Can anyone post a reliable procedure to sand a whistling North stabilizer?
I have 3 and only one is quiet.
As others have reported, no amount of sanding seems to make it go away - so probably I am missing something.


Which one specifically is it? The S208 ?

randomfoiler
85 posts
Tuesday , 10 Sep 2024 10:50PM
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larsdegroot said..

randomfoiler said..
Can anyone post a reliable procedure to sand a whistling North stabilizer?
I have 3 and only one is quiet.
As others have reported, no amount of sanding seems to make it go away - so probably I am missing something.



Which one specifically is it? The S208 ?


Both the S178 and the S208 ...

larsdegroot
74 posts
Wednesday , 11 Sep 2024 12:41AM
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randomfoiler said..

larsdegroot said..


randomfoiler said..
Can anyone post a reliable procedure to sand a whistling North stabilizer?
I have 3 and only one is quiet.
As others have reported, no amount of sanding seems to make it go away - so probably I am missing something.




Which one specifically is it? The S208 ?



Both the S178 and the S208 ...


I have the same with the s208. Its horrible. Been sanding it a couple of times with some good advise of how to sand it.. but it's not helping. For now I only use the S210, that one is quiet.

WindyBear
22 posts
Wednesday , 11 Sep 2024 2:00AM
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Okkervile said..
I wonder if P2050 is the right fronffoil for my idea. I want to have an extrem low wind to no wind setup. I dont want to Dockstart nor Paddle me up. I wonder if a wingpump technic exists to get on foil with the P2050.
I'm 105kg has Gong Cruzader Point 135l downwind board a MA2400v2 and a MA1800v2 plus S210 and S270. Would the P2050 would work these stabilizers?
Once up on foil I want to use board pumping to keep me going. I want to do straight lines rather than making a lot of turns. I'm more interested in the pump "aerobics".
Thanks for any comments



Tried wingfoiling the P2050 on an Alu 72 mast and s208 the other day. Terrible to wingfoil on. Crazy slow and hard to turn and not fast to get onto foil either. Like my dealer said (as he looked at me puzzled when I mentioned I gave it a go )- it's not designed for wingfoiling. During the same session I jumped onto the dw1400 next and that is a magic foil! some of the longest flagged rides and flights without a wing in my hands (dropping the wing using an anchorman) ever, and not even in any swell of consequence. may not suit your needs though by the sounds of it.

WindyBear
22 posts
Wednesday , 11 Sep 2024 2:11AM
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larsdegroot said..
@Mproject04,

Offcourse i first got the standard reply from the North guy here.. did you first press the fuselage on it tightly and then screw it on...
I don't know how else i could do it, but OK.. offcourse, otherwise you cannot even tighten the screws down.

Both masts go for warranty but i don't want this problem again. And yes i tighten it down pretty tight, using the supplied Sonar T40 tool. First in the upside and then i use it sideways to tighten it down. But like you said, what is too much..? i don't know. Yes i'm in NL ;)



Select to expand quote
larsdegroot said..
@Mproject04,

Offcourse i first got the standard reply from the North guy here.. did you first press the fuselage on it tightly and then screw it on...
I don't know how else i could do it, but OK.. offcourse, otherwise you cannot even tighten the screws down.

Both masts go for warranty but i don't want this problem again. And yes i tighten it down pretty tight, using the supplied Sonar T40 tool. First in the upside and then i use it sideways to tighten it down. But like you said, what is too much..? i don't know. Yes i'm in NL ;)




Select to expand quote
larsdegroot said..
@Mproject04,

Offcourse i first got the standard reply from the North guy here.. did you first press the fuselage on it tightly and then screw it on...
I don't know how else i could do it, but OK.. offcourse, otherwise you cannot even tighten the screws down.

Both masts go for warranty but i don't want this problem again. And yes i tighten it down pretty tight, using the supplied Sonar T40 tool. First in the upside and then i use it sideways to tighten it down. But like you said, what is too much..? i don't know. Yes i'm in NL ;)


So far regarding tightening of screws I have never needed to use the sideways option on the North torx tool - where more torque can be applied. It's always been sufficient to just tighten the two M8 fuse to mast bolts firmly but not overly firm using the upright grip.

having said that, I did test a p2050 wing the other day wingfoiling and then put a DW1400 afterwards. During the DW1400 session there was a sort of occasional pinging/squeaking coming from the foil, I later discovered the screws were a bit loose. I suspect the p2050 put the fuse/mast commection under some pressure. I've ordered a spare set of screws now (one of the plastic washers was lost) and will probably be applying more torque when the DW1400 goes on.
Not a real concern for me that there is anything wrong with the system as I suspect I may be under tightening. But I'm always afraid to overtighten. Maybe another solution is to keep a tool on hand to check on the water if you suspect it is loose- rather than tightening like crazy before a session.

wikyt
QLD, 8 posts
Thursday , 12 Sep 2024 7:33PM
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randomfoiler said..


larsdegroot said..



randomfoiler said..
Can anyone post a reliable procedure to sand a whistling North stabilizer?
I have 3 and only one is quiet.
As others have reported, no amount of sanding seems to make it go away - so probably I am missing something.





Which one specifically is it? The S208 ?




Both the S178 and the S208 ...



(170) Delta Hydrofoils Pro Tips: Sanding glazing compound and finishing trailing edges - YouTube .....Also the bolts that came with the alu board adaptor are M8 t40 40mm and seem to sit through the new fuse to the same depth as the old fuse and fuse bolts ...

PatsSurf70
19 posts
Saturday , 13 Sep 2024 11:46PM
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Any advice what foil size to learn for kids? My kids are 50-55kg. Thinking of buying a MA1350 or MA1200 for them. Will the 1350 be to big?

LucasUK
11 posts
Saturday , 13 Sep 2024 11:57PM
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PatsSurf70 said..
Any advice what foil size to learn for kids? My kids are 50-55kg. Thinking of buying a MA1350 or MA1200 for them. Will the 1350 be to big?


would go SF1080

MProject04
502 posts
Saturday , 14 Sep 2024 2:39AM
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Hmm .. challenging question: the SF is a tad more nervous than the MAv2. I'm comparing SF1080 Vs MAv21500 which I had the chance to ride. The MAv2 is more on rails which could feel more stable for learning.

Doesn't North have now a new beginner foil?

PatsSurf70
19 posts
Saturday , 14 Sep 2024 4:52PM
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Agree, want a MA. Is more the size I'm not sure. MA v1 is also fine for learning and better price. Need an easy lift and stable pitch and fly on rails.

PatsSurf70
19 posts
Saturday , 14 Sep 2024 4:52PM
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Agree, want a MA. Is more the size I'm not sure. MA v1 is also fine for learning and better price. Need an easy lift and stable pitch and fly on rails.

larsdegroot
74 posts
Saturday , 14 Sep 2024 4:58PM
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Still think the MA 1050 especially is a really good front wing. I really progressed on that one. It's fast, turns great and really easy going. I now have the ma1050v2. It's not particularly faster, but the pumping ability is better. That was my only downside on the v1.

nixmatters
5 posts
Sunday , 15 Sep 2024 6:48AM
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LucasUK said..
Any release date on the 65cm fuse ? was hoping it that they will release now but nothing...


I have one on order with delivery at North in Holland first week of November. Let's see...

Okkervile
2 posts
2 hours ago , 17 Sep 2024 12:57AM
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Uli Sommerlatt wrote some weeks ago that SF1230 might be the best light wind option for a 95kg guy. I wonder if lift is really better compared to a MA2400v2 or MA1800v2. Or is glide better to survive windgaps



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"How good is the new North Sonar?" started by MProject04