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Registrace 5. 04. 2011
Interview with Seb Menzies winner of the 2017 New Zealand Optimist Nationals
Seb Menzies won six races using the North Sails MZX4
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Video
Interview with 2017 Spanish Optimist Champion Maria Perello Mora
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Maria talks about her win racing with the North Sails R-4 Mainsail
North Sails Optimist Tuning Guide
zhlédnutí 9KPřed 7 lety
North Sails Optimist Class Experts Giulio Desiderato & Thomas Nilsson talk through the latest tuning advice for Optimist sailors. They present this video from the shores of Lake Garda where the 35th Garda Optimist Meeting saw over 1000 sailors competing over the Easter weekend 2017.
2016 420 World Champions Diego and Pedro Costa
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Congratulations to the Portuguese team and brothers Diogo and Pedro Costa who won the 420 World Championship in San Remo, Italy
North Sails J70 Wing-on-Wing
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Complete article with instructions on how and when to use the Wing-on-Wing technique available at onedesign.com. Sign up to receive updates like this by email at onedesign.com.
Etchells Jib Battens - How and when to use
zhlédnutí 2,6KPřed 8 lety
North Sails Etchells jibs now come with multi length battens for ultimate performance. This video explains when and how to use them.
Raul Rios - Tuning the North Snipe sails
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Raul Rios talks about the North Sails that he used to win the Nationals
Raul Rios / Kara Voss: Crew Communication 2015 Snipe Nationals
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Raul Rios and Kara Voss about good crew communication during the 2015 Snipe Nationals. Raul and Kara used North Sails to win the 2015 Snipe Nationals.
Raul Rios - Preparation at the 2015 Snipe Nationals
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Boat and routine preparation that Raul Rios and Kara Voss followed during the 2015 Snipe Nationals. Raul and Kara used North Sails to win the 2015 Nationals!
Raul Rios' Tuning Numbers at the 2015 Snipe Nationals
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In this viedeo-intervew, 2015 Snipe National Champions Raul Rios/Kara Voss explain in details the tuning information (rake, shrouds, spreaders) that they used at the Nationals. Raul and Kara used North Sails to win the 2015 Nationals!
FinnBurdick, 2015 MC Scow National Champion
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9 year-old Finn, racing with his father Andy Burdick, win the 2015 MC Nationals
2015 Etchells Nationals - San Diego
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Etchells Nationals, San Diego - A brief movie tells the story of the camaraderie of the Etchells class, its high level of competition and the North involvement in helping teams sail faster, better and ultimately have a great time. Video by Patricia Lapadula
Light Air Gybe Step-by-Step with Tim Healy - Read below
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1. Clear all spinnaker sheets and make sure no one is stepping on them 2. Initiate gybe with slow turn down and slowly ease the spinnaker sheet to get clew forward 3. Vang on to firm up main leech (See step 6) 4. Roll hard when boat is turned downwind and speed up turn 5. Sheet spinnaker around with new sheet. Second crew back pulls on sheet, back and down 6. Turn up to fill spinnaker and press...
J/70 Boat Handling with Vince Brun
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2015 J/70 Boat Handling video with North Sails One Design expert Vince Brun in San Diego. Narration by Alex Camet.
Etchells Jib Battens - How to install
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How to properly install and remove the battens on your North Etchells jib.
J/70 Key West 2015 - Tim Healy's tips for conditions 10-15 knots
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J/70 Key West 2015 - Tim Healy's tips for conditions 10-15 knots
J/70 Light Air Tuning Tips from Key West 2015
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J/70 Light Air Tuning Tips from Key West 2015
2014 J/70 Worlds - Downwind - Crew Placement
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2014 J/70 Worlds - Downwind - Crew Placement
Snipe Sailing Upwind Technique - Western Hemispheres 2014 - San Diego, CA
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Snipe Sailing Upwind Technique - Western Hemispheres 2014 - San Diego, CA
Interview 2014 Sabot National champion Max Brill
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Interview 2014 Sabot National champion Max Brill
Interview 2014 Sabot National Champion Max Brill Part 1
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Interview 2014 Sabot National Champion Max Brill Part 1
Interview Max Brill, 2014 Sabot National Champion
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Interview Max Brill, 2014 Sabot National Champion
420 Spanish Cup 2014,Club Nautico Islas Menores Murcia
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420 Spanish Cup 2014,Club Nautico Islas Menores Murcia
Tge current one is wrong, from an angle perspective is correct however he's not taking into account the effect of tidebon boat speed. Both boats will slow when they tack as in SOG . But boat that started at pin has to sail slowee for longer
you wrong about the current
Is there a galley & head onboard ?
Man, this has to be the most inspiring post ever. The effort put into this work is flawless. I can see the details and such that are used to make it what it is. We’re living in a new generation of work, and it’s getting better, but you actually made a whole new generation of art. The depth made into this is just amazing, it’s just flawless what you have done here. The intelligence this price uses to emphasize the meaning is amazing. It’s like the renaissance all over again. You should become a legend, a historical figure. Your work should be seen to millions. No. Billions. You my man have changed my perspective of the world and have inspired me to do what you do. I thank you for that. You are the Albert Einstein/Vincent Van Goh hybrid of our age. Please, use that power wisely for you can also cause a world catastrophe.
我哋要好好睇住個圖學習大家一定要成功
How much cost this sail boat in Us dolar
30-70k
They are not anticipating those puffs at all
Really helpful and very well presented…thanks…
There is a much simpler rule - but I am not going to tell it to you because you might beat me in a race.
Lots of people commenting on the Current vector around 13:00. What Peter didn’t really do a great job of explaining is that while the current velocity would move the boat to the left, in doing so it creates an apparent wind that moves left to right. And remember, it is the wind direction that will determine distance traveled. So his resulting left to right vector and the associated left shift is correct.
You can determine how close to the start line you are if you are in the middle of te line but you must measure the angle some time before the start from the committee boats that the line lies on. When you are approaching that angle you know how close it is in front of your bow by referencing the compass angle and allowing for your bow is in front of your measurement point. But you have to do the homework by checking first.
This guy is drunk as hell
Any real sailor is still drunk at the 10am start of a saturday seminar and Peter Isler is a very real sailor
From 12:00 to 13:30 is absolute b*ll*cks. Pick the ideal place and tack to cross the boundary where the current starts. As neither end of the line is favoured, the time/distance to get to that chosen point is the same regardless of where you start on the line.
@Glenn Watson No, I think you are missing the point. Yes the pin end boat is further to the relative windward, but in this scenario the frame of reference has the water stationary, and as such the mark we're aiming for is not only far upstream, but constantly moving at 2kt eastward. The ideal crossing point into the current may even be to the east of the boat starting at the committee boat end. Let's work out some figures as an example (I'm assuming more of a club fleet boat than an AC75 below) Assumptions: Angle of beat 45° to true wind relative to water (rtw) Speed of boat on beat half of true wind speed (rtw) Consider when boat in current on Port tack True wind speed (rtw) = sqrt(10^2 + 2^2) = 10.2 angle of wind (rtw) = atan(2/10) = 348.7° velocity of boat (rtw) = 5.1 kts @ 033.7° VMG northwards = 5.1 cos(33.7) = 4.24 kts VMG eastwards = VMG over water - current = 5.1 sin(33.7) - 2 = 0.83 kts velocity of boat relative to mark = sqrt(4.24^2 + 0.83^2) @ atan (0.83/4.24) = 4.3 kts @ 011° You should cross into the current 191° south of the mark, (I'd go for due south to allow for lulls when you may drift westwards). If (as you should) you are going for 191°, starting at the middle of the start line, you should tack onto port at just under 30% of the beat (assuming that the current starts at 50% of the way due north to the windward mark). Slightly earlier if starting at the pin end, slightly later if starting at the committee boat. There is certainly no advantage to either end of the start line.
In summary the pin end boat is further 'upwind', but they have both massively overstood the mark.
@@petermcfarlane529 I would not have used as strong words as you do, as you have made some assumptions that may not be right... In the video, Peter indeed states that the boats have not reached the layline yet when they hit the current. That's contradictory to your assumption, which I guess is that the boat of the left has passed the layline. So even though the layline is perfectly calculated with a sweetspot at 11°, you don't know where this mark is, other than that neither are yet on the 11° line to the mark. To your account, Peter said the boats hit the current half way up the boat, which indicated that the boats are on the layline by this time. But for what we know, then RC may have accounted for the current, and placed the mark far left. Anyway, the points is that a current generates a wind shift, and when sailing into a cross current going left you experience a left shift and should tack to port.
Excellent narration here. Thank you for posting.
I take it that trying to go wing on wing by jibing the kite is not a good idea
I don't understand why they're furling the jib. If they are really planing, wouldn't you want to turn pretty fast and do a skiff jibe?
Hi do you still monitor this site? Would this be legal for Etchells One design racing????
Amazing, thanks!
Thanks
Thank
Thank
I know
Peter Isler is of course right at the 12 minute point about the effect of currents . A simple explanation of this current's effect is that from the time they hit the current it effectively pushes the apparent wind to the left which gives the boat on the left an upwind position on the course. That is all since everything else on the course is the same for each boat. Sail an IOM and you will be able to observe this simple fact if currents are present.
Good YT. But: Being an old style 470, Javelin and 5o5 sailor ... barefoot on board is a no go ! - There is almost no wind, it's become another topic above 3-4 ... Nice YT anyway... Sailing is an experience sport... 😉
Could you do this in a Melges 20 in sub 10 kn?
Re: The situation at 13:00 minutes where the wind is from the North and the current from the East (moving right to left). Based on my vector addition, the resultant is a shift to the RIGHT not the left. Based on my rationale, both boats get a lift. However, the boat from the pin end is sailing into the current for a longer distance than the boat that starts at the Committee boat end. To me, this means that the boat on the committee boat end has a huge advantage. If the boat that starts on the committee boat end immediately goes on port tack after the start, and take advantage of the lack of current, then tacks on the lay line. When it gets to the gulf stream, the boat starting on the Committee boat end will use the current to it's advantage. The current will then bring the boat down to the pin. The boat on the pin end would be fighting the current in the gulf stream for the entire second half of the first leg. What am I missing? Please explain why I'm wrong.
Because a current that is right to left, generate an apparent wind coming from the left (west). Imagine the same current of 100kts...like being over a train. You will feel the wind coming from the opposite of the direction of the train itself...that is...from left to right. So, because of the vector sum, because the current has added a westerly component, the resultant shift will be to the left. For the sake of clarification, the wind from 360 will appear from 350 (no precise calculation has been made).
@trainspot74 responded to your first question. Your second assumption is that the boat on the pin would stay longer in the current than a boat starting at the committee boat end. No matter what end of the line you start, or what tack you are at, you will reach the current exactly at the same time. This means the boats spend the same amount of time in "universe 1" with wind from top. And they spend the same amount of time in "universe 2" with a wind shifted to the left, until the pin starter has crossed ahead.
I could not understand more than a word now and then. Sorry.
#rotfl
what is your recommendation about the crew weight going into the Wing-on-wing mode? Like in a jibe or more like keeping the boat flat?
So the crew is illegal per class rules? Thought you had to keep your body within the lifelines no body parts outside of them
that is the way on etchalls shilds ands others classes j24 AND J70 you can have feet over the rail tho only 2 people allowed over the rail also no one can be in the boat only in the pit half out and thats only on a down wind leg and no one may move past the mast on the bow
porcodio
I can't find the article, please post a link and one for the updates email list too if it still exists, thanks.
www.northsails.com/sailing/en/2016/02/wing-on-wing-2
The explanation and advice given between 9:42 and 13:37 is TOTALLY WRONG. Neither end of the line is favoured. The only decision to make is how to cross the band of current. You should choose which tack you need to be on and where on the interface between static water and flowing water you want to be. In the scenario described you would want to be on a port tack at wherever the lay line happens to cross the interface (it doesn't matter that the lay lines will have a shallow corner at that point). Now, in order to get to that point of crossing the interface on port tack, it really does not matter which end of the line you start; neither end is favoured.
It's very hard to say it's totally wrong, however, I'd agree I wouldn't really call this 'starting tactics'. What he's really explaining is that when the boats hit the current, they will experience a left hand shift and boats further left will gain. That is absolutely correct. However, what I feel he's trying to emphasize here is, if you see a gain by getting yourself left of the fleet, starting left on the line sets you up to take advantage of that later in the beat.
The explanation is actually totally right. It seems like you have made some wrong assumptions... It is not a band of current. It is constant current from the middle of the beat and all the way up to the mark.
Addition of Vectors is wrong
Vectors are correct. Right to left current creates apparent wind from left. You then add this apparent wind vector to the true wind to get the shift.
Super video og forklaringer
Epic Jibe
what software is he using at 49:30 ?
Snipe secrets!
This boat was not planing, ever. ridiculous video title.
Actually it was planing for most of the video, it dropped of the plane when gybing, then got on the plane again. But as for the title, yes it was misleading as it was just a well executed gybe, nothing special or overly impressive.
I have been racing thirty years and never had any formal training on this. Thankyou for the info.
Etchells are Great, but have you tried a DRAGON.. That's better !!
Where was the location of this race and what were the wind speeds?
What's the use of disturbing good music with all this useless talking!!!???
Nice rythm. What did the man say?
Dito, NOT a planing jybe!
Amazing twist in the main - I had always used more kicker in heavy air!
The vector calc at ~13:00 is backward. Imagine a 10 kt current (we have them here in WA) --no way to sail against that.
The vector calc is correct. You have a 2 knot current pushing the boats right to left, they therefore feel an apparent wind from the direction they are pushed toward. The addition of this tidal induced wind from the left skews the true wind left. A left hand shift favours the left hand boat. The degree of shift will depend on how windy it is (more tide and less wind = bigger shift, less tide more wind, smaller shift).
I sail in a river where current is huge.. What is calculated here is the effect of wind alone. But the inner boat will sail in adverse current less , hence a shorter course. I don't see how the outter boat would be favored ?
It's more about the lay lines than the time in the current. (remember that the boat, in the example that started pin end had a better lay line and could tack and immediately be out of the adverse current). If it doesn't make sense, maybe try reading this: www.teameclipseracing.org/forms/Performance%20Racing%20Tactics%20upwind%20strategy.pdf
For the situation described at 13:00 Assuming north at the top. Imagine the true wind speed dropped to zero, there would be wind from 270 at 2kts because of the current moving the boat through still air. With the true wind blowing 000 at 20kts, plus the 2kts "current induced" wind, the effect is a shift 6 degrees to the left favoring the boat on the left. I hope this helps.
Woah.... I have no idea what you said but.. woah, Thats hardcore. Lol
bullthrush Thank you that was killing me!
Pppppppppppp
Thanks
Thank
At 13:00 isn't it better to have less distance to do against current so boat end is better start? In fact why not boat end and tack to right lay line so you get into what is then current going partially with you, rather than going pin end to far left and having partially against you at 2 knots? If higher rung towards wind is best, why not higher rung towards current?
He started drawing the vector correctly, so he designed it on the wrong side of the wind. According to him, one will experience a left shift, wrong! With the vector on the right side it will be the right shift. Boat launch best!
@@ILLEMORO1 No, he draws the vectors correct. The tide is taking you from right to left and this creates an apparent wind from the left. A tide coming from the right, will make the wind feel like it's coming more from the left. So, the video is correct. If you're heading in to an increasing side current from the right, you want to position yourself to the left of the fleet.
It is counter-intuitive but he said it right
@Paul Hanly is correct: Assumptions: Angle of beat 45° to true wind relative to water (rtw) Speed of boat on beat half of true wind speed (rtw) Consider when boat in current on Port tack True wind speed (rtw) = sqrt(10^2 + 2^2) = 10.2 angle of wind (rtw) = atan(2/10) = 348.7° velocity of boat (rtw) = 5.1 kts @ 033.7° VMG northwards = 5.1 acos(33.7) = 4.24 kts VMG eastwards = VMG over water - current = 5.1 asin(33.7) - 2 = 0.83 kts velocity of boat relative to mark = sqrt(4.24^2 + 0.83^2) @ atan (0.83/4.24) = 4.3 kts @ 011° You should cross into the current 191° south of the mark, (I'd go for due south to allow for lulls when you may drift westwards). If (as you should) you are going for 191°, starting at the middle of the start line, you should tack onto port at just under 30% of the beat (assuming that the current starts at 50% of the way due north to the windward mark). Slightly earlier if starting at the pin end, slightly later if starting at the committee boat. There is certainly no advantage to either end of the start line.
@@drzeitnot Looks like you made some assumptions that are not correct... You base your conclusion that the boats have to tack to port before they reach the current in order to fetch the mark. Neither boat has reached the port layline when they hit the current. All boats hist the current at the same time, and as you pointed out, all experience a 11 degree left shift. The boat furthermost to the left would of course benefit most from this.
I don't fully agree with the first situation. Cause if there is a substantial shift, or if the wind is very shifty, starting at the pin statistically gives you more options Peter ... contact me if you will
agreed
I'm a little confused about the argument being made at 8:30. It seems to me that the 15 deg. wind shift being discussed on the upper half of the course is equivalent to a new direction for the ladder rungs. How can it matter how smart the right hand boat is? Doesn't the 'fewest number of ladder rungs to cross' path include the pin end?
yes that was impressive
Is that PVC Tube class legal ? Isnt it closed rules ?