Пікірлер

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  @user-cq4mv1zp2x4 ай бұрын

  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

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  @sailgears10 ай бұрын

  you wrong about the current

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  @JB-rt4mx Жыл бұрын

  Is there a galley & head onboard ?

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  @NapoleonDynamiteBelg Жыл бұрын

  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.

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  @ChorKeungChan Жыл бұрын

  我哋要好好睇住個圖學習大家一定要成功

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  @nilosantos4862 Жыл бұрын

  How much cost this sail boat in Us dolar

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  @slushxr357 Жыл бұрын

  30-70k

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  @markprice46 Жыл бұрын

  They are not anticipating those puffs at all

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  @simonharby55372 жыл бұрын

  Really helpful and very well presented…thanks…

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  @BR-hi6yt2 жыл бұрын

  There is a much simpler rule - but I am not going to tell it to you because you might beat me in a race.

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  @geebee3d3 жыл бұрын

  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.

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  @Rob-fx2dw3 жыл бұрын

  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.

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  @AlohaRaceTeam3 жыл бұрын

  This guy is drunk as hell

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  @markm4173 жыл бұрын

  Any real sailor is still drunk at the 10am start of a saturday seminar and Peter Isler is a very real sailor

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  @petermcfarlane5293 жыл бұрын

  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.

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  @petermcfarlane5293 жыл бұрын

  @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.

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  @drzeitnot3 жыл бұрын

  In summary the pin end boat is further 'upwind', but they have both massively overstood the mark.

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  @haraldholmensorensen2 жыл бұрын

  @@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.

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  @JeffCrowell113 жыл бұрын

  Excellent narration here. Thank you for posting.

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  @JMcLeodKC7113 жыл бұрын

  I take it that trying to go wing on wing by jibing the kite is not a good idea

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  @JMcLeodKC7113 жыл бұрын

  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?

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  @tomharrell19544 жыл бұрын

  Hi do you still monitor this site? Would this be legal for Etchells One design racing????

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  @ispasskov4 жыл бұрын

  Amazing, thanks!

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  @katherinemontgomery67443 жыл бұрын

  Thanks

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  @katherinemontgomery67443 жыл бұрын

  Thank

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  @katherinemontgomery67443 жыл бұрын

  Thank

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  @katherinemontgomery67443 жыл бұрын

  I know

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  @Rob-fx2dw4 жыл бұрын

  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.

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  @Joda52125 жыл бұрын

  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... 😉

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  @richardcunningham55405 жыл бұрын

  Could you do this in a Melges 20 in sub 10 kn?

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  @BarringtonOASmith5 жыл бұрын

  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.

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  @trainspot744 жыл бұрын

  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).

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  @haraldholmensorensen2 жыл бұрын

  @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.

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  @josemariatrueba45685 жыл бұрын

  I could not understand more than a word now and then. Sorry.

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  @SeanFChannel5 жыл бұрын

  #rotfl

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  @Julian92ize6 жыл бұрын

  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?

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  @commandernagy6 жыл бұрын

  So the crew is illegal per class rules? Thought you had to keep your body within the lifelines no body parts outside of them

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  @jonathanshore57686 жыл бұрын

  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

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  @ludovicoparisi59656 жыл бұрын

  porcodio

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  @schessor7 жыл бұрын

  I can't find the article, please post a link and one for the updates email list too if it still exists, thanks.

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  @jannld4 жыл бұрын

  www.northsails.com/sailing/en/2016/02/wing-on-wing-2

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  @hikikimorimasqueerade87437 жыл бұрын

  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.

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  @MozzySails6 жыл бұрын

  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.

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  @haraldholmensorensen2 жыл бұрын

  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.

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  @finnehmsen54237 жыл бұрын

  Addition of Vectors is wrong

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  @MozzySails6 жыл бұрын

  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.

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  @finnehmsen54237 жыл бұрын

  Super video og forklaringer

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  @ZoneTelevision7 жыл бұрын

  Epic Jibe

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  @gemeinerhund8 жыл бұрын

  what software is he using at 49:30 ?

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  @windseeker2428 жыл бұрын

  Snipe secrets!

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  @SeanFChannel8 жыл бұрын

  This boat was not planing, ever. ridiculous video title.

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  @zooknut3 ай бұрын

  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.

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  @SuperMagoo20118 жыл бұрын

  I have been racing thirty years and never had any formal training on this. Thankyou for the info.

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  @remcovandenberg56429 жыл бұрын

  Etchells are Great, but have you tried a DRAGON.. That's better !!

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  @WelshRabbit9 жыл бұрын

  Where was the location of this race and what were the wind speeds?

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  @bambibau9 жыл бұрын

  What's the use of disturbing good music with all this useless talking!!!???

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  @flemmingdjernaes9 жыл бұрын

  Nice rythm. What did the man say?

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  @patrickkohlman20599 жыл бұрын

  Dito, NOT a planing jybe!

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  @nicola1howe9 жыл бұрын

  Amazing twist in the main - I had always used more kicker in heavy air!

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  @morganahouse210910 жыл бұрын

  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.

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  @MozzySails6 жыл бұрын

  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).

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  @evanwellens10 жыл бұрын

  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 ?

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  @camllamas29 жыл бұрын

  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

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  @bullthrush10 жыл бұрын

  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.

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  @FuzzyFrenchfy3310 жыл бұрын

  Woah.... I have no idea what you said but.. woah, Thats hardcore. Lol

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  @anthonyz.26076 жыл бұрын

  bullthrush Thank you that was killing me!

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  @katherinemontgomery67443 жыл бұрын

  Pppppppppppp

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  @katherinemontgomery67443 жыл бұрын

  Thanks

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  @katherinemontgomery67443 жыл бұрын

  Thank

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  @paulhanly194210 жыл бұрын

  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?

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  @ILLEMORO16 жыл бұрын

  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!

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  @MozzySails5 жыл бұрын

  @@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.

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  @igbc1765 жыл бұрын

  It is counter-intuitive but he said it right

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  @drzeitnot3 жыл бұрын

  @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.

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  @haraldholmensorensen2 жыл бұрын

  @@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.

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  @leovandorp10 жыл бұрын

  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

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  @thomaswalker91828 жыл бұрын

  agreed

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  @ChristianNally10 жыл бұрын

  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?

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  @chrisgrow11 жыл бұрын

  yes that was impressive

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  @Schladdermann11 жыл бұрын

  Is that PVC Tube class legal ? Isnt it closed rules ?