Пікірлер

• 
  @steveoh45955 күн бұрын

  What about the the centerboard swap?

• 
  @fredbarnes1962 ай бұрын

  Example five must be wrong. The narrator says that after Green gybes they are on opposite tacks, but green gybes to port. The narrator goes on the say that Green completed her gybe before meeting red Had Green not gybed she would have had the right of way. It’s pretty clear they were trying to say once they were on opposite tacks Green had right of way. Just got it backwards is all.

• 
  @DSilverwood3 ай бұрын

  Thank you for this video on VMG.

• 
  @NeoZhang.hacker.3 ай бұрын

  It helped me understand this rule too.

• 
  @fredbloggo4 ай бұрын

  Really good and bought together a few different concepts for me

• 
  @MikeFerring3634 ай бұрын

  Excellent interview. Very good questions and the graphic support is helpful.

• 
  @Prestodigital4 ай бұрын

  Gonna jump in here after the airplane wing analogy. Changing the attitude of the wing to airflow does change the AoA, but it does not control the climb or dive behaviour. That is controlled with the throttle. The old model Bernoulli model of pressure difference has also been - not entirely- discredited but still in vogue because it is easier to understand than Circulation Theory. Which is how lift actually works on an airfoil, but nobody wants to do the math, or at least very few are capable of the calculus. You don't really need to work the numbers, the telltales are doing that.

• 
  @MRL32344 ай бұрын

  Sorry. Call them by colors or make the letters larger. Hoping this is helpful to you for next time. Can’t see letters

• 
  @SailZing4 ай бұрын

  Download our SailZing.com routing guide for Melges 15 running rigging here: sailzing.com/wp-content/uploads/2022/09/Melges-15-Line-Routing-SailZing.pdf

• 
  @nicksundstrom73415 ай бұрын

  What happens if three boats are overlapped and the leeward boat pushes the middle boat up into the windward boat? So green pushes blue into yellow. How can blue make room if it’s trapped?

• 
  @AndrisPrikna6 ай бұрын

  Are you sure that so much grease in the hub will not make a issues later. To me at some point it will heat up and will get watery and start leaking, grease is good, but when to much then goes opposite way! How the trailer been doing?

• 
  @melvi88346 ай бұрын

  An important question, i need a physics answer. In the case that vgm is parallel to the the wind Is it possible that the value of VGM is bigger than the value of the wind?

• 
  @tobla40292 ай бұрын

  no.

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  @melvi88342 ай бұрын

  Many thanks for the answer, after much research you are the first to confirm that it is not possible to have a VGM greater than the wind. Sorry for the redundancy of the question, I ask you for a reinforcement, your answer is also valid in case of downwind right? Do you know if there are textbooks where you can study the physics of this topic?

• 
  @alannewman857 ай бұрын

  Lifted tack - What does that mean?

• 
  @IanHall-zx5bk7 ай бұрын

  Great Vids! Example 8 illustrates no overlap. Does that mean blue has acquired mark room rights simply by being in the zone when approaching the finish line down wind?

• 
  @fredbarnes1963 ай бұрын

  If the inside boat is clear ahead or has an overlap at the zone it has room (downwind removes the port starboard exception )

• 
  @meseahunt8 ай бұрын

  while u did a good job your cameraman should be fired immediately!!! 🤠

• 
  @MandolinSunrise8 ай бұрын

  Great vids, thanks. So there’s going fast in the water and going fast towards the mark.

• 
  @mdteason8 ай бұрын

  Thank you very much for the excellent guidance, which we think will help us race and cruise better! One very minor but fun point on weather- in the sixth minute, this video incorrectly suggests that global Coriolis effects consistently veer or back masttop wind direction. That effect is insignificantly small at the scale of a boat and its mast, or a bathtub drain, contrary to popular belief. Local obstacles, or squalls swirling either direction, cause any actual shifts in true wind layers. Of course, you correctly stated the typical apparent wind shift factors.

• 
  @SailZing8 ай бұрын

  I believe you to be absolutely correct that the global forces are overstated. I’ll put a note. Thanks! Glad that the videos are helpful.

• 
  @Lozzie749 ай бұрын

  Best explanation of sail shape I’ve ever seen!

• 
  @SailZing9 ай бұрын

  Thanks! We appreciate that.

• 
  @davidjaninis48910 ай бұрын

  Great stuff! Thank you !

• 
  @SailZing9 ай бұрын

  Thanks!

• 
  @Ninima11 ай бұрын

  Is it save to sail in between the backwind and blanket zone? is there clear air?

• 
  @jleeadams1011 ай бұрын

  Is it tactically legal if yellow is on starboard, close hauled and below the layline and enters the zone after, or at the same time as blue, who is on a port tack and fetching the mark, (yellow has to tack to port to make the mark on a port rounding after forcing blue off course) and forces blue to tack to starboard to avoid collision sending blue upwind of the mark's layline?

• 
  @user-iu3eb1cq4r Жыл бұрын

  How does Scenario 2 'Fast Luff' relate to Keep Clear b) 'if the right of way boat can also change course in both directions without immediately making contact' - was the change of direction in the Scenario too extreme?

• 
  @Lovely_Roses Жыл бұрын

  Thank you so much for doing this video theres no other video like this :)

• 
  @SailZing Жыл бұрын

  Glad it was helpful!

• 
  @Jonas-nk8if Жыл бұрын

  What program did you use to draw these situations? Thanks!

• 
  @SailZing Жыл бұрын

  Jonas, We use a licensed copy of “Tactical Sailing Situations”. tss.peronneau.net/ Thanks for the question.

• 
  @tylerrobertsondev Жыл бұрын

  What lake is this?

• 
  @SailZing Жыл бұрын

  This was filmed on Lake Beulah in East Troy, WI. It’s a beautiful lake in southeastern Wisconsin about 1-1.5 hours from Chicago (depending on traffic).

• 
  @gashtrahe-tikakairakau-gas5297 Жыл бұрын

  Thank you. Fair winds 😎

• 
  @simonforbes2453 Жыл бұрын

  I still don't get it.

• 
  @SailZing Жыл бұрын

  We’ll keep trying!

• 
  @HarryWhiteUK Жыл бұрын

  Brilliant video! - Found this from your website

• 
  @SailZing Жыл бұрын

  Awesome, thank you!

• 
  @fredbarnes196 Жыл бұрын

  Question #3 seems not quite right. As you increase wind speed over the sail surface you increase lift, requiring less camber to produce the same amount of lift but with less drag. Flaps up! Sheeting the vang would seem to create even more lift but with additional drag. Flaps down!

• 
  @mikeayres345 Жыл бұрын

  I need advice on the inevitable separation bubble just behind the mast, please explain.

• 
  @user-rh6se4ev8t Жыл бұрын

  Very useful thanks

• 
  @alecdanielbollorino9656 Жыл бұрын

  The Toggle for gnat vang is backwards. The flat part goes on the bottom and the 45 angle on top.

• 
  @SailZing4 ай бұрын

  The GNAV is installed correctly as shown in the video. The manufacturer's own video shows it the same way. kzread.info/dash/bejne/dJijyayjiKvJnZM.htmlfeature=shared&t=451

• 
  @alecdanielbollorino9656 Жыл бұрын

  You installed the spreaders wrong green is starboard and red is port.

• 
  @SailZing Жыл бұрын

  You’re absolutely correct. We swapped the sides by accident. Spreader with red detail should be on the port side. Nice attention to detail!

• 
  @celticspike78 ай бұрын

  ​@SailZing what tuning guide are you referring to? melges or from sail maker? thx

• 
  @SailZing4 ай бұрын

  @@celticspike7 The Melges 15 tuning resources from Melges Performance Sailboats - www.melges15.com/guides-and-tutorials.

• 
  @lazybonzes24 Жыл бұрын

  Some of the worse camera work ever

• 
  @allaheadflank Жыл бұрын

  Great advice - thanks!

• 
  @stevenshaw9940 Жыл бұрын

  Heather Abby Brown!!!! PDYC!!

• 
  @michaelbutterfield7759 Жыл бұрын

  Seems great must get to know more.

• 
  @grahampearce6462 Жыл бұрын

  Excellent explanation, so understandable. Now my problem will be to remember it in the heat of the moment on the water

• 
  @SailZing Жыл бұрын

  Thanks for the feedback. We feel your pain. 😉 We have companion articles on SailZing.com that usually document the top points from our videos. You can revisit those for quick glances to remind yourself.

• 
  @bigglyguy8429 Жыл бұрын

  Bit confused... at 3:30 you say the angle of attack will be 'smaller' (?) at the top of the sail. Is that because it IS twisted, or because it IS'N'T, and so needs twisting? Or would twisting make it worse? And I'm afraid no, I cannot see the twist very well with the diagram, as I'm not sure what I'm looking at... then you say a twisted sail will have LESS camber? So it's more twisted when it's flatter? I'm just totally confused now

• 
  @SailZing Жыл бұрын

  Yes, it's flatter when more twisted. But, a sail can be flat without being twisted - think of a heavy air sail. With a fuller sail, it's a little hard to picture. Think of it this way: As the upper sail leech twists off, the sail becomes flatter over the entire chord length. Just picture taking a curved sail and pulling the leech to leeward. A flatter sail is gong to have a small angle of attack at the luff of the sail. It's hard to see from my drawing. This depowers the top of the sail.

• 
  @bigglyguy8429 Жыл бұрын

  @@SailZing Thanks for the reply. I think I need to go back to basics...

• 
  @martyhownice2441 Жыл бұрын

  ”Leech telltales streaming intermittently”. Does that mean they are just about to stall or just about to luff? I mean do we seek maximum lift or maximum lift/drag ratio here?

• 
  @SailZing Жыл бұрын

  Thanks for the question and sorry for the slow response. We're talking about the leech ribbons here. I don't think of this as stalling or luffing. They're responding to the vortices that get generated when the air moving over the windward side of the sail meets the air from the leeward side at the leech. in light to medium air, the ribbons will disappear behind the sail and then stream intermittently. If you're not pointing well in light to medium air and your leech ribbons are always flowing, try trimming the mainsheet a few clicks. In heavier air the ribbons might always stream.

• 
  @Yarnluv Жыл бұрын

  Great interview!

• 
  @SailingTeamTallyHo Жыл бұрын

  My experience with this rule is that it doesn't really hold up well in the protest room unless the boats are of the same class (exactly the same). This is particularly true with mismatched symmetric/asymmetric class boats where fair and proper course has an even wider definition. I've seen it enforced well in team and match racing however when there are umpires around though. :). Very good scenarios to go through!

• 
  @SailZing Жыл бұрын

  Thanks for all your comments on these rules videos! When we get time, we'll take a look at the videos you mention and consider adding links to them as additional examples.

• 
  @SailingTeamTallyHo Жыл бұрын

  Here's a good real life GoPro example of the Rule 19 Example 1 given at the starting line. The boat taking the video did NOT have rights to have room but allowed the lee boat to pass ahead first. Good thing the starting line wasn't too crowded! kzread.info/dash/bejne/fYB2t5SQdczdf84.html

• 
  @SailingTeamTallyHo Жыл бұрын

  Here's a good real life GoPro of a rule 19/20 scenario. In this case the boat that was hailed did not respond. What should happen then other than observing rule 14. (avoid collision): kzread.info/dash/bejne/g4yrk8t6e8m1Zc4.html

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  @SailingTeamTallyHo Жыл бұрын

  Excellent breakdown. I had forgotten the 18.4 does not apply in a gate scenario. Here's a good real life GoPro that shows a 18.3 situation. kzread.info/dash/bejne/qnh4rtytmc3RnKw.html

• 
  @jackrosenberg7544 Жыл бұрын

  Great interview! Just getting into sailing and I’m so glad I have this introduction to the new Melges 15 boat. I have heard of Eddie Cox before. Such a legend in the sailing world so glad he is the one to explain this boat!

• 
  @SailingTeamTallyHo Жыл бұрын

  Some actual on the water scenarios of this captured with gopro in slo mo and vr with the KZread channel: Team Tally Ho!

• 
  @evilpinkfloyd Жыл бұрын

  What about gybing in the zone?

• 
  @SailZing Жыл бұрын

  Gybing is considered the same as tacking..

• 
  @evilpinkfloyd Жыл бұрын

  Blue comes to leeward mark on starboard well ahead of yellow (no overlap). Blue had to take mark wide to give to room to inside over lapped boats. Blue gybes to port and then continues turning up wind. Yellow still on starboard gybe (coming in fast) tries to cut inside of blue. Blue says you have no mark room. Yellow says starboard implying they are the right-of-way boat and then continues to round inside of blue, and eventually gybes. Blue keeps clear but is blocked from coming up to propper coarse (still near mark in 3-boat circle). Should blue protest yellow for not giving mark room? Does port/starboard apply or does mark room apply?

• 
  @michaelryd6737 Жыл бұрын

  If you think this is easy, as you say at 8:40 I have a Q for you! Why are you not making millions of dollar in Americas Cup as a consultant instead of making BS videos? It´s not an easy thing! That´s why the best hydrodynamics designers and engineers in the world is involved in sailing performance in AC.

• 
  @michaelryd6737 Жыл бұрын

  Let me insult Your intellect! You don´t understand how it works, that´s obvious but you are right in one regard, at 4:56 you say you don´t have to understand and that´s correct, just trim your boat and you will sail faster!