UGA Sailing

Пікірлер

@martyburbank3356 2 күн бұрын

There is false physics in this explanation. Theory that the wind on both sides of a foil must meet, equal transit theory, is false. www.grc.nasa.gov/www/k-12/VirtualAero/BottleRocket/airplane/wrong1.html

@johnwcso 8 күн бұрын

Great stuff!

@sailinghickamharbor260 Ай бұрын

Heyyo! Love the vid, just wanted to share that the "equal transit theory" is incorrect, as the molecules don't have awareness of one another to both reach the trailing edge at the same time. There are high and low-pressure vectors on the wing/sail, and Breunoulis' Principle is true, just not the equal air molecule idea.

@martyburbank3356 2 күн бұрын

www.grc.nasa.gov/www/k-12/VirtualAero/BottleRocket/airplane/wrong1.html

@ThomasHonles 2 ай бұрын

It's best to remember that sails work in a compressible fluid (air) and the hull is in an incompressible fluid. I don't agree with her description of Bernoulli's principle applying to the water flow around the hull as the primary force causing windward or leeward rotation. When speed is low, there is too small of an effect in the water- but that is not true of the wind that is flowing over the sails- at hull v=0, air v=max. The change in waterline length and exposure area of the hull vertically against the water are more significant. This would be better explained if the video included a discussion of center of pressure and the shifting location of the effective center of pressure. When the center of crew mass shifts aft (the rear of the boat), the geometry of the hull forces the center of pressure of the water around the boat to shift aft, and vice versa when the center of crew mass shifts forward towards the bow. Under a constant wind flow and sails slack, the wind drag can be assumed to be fairly evenly distributed across the exposure of the sails, masts, and above waterline hull, and the boat can be rotated and pointed either upwind or downwind to a small degree due to the offset, the eccentricity, between the center of air pressure and the effective center of pressure of the hull against the water, that is the resisting force.

@martyburbank3356 2 күн бұрын

Center of effort on sails vs center of resistance on the hull

@farisdurrani 5 ай бұрын

I’m from the Georgia Tech Sailing Club. This video really helps in my learning

@estherleung5276 5 ай бұрын

Great video! Would be great if you can make one on how to predict a lift/ header before it hits

@SlickMaximus 7 ай бұрын

At age 18 I asked the man winning 16 foot jib and main sidewinder class race "How do you decide when to tack"? His answer was your definition of lift and header. I started tacking on header and finished first 30% and second 70% of races out of 12 boats. We also ran Olympic course Wednesday nights.

@echoMagnolia 7 ай бұрын

Best explanation I’ve heard

@geofftt7925 7 ай бұрын

Great explanation.

@dfinchermd 7 ай бұрын

In a race always point up to the lift, correct?

@Ac_Skalman 8 ай бұрын

very helpful, hope i win my next race with this tips!

@arvinddhakar4748 10 ай бұрын

Excellent video

@Telo639 10 ай бұрын

Skippering my first high school race this gave me some more confidence

@teri-rossicyda2874 Жыл бұрын

excellent

@alannewman85 Жыл бұрын

This is cool. I knew all this stuff, I just wanted to see and hear you!!!

@alannewman85 Жыл бұрын

Yes, very well narrated, succinct, no jargon. Nice.

@causa2009 Жыл бұрын

Sounds like a very manly female

@grantalias Жыл бұрын

Great FJ tips. Sailed a Laser for 20 years but have been sailing my dads 1967 FJ the last few years in our club races and feel like I’ve forgotten how to sail 😂. Will put these tips into practice next season 👍.

@perfectscotty Жыл бұрын

Great video. I like her sense of humor.

@MandolinSunrise Жыл бұрын

Great vids, thanks- and they’re over six years old now so hopefully you’ve passed your exams… BTW your map was upside down. 😊

@clivepeaple1331 Жыл бұрын

Valuable. Really helpful and very practical. A technique that builds confidence. Tougher with unirig but also works.

@clivepeaple1331 Жыл бұрын

Excellent teaching video. One to save!

@Tdawg90 Жыл бұрын

for all the Rudderless sailing how to videos... this is the only one that actually EXPLAINS its, not just shows it

@jrawstro Жыл бұрын

I wish you had more videos! These are great! I am new to racing this year and have been learning from my husband...but I would like to hear about this stuff from someone else, said in a different way as it is not coming easy to me!

@ThePduncan742 Жыл бұрын

This girl's a trip. Makes learning fun

@RustyKnorr Жыл бұрын

Regarding your description of weight placement…every boat I’ve ever owned has responded exactly opposite. I sail a “Duck Punt” and it has no rudder. In order to tack you must move your weight forward. I lived on a Flicka that sailed to weather in light air perfectly balanced. I would lean forward slightly to head up, back to fall off. My current Montgomery 15…same thing. In order to come about I shift my weight a bit forward for a smooth tack. I don’t know where your information comes from, but it’s not supported by my real world experience in a variety of different boats. 🤷‍♂️

@DontheDandi1 Жыл бұрын

It's so refreshing to see a young woman make a sailing video. Good diagrams on the white board, new mannerisms, different choice of words, new way to explain what I've heard many times before, and most importantly, the "feminine touch" which puts a big smile on my face. Keep up the good work!

@johniselin2985 Жыл бұрын

I watched this video last week. Next racing day, I noticed the line was at least slightly pin end biased so I decided to start down the line. I ended up port taking the start and the line bias turned out bigger than I expected. I lead the next closest boat by 5 - 10 boat lengths. Thanks Allison. I owe it all to you.

@jimmygivelove6883 Жыл бұрын

The juice part😂

@gnocchi.artyst Жыл бұрын

Thank you for a very informative video. It helped me get into ruderless sailing quick and easily! However, there's an error in the information provided. At around 5 minute mark, you stated that moving your weight aft will cause the boat to head up, and moving your weight forward will cause it to bear off. This is incorrect. It should be the opposite: weight aft = bear off, and weight forward = head up. This is due to the Center of Lateral Resistance (CLR) being moved in relation to the Center of Effort(CE): CLR ahead of CE = weather helm, CLR behind CE = lee helm. (Please note that this effect is subtle on a small dinghy with a planning hull). A more detailed explanation is available in the PDF document "Rudderless Sailing" by Joel Brand.

@junk5155 Жыл бұрын

What about spins?!!

@daniellehamilton1507 Жыл бұрын

Strategies were clearly explained. THANK YOU.

@markbashore7194 Жыл бұрын

Question from a novice. At 1:02-1:03, narrator says the tack of the jibsail is "the frontmost corner" of the sail. Isn't the frontmost corner of the sail the clew? Should she have said the "tack?" Trying to avoid confusion. Thanks for an overall helpful vid.

@gregcongdon9888 Жыл бұрын

New to catamaran racing and sailing overall. Our first and only boat is a Hobie 20 and currently up at nationals in Oklahoma City getting our butts kicked by some very good sailors! Your video helped me to start understanding the wind better. Thank you

@chroniclesofstuntbucket3522 Жыл бұрын

One minor correction at around 1:25 - from the prep flag going up to it coming down is 3 minutes, not 2 minutes. Sharing this with some new racers...

@theplinkerslodge6361 Жыл бұрын

I think this video is good practical training because it shows a bit of the chaos of how flags actually are sequenced from an RC boat. Other vids show these perfect simulations where in real life you are trying to make out the flags blowing in the wind and with a confusing background behind them, making them hard to see. They don't always fly straight out conveniently for you to see them. Your boat is bouncing/spinning around as the RC boat bounces around.

@ketch_up Жыл бұрын

What about black flag?

@theplinkerslodge6361 Жыл бұрын

Well, I think you are talking about Rule 30.1, .2, .3, .4 "IZUB" Flags 30 STARTING PENALTIES 30.1 I Flag Rule If flag I has been displayed, and any part of a boat’s hull is on the course side of the starting line or one of its extensions during the last minute before her starting signal, she shall sail across an extension so that her hull is completely on the pre-start side before she starts. 30.2 Z Flag Rule If flag Z has been displayed, no part of a boat’s hull shall be in the triangle formed by the ends of the starting line and the first mark during the last minute before her starting signal. If a boat breaks this rule and is identified, she shall receive, without a hearing, a 20% Scoring Penalty calculated as stated in rule 44.3(c). She shall be penalized even if the race is restarted or resailed, but not if it is postponed or abandoned before the starting signal. If she is similarly identified during a subsequent attempt to start the same race, she shall receive an additional 20% Scoring Penalty. 30.3 U Flag Rule If flag U has been displayed, no part of a boat’s hull shall be in the triangle formed by the ends of the starting line and the first mark during the last minute before her starting signal. If a boat breaks this rule and is identified, she shall be disqualified without a hearing, but not if the race is restarted or resailed. 30.4 Black Flag Rule If a black flag has been displayed, no part of a boat’s hull shall be in the triangle formed by the ends of the starting line and the first mark during the last minute before her starting signal. If a boat breaks this rule and is identified, she shall be disqualified without a hearing, even if the race is restarted or resailed, but not if it is postponed or abandoned before the starting signal. If a general recall is signalled or the race is abandoned after the starting signal, the race committee shall display her sail number before the next warning signal for that race, and if the race is restarted or resailed she shall not sail in it. If she does so, her disqualification shall not be excluded in calculating her series score.

@БорисКирпа-е6м Жыл бұрын

Nice sail girls

@bboz2463 Жыл бұрын

This is super informative

@stephenyoung4779 2 жыл бұрын

Re 2:55 "one of the big reasons why you would switch from wing-on-wing to both sails on same side is if you were going to sail down in puffs and sail up in lulls." Are you able to provide a bit more info on this. It seems when both sails are on same side, we have flow over both sides of sail (so sails are acting like and airfoil), whereas when sails are on opposite sides there is no flow on leeward side and the wind is simply pushing the sails/boat. The following diagram en.wikipedia.org/wiki/Polar_diagram_%28sailing%29#/media/File:Downwind_polar_diagram_to_determine_velocity_made_good_at_various_wind_speeds.jpg seems to suggest that at low wind speeds I would sail on a reach (both sails on same side) regardless of whether I was in a puff or lull, whereas at strong wind speeds I should sail wing on wing. So it seems not so much whether i'm in a puff/lull but what the wind speed actually is. Thoughts?

@sercancaglarerel3202 2 жыл бұрын

thanks

@davidlarcombe5499 2 жыл бұрын

What are the two big screw holes at the side

@jeremiahwasabullfrog1 2 жыл бұрын

Those lines got unperpendicular real quick.

@jeremiahwasabullfrog1 2 жыл бұрын

Best explanation I’ve seen!!

@Eurocano 2 жыл бұрын

👌👍👍👍👍🏅🏅🏅🏆👏👏👏

@matthewjohns7220 2 жыл бұрын

Hello from Michigan! I bought a Snipe last year and am sailing and skippering in my very first Snipe Regatta next weekend. I sail some open-class races for fun, too! I have watched your videos over and over again, and they are so helpful! They help me the most to teach my wife (crew) how to enjoy sailing and keep it simple. Having fun is more important than learning the vocabulary. Thank you!

@Stroh_Studios 2 жыл бұрын

Really fantastic teaching! Easy to pay attention

@berryking3603 2 жыл бұрын

Me and my dad are getting a 420 and this is a useful guide. Thanks!

@gabrielb2598 2 жыл бұрын

Attaching the jib is so much harder than it looks, the hardest part is literally the pin and key chain ring.

@Backpackhack_ 5 ай бұрын

one hundrend percent

@7189k 2 жыл бұрын

great video. Thanks for sharing

Ең жақсы KZbin

Пікірлер