The Displacement Hull Explained
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@gregoryschmidt3332
@gregoryschmidt3332 12 күн бұрын
Awesome
@TechSpec04
@TechSpec04 13 күн бұрын
i remember getting my boating license in high school. we had a class called "wildlife" and we had to learn about boating and afterward we took a test and if you got an 85 or above DNR would send you a boating license. i got my hunter education card the same way.
@mofosamo
@mofosamo 13 күн бұрын
Singlehanding on a ketch is a lot more work.
@tamarugo5709
@tamarugo5709 13 күн бұрын
We are newbie here in sailboats, but we are looking a bilge keel type like Reinke 11MS, if this type of keel also enough good to go on the atlantic sea to south america? we need to move the sailboat to patagon in south america to travel around fjords.. I like these type because is very easy to put in earth and this model also have a third small keel centered back protecting the rudder and the propeller ..thanks for comments
@ALEX-D.
@ALEX-D. 15 күн бұрын
Спасибо.
@svsalserenity4375
@svsalserenity4375 16 күн бұрын
Not sure if anyone mentioned this but here it goes. The center board pennant or a sheave can break if you have not got the board all the way down . Basically the board is hanging on the pennant, if you hit bottom the board comes up and goes back down on the pennant , this usually results in some damage . So never sail with the board half down if there is at all a chance of contacting the bottom.
@jasonmcintosh2632
@jasonmcintosh2632 17 күн бұрын
For me, "sailing performance" comes down to how well your boat can sail into the wind. To sail upwind, the forward part of the sail's roach provides the forward force that allows the sail to go upwind. With a traditional gaff sail, the roach area is reduced, and so the ability of the boat to sail upwind is reduced. However, I think it is possible to have a "small gaff" at the top of the sail that does effectively increase the roach, before a large gaff will reduce it. Kind of like "optimizing the gaff size". The optimal size isn't big, and it isn't zero. This is tricky to understand. First, you must understand that the force on the sail is always perpendicular to the sail's surface. Air is a gas and the force it exerts on the sail is (mostly) due to it's pressure. (At least the force that's useful for sailing.) Pressure always acts perpendicular to the solid surface it's acting against. In this case, the solid surface is the sail. When you're sailing upwind and your sail "puffs out", the forward mpst part of the sail faces forwards the most. As you go back (or aft) on the sail, the sail starts facing more and more to the side. When sailing upwind, it's ONLY THE PART OF THE SAIL THAT'S FACING FORWARD (or as a part of the sail that's facing forward) that provides forward force. A sail with a roach permits more of the sail to face forward, and thus develop more forward force. (Sails aren't made to be flat, but actually have some extra fabric to make it "puff out", to permit a larger roach.) Now a boat is typically designed to sail well with full sails up to about 15 knots of wind. After that, you start to reef. If you have a sloop and you put a gaff sail on it, you'll greatly increase the size of your sail You can end up with close to twice the sail area, which would be way to much sail for 15 knots of wind. If you did that, you'd have to ALWAYS reef your sail, which would be stupid. So gaff rigged boats have shorter sails so the total sail area is appropriate for sailing on a reach in 15 knots of wind. When you reduce the height of the sail, you reduce reduce the forward facing part of the roach and therefore you will reduce your ability to sail upwind. What's the optimal size of a gaff spar? Well, I don't know, but as I stated initially, it's not zero, and it's not huge, but it seems to be a rather "smallish" gaff. I hope this makes a little sense. We learn a little everyday...
@DanielGhiasvand-s3p
@DanielGhiasvand-s3p 18 күн бұрын
Thanks alot man
@JennySusanti-u1q
@JennySusanti-u1q 18 күн бұрын
Here is the ultimate in trimeran hull design with cantered hydrofoils on the ahmas and 2 red dagger board hydofoils under the main hull. Spindrift can move at 75 km/h kzbin.info/www/bejne/mGTddoR4j7Jkbdksi=Xwj5ghsadPkRu480 Regards Philip
@JennySusanti-u1q
@JennySusanti-u1q 18 күн бұрын
Nick of DMS Marine brought my attention to Icebeakers - another class of hull type. kzbin.info/www/bejne/o4TSlnmph8-jr7csi=DsePKO36BOxqdDDX
@coreyriddell4726
@coreyriddell4726 19 күн бұрын
Haven't seen the video yet. I sail a Bermuda rig, fast, easy and reliable. But my love will forever be the junk rig.
@jasonmcintosh2632
@jasonmcintosh2632 23 күн бұрын
I own a ketch rigged Nauticat monohull. I love my boat, but I believe that a sloop is easily superior to a ketch. While there are pros and cons, it comes down to this: The sloop rig sails better and costs less. Period. Full stop. If you think it's expensive to completely re-rig a sloop sailboat, think of that number and double it for a ketch. That's what it'll cost to re-rig a ketch. While some of the materials may be a little less expensive with a ketch because you have less loads on any given shroud, you've got double the number of shrouds and twice the labor cost. Also, you've got the cost of the second mast. If you buy a used ketch, this cost is somewhat hidden, but it's there. So a ketch's rigging costs twice that of a sloop. If you've got a large sailing budget, then this isn't an issue, but if you've got a finite budget, I would much rather spend the extra cost of a ketch rig on improved equipment for a sloop. An in boom furler would be great. Electric winches all around, etc. There's a lot of ways you can spend the same amount of money on a sloop than a ketch, and end up with much nicer equipment. Performance. When I think of sailing performance, I pretty much think of how well your boat can point into the wind. Anything can sail down wind, but it's the upwind performance that you'll always wish was better when you sail. Upwind performance is limited by one main factor: windage. Windage is anything on your boat that causes the wind to push it downwind, which is pretty much everything above the waterline that isn't a sail. The mizzen mast is all windage. Yes, you'll get a little bit of forward force from the smaller mizzen sail (called a jigger), but it doesn't compensate enough for the added windage of the mizzenmast. The area of a sail grows roughly as the square of the height of the mast. You'll get a lot more sail area by increasing the height of a sloop mast than adding a mizzen mast. The mizzen mast is a complete liability when it comes to sailing upwind. My Nauticat is a "motor sailer". It has very a high freeboard, a pilot house, and a very high aft cockpit area. It even has a full keel to boot. All of this makes it terrible at sailing upwind. But hey, it's a damn "motor sailer". You motor with it as much as you sail with it. If your upwind performance sucks already, you might as well add a mizzen mast and make it a ketch so you can enjoy some of the benefits of a ketch rig. So a ketch makes sense with a motor sailer, but much less sense with a "pure sailing" sailboat. There are some advantages of a ketch rig. The main one always stated is that you've got two smaller main sails that are easier to manage than one large sail. (Well, they better be easier to handle because you probably can't afford that awesome boom furler if you re-rig a ketch...) But this is also a con because what's the biggest hassle with sailing? Managing the damn sails, and now you've got an extra sail to manage... Probably the biggest advantage of the mizzen sail is the greater flexibility in "sail plan". Basically, you've got more options in how to configure your boat. My boat is a cutter, meaning that I've got two foresails: a large genoa and a smaller inner jib. So I've got a total of 4 sails I can put up, and it's a pretty sight when they're all up. Sail flexibility is important because you can have wind coming from all different directions at all kinds of speeds and in all kinds of sea states. Ideally, you want to have the boat "balanced" when you sail. Balance is important to understand. Sails not only produce a force that pushes the boat forward, but they also produce a sideways force. Ideally, the keel is cancels this sideways force, but if the sail is in front of or behind the keel (fore or aft of the keel), then that sideways force will produce a torque on the boat that will turn the boat into the wind (weather helm), or turn it downwind (lee helm). This torque has to be corrected by the rudder. For instance, if you're sailing upwind and the main is putting a torque on the boat to make the boat round up into the wind (weather helm), then the rudder must be used to force the boat to turn away from the wind. BUT(!), a rudder that's constantly trying to turn the boat adds a LOT of drag and slows the boat down tremendously. It is far better to adjust your sails to bring the net torque around the rudder to zero so very little rudder is needed to get the boat to sail in the desired correction. When you bring the net torque to zero, your boat is "well balanced". Basically, the more sails you've got, the more ability you'll have to achieve this balance. But you really don't need a ketch to balance the boat. You've got plenty of flexibility with a furable jib and main to achieve this balance... All that said, one sail configuration that's quite nice to sail with a ketch boat is to use a small jib and the mizzen main, not using a big genoa or raising the main sail. This is called sailing with the "jib and jigger". It's a very reduced sail area configuration, so you'll move along rather slowly, but comfortably. It's a great configuration to put up in the evening as if a storm blows up during the night, you won't have much sail out and the boat won't overreact to wind gusts. So, is a ketch superior to a sloop? If you've got plenty of money, you're not in a hurry and you love to pittle around with lots of sail configurations, then a ketch is for you. If you want to go as fast as you can, point well and spend as little money as possible, then you want a sloop. Almost everyone is in the latter category, so I firmly believe that a sloop is superior to a ketch. One last pro/con of ketches... The mizzen mast and shrouds almost always ends up being in the cockpit and are a pain in the ass to get around. I've knocked my head on the mizzen boom countless times. This really sucks. However, they do give you something to grab onto for safety, so there is a small advantage, but you'd be better off with good handholds designed into a nice open and uncluttered cockpit than having a mizzen mast in the middle of it.
@JennySusanti-u1q
@JennySusanti-u1q 25 күн бұрын
I am trying to find out if a trimaran can be configured as a ketch. On the spindrift2 kzbin.info/www/bejne/mGTddoR4j7Jkbdksi=eHy2rhXn8R13Vwmd you can see on the amahs there are cantered hydrofoils while on the main hull on the under side there are 2 red hydrofoils. Btw when you say dagger board do you mean these red hydrofoils? Thank you for your great videos. Regards Philip in Jakarta
@circonflexechess
@circonflexechess 29 күн бұрын
Pretending to know when you actually know very little... No understanding at all of difference between weight stability vs buoyancy stability, and static stability vs dynamic stability. This isn't advanced architectural notions, but very fundamental aspects.
@daveware4117
@daveware4117 Ай бұрын
So, build a 300 foot long sail boat and cross the Atlantic in 3 days?
@larsolivius
@larsolivius Ай бұрын
Center boards for "smaller boats" is not entirely true. For example, Garcia Yachting's Exploration 45, 50 and 60 all have centreboards and are by no means small.
@nycupperes
@nycupperes Ай бұрын
Have you done a video on Catamarans?
@nycupperes
@nycupperes Ай бұрын
I used to ride my bike (fietsen) from Amsterdam to Haarlem when I lived there. Beautiful town.
@nycupperes
@nycupperes Ай бұрын
Seems that Ketch are more roomy and better for taller people.
@kellan.mitchell
@kellan.mitchell Ай бұрын
can i do it as a 13 year old?
@mortenua8979
@mortenua8979 Ай бұрын
Thank you! Very informative and necessary for me this days
@marshall4759
@marshall4759 Ай бұрын
I really liked content, but I can't tolerate the background music.
@JennySusanti-u1q
@JennySusanti-u1q Ай бұрын
Great video on the advantages of a ketch (followtheboat sailing kzbin.info/www/bejne/l6W8i4eknrR8ZpYsi=UyqoQpd60R6lLpA4 and improved sailing kzbin.info/www/bejne/rKqqdIawpNd6gM0si=LWqYelsmpG6w7bzs) At the moment I am planning my own ketch as a stainless steel.trimeran. Nick from DMS marine did a great video on trimerans (kzbin.info/www/bejne/jZm5kn5tbpxqaM0si=jy7trSqJyzjsEu9Z) plus many other topics. Can you please look at my proposed sail plan and comment. The aim is to have my sails permentally up ether furlled or unfurlled so as to mimimise or eliminate the need to lugg specialty sails in out of below deck storage. Brian and Karen on Dallios have a great approach with everything controlled from the cockpit helm using electric winchs while keeping the helms person safe. Please check and improve on my sail plan. From the bow to the stern: 1. Genoa 2. Foreward Jib. 3. Rear Jib. 4. Fore mast main sail. 5. Staysail between the Fore mast and the Aft or Misen mast. 6. Aft or Misen mast sail. 7. Spanker Inner Jib sail. 8. Optional Spanker Outer or Aft Jib sail. Is it possible to have all sails unfurl upward to the top of the haliyard? The mailsail in the Harkin demonstration video furls into the mast (kzbin.info/www/bejne/jZm5kn5tbpxqaM0si=jy7trSqJyzjsEu9Z) Can this be made to furl upward from the boom along the mast? At the moment most vessels have jibs that go from the top of the haliyard to a clew on the deck. Could the jib be stored furled up between the mast and the clew withe jib unfurling upward along the main mast? Could the staysail be stored furled up between the top of fore mast and 90% of the way down the aft or mizen mast and also unfurl upward along the mizen mast? Thanks for your replies. Regards Philip
@malthus101
@malthus101 Ай бұрын
Your voice reminds me of Nils Lofgren!
@raylast3873
@raylast3873 Ай бұрын
Actually there already is an extremely popular, modern boat in widespread use that uses a gaff rig: the Dutch „Valk“. Not just a modern design, but arguably one of the classics of modern dinghies still in serial production, and a staple of sailing schools and boat rentals. The Valk is everywhere in the Netherlands and is probably what most Dutch people learn to sail on. They do seem to have the exact advantages you mention: easy to handle (as a schooling boat, that is a must), and they also have comparatively tiny masts, basically only the length of the hull.
@AW-gu5gj
@AW-gu5gj Ай бұрын
Very helpful. Thank you.
@nearlynativenursery8638
@nearlynativenursery8638 Ай бұрын
These boating licenses is for the masses that are arrogant, selfish and or mostly just ignorant of safety and respect. If anyone is serious about boat life be it fresh or salt water, motor or sailboat? Do what I have done. School yourself. In 2 years I read 44 non fiction books, watch thousands of youtube video of all aspects instructional orientated videos of what to do and not do and hundreds of podcast all on sailing the ocean voyaging. I consider myself as equally or better prepared and knowledgeable than any who has taken all the courses. I finally took asa 101, 103 & 04. I found it not a good value at 2,500 dollars for a 3 day land based sailing courses to go over things I have already had learned. I did get one ocean time sailing which there was little wind so a lot of motoring and was disappointing but nice to be out on the ocean. But having over 100 scuba dives trips and 20 fishing trips experience in the Ocean the sailing course was not as valuable to me as I thought it might be. If one had no ocean experiences and not read books then yes the course would have been a good value for a newbie.
@defenestratefalsehoods
@defenestratefalsehoods Ай бұрын
I have a 25 ft sailboat. I use about 7 gallons of gas a year if i go out once a week from March- October for racing and 1 or 2 Saturdays a month between may and September for fun and relaxing. I met a guy with a seadoo boat who put 70 gallons of gas in every 2-3 weeks to go fishing.
@adamfrbs9259
@adamfrbs9259 2 ай бұрын
If you were say....oh....borderline Forest Gump....would a keel on a tiny flatbottom boat keep it from tipping over? I mean, would that work?
@ratandmonkey2982
@ratandmonkey2982 3 ай бұрын
man, those "cons" were pretty scary
@isaacshultz8128
@isaacshultz8128 3 ай бұрын
I own a bermuda sloop rc boat lol i never knew what ti call it thought haha
@bill4572
@bill4572 3 ай бұрын
Watching last voyage of the demeter keels just came to mind it's a older wooden sailboat in the movie
@magedgendi1
@magedgendi1 3 ай бұрын
👍🏾
@mateoarenasch
@mateoarenasch 3 ай бұрын
pirat class mentioned!!
@jono3697
@jono3697 3 ай бұрын
great video sir ... new subber
@olesyakoroteeva1848
@olesyakoroteeva1848 3 ай бұрын
Very helpful thank you❤
@assaraan9407
@assaraan9407 3 ай бұрын
if a brig's main mast is only partialy square riged dose that not make it a brigantine?
@clanyoung14
@clanyoung14 4 ай бұрын
How about fires in your attic or leaky roofs! No way.
@floydadams7069
@floydadams7069 4 ай бұрын
So what you’re saying this is just a tax
@tanyalove6983
@tanyalove6983 4 ай бұрын
Wow a much rust I was looking at one and they said that they have a survey done. She I was going to buy it. But now I don't know. I was going to use am ultrasonic mwter on it but I found put that you have ti habe all the rust blasted off for that to work right.
@tanyalove6983
@tanyalove6983 4 ай бұрын
OMG I am looking at a steel yacht and they say they have a survey done. I watched the Brent Swain 68 ft giant Chinese Junk out together and the sides came straight up to the top. Not sure how yours🥰 rustes out. Did you have a survey done. I was going to get an ultrasonic thickness tester but I think you have to take the rust off first. I was going to check every inch of the hull. Wow never seen so much rust in my life. I am scared now.
@eduardodaquiljr9637
@eduardodaquiljr9637 4 ай бұрын
Where is planing hull?
@snowsurfr
@snowsurfr 4 ай бұрын
Fantastic video! Thank you for sharing such a fascinating story! Rowing 1400 miles in those conditions is incredible!
@rainerneumeister5239
@rainerneumeister5239 4 ай бұрын
So. A flat bottom , dingy is effectively a planing hull. Is that correct. ?
@BabyJesus215
@BabyJesus215 4 ай бұрын
3 minutes my ass it took me 8 hrs to read understand everything that has to do with boating... a lot of reading
@lexikaleiia
@lexikaleiia 4 ай бұрын
Hank you for the helpful video 😊 I feel a lot smarter in this field now that I know the basics 🌺🏝️
@oddyorozuya6958
@oddyorozuya6958 5 ай бұрын
Can I start sailing at 18? Am I old for this sport
@ximono
@ximono 5 ай бұрын
It's not true that the hull speed is the maximum speed of the sailboat. It's a theoretical "limit", an _optimal_ top speed, not a physical glass ceiling. It _is_ possible to go faster, though it will probably be uncomfortable. Something I just learned. Otherwise, great video 🙂 Edit: Ah, you said so later in the video.
@didierpotolos3319
@didierpotolos3319 5 ай бұрын
Ii this my idea that the narrator looks like Woody Harrelson? hahaha!! by the way, great video!!
@fsrodeo81
@fsrodeo81 5 ай бұрын
Who s here after bayesian tragedy?