No. Remove it completely. It’s so annoying. It’s a scourge across TH-cam. I wanted this information so badly but I simply could not stay past 30 seconds. It’s absolutely maddening and senseless to have music going behind this.
For bluewater cruising, I like comfort and safety more than speed, therefore a modified full keel with a skeg rudder is my preference. For better maneuverability in a marina, a bow thruster is a big help. The only annoying thing was needing to go back several times and replay due to the 'music' blotting out your voice. Thank you for these keel instructions!
some people just naive as its gets, what exactly safety wise does a full keel give except of a big bulky space where you hit things without worrying it fell off you bottom ! my choice is a twin-keel or double keel, its best overall. its in middle of tringle safety and comfort and a bit speed. for a living boat can't go better. a Full keel usualy about 2 meters unter watter, so safety in coast region is huge problem running on ground. besides if you do, then you either fall one side or another, makind you boat lying sidewise on a coral rife or ground near cost.
@@bestvideos4ever1 Full keel gives you the option to heave to or lie ahull reliably. Which are both important safety techniques for open ocean sailing. That said, both can be done with other keel designs, but full keel is generaly the best for both as it offers the most lateral resistance - which is also great for rolly anchorages but comfort is mentioned in the video. Compared to your keel choice, full keel protects the rudder (as most twin keels are paired with spade rudders, no skegs to be found) from impacts and loose lines in the water. Also, full keel hull might point better to windward which is a safety factor for sailing in places where you have a shore that you could run aground on straight to leeward - but that can't be said wihtout comparing two specific boats, hence the 'might'.
Some very important details were left out here. Maybe mostly important that the keel also creates lift in a very similar way as the sail does. Another left out fact about winged and bulbed keels is that their main purpuse is not so much the added weight for countering heeling but rather to reduce water flow from the high pressure side of the keel to the low pressure side of the keel as this unwanted flow creates vortices and induced drag which slows the boat down. I highly recommend the book "The physics of sailing explained" by Bryon D. Anderson which goes through all this and more in very fine detail including lots of equations to prove the physics behind it all.
Because sailboats have masts they generaly have a high metacentric point. To compensate this, the boats are usually outfiited with a weighted keel to lower the center of gravity.
I've been waiting for this exact video to come my way and here it is. I'm just learning about sailing and all the different keel types had me baffled. I live off a huge tidally influenced river the Columbia. Wondering what would be best type of sail boat for my area. Very helpful.
I'm currently sailing on a volvo 70 and I have to say, performance wise canting keels are phenomenal. They easily increase speed by 2-3 knots and provide much stability and less heeling as well.
Lots of great information, great format and the humour is a great part of keeping interest. The music I must agree with others is more of a distraction than anything else. Keep up the great work and I look forward to seeing more great videos.
Great video and you explained things well. I notice that many people said you left things out and I hate being one of those people but, I'm going to be one of those people. Bolt on verses integrated keels. Most new bolts come with bolt on keels which are much more prone to breaking off. The integral keels are built in as part of the hull making them much more stable and safe, important if you are on a blue water boat.
Great starter video for beginners. The "comfort speed maneuverability" triangle is excellent. Wing keels seem great unless you run aground at which point it can turn into an "anchor" and make it difficult to pull the keel out of sand or mud. Of course this should never happen...
I think your video was very informative. I did not know the different effects on sailing that each type of keel made. I also want to say that you have a voice that doesn't make the video seem boring. Thank you
I would like to add the "multiple keel" category for catamarans and trimarans. Also explain the roll at 3:30. The center of mass of the keel MUST BE below the center of buoyancy of the ship in order to be stable in roll. Also also, is it possible to make a similar video about sail types ?? Good video, keep it up !!
hahaha love your comment! I went from a sailfish, to a day sailer to a racing skiff to a ocean 42 Irwin, back to my little little yellow styrofoam picnic going shore to shore (across a mile of lake)love bug. I would always take my mom with me, and she would trail her hand in the water shouting “wheeee”, as I tried to keep it upright and forward. Someone with a beef chopped it up and sunk it in the shallows. I waS so heartbroken. Now, at 70, I am thinking of getting a oday again.
I "feel" it much better now. I was thinking, off-hand, the fin keel just "pressed against" the water sideways to counter the sail wanting to roll the hull over in the opposite direction, but it's actually, also (mainly?) pulling down and wanting to sort of "center" or "right" the boat at all times. Thank you.
I don't really even know how to sail really, found myself on here somewhat accidentally, and caught myself grinning for most of the video and watching it to the end. Funny guy. Thanks! P.S. Also, useful info.
Hey I appreciate the video very informative don't change the thing you explain things well and I am definitely one of those beginners that is 101 for dummies and you made it quite clear for me to understand, PS I've seen your doppelganger here in Arkansas I see him quite often
I agree absolutely, it's what I want to know first, not all the other stuff e.g CC or stern cockpit etc. Then I want length waterline LWL. After that it's the design of the boat and comforts. But Keel FIRST. Yacht sales websites mostly don't even look at the keel type you have to trawl through the info to find a diagram hopefully that shows detail. Sometimes it's completely neglected.
You know there are THREE categories of underwater appendages: KEEL Types which you covered in the current video ( bravo!) Also, there is the CENTERBOARD category( also used with KEELS) and the then the DAGGERBOARD category.....yup that's it, right? The total of sailing total history in three (3) groups REALLY? JUST 3, is the complete advancement of the underwater design excluding hydro foils which lift the boat. You did a great job presenting the many variants and issues of speed, shoal draft and a touch on safety. But really, with all the developments in sails and rigging it's taken hundreds of year's to address speed with SAFETY! NOW there is finally a FOURTH ( 4th) division of underwater appendages.... SCABBOARDS are the latest division of lateral direction stability that offers All the benefits of speed and performance , but most importantly SAFETY. As you pointed out in your video keels are fixed fins ( with in some circumstances LIFTING, that is to say Can be cranked up/ lifted over a period to provide for shoal draft but more so, not quickly to provide for safety for the crew, hull, or standing rig from shock. Typically, other than FULL KEELs impact with a submerged object causes much substantial damage and potential sinking due to breaching of the hull. CENTER- BOARDS like Leeboards rotate aft to relieve the impact, however, this moves the center of effort aft effecting helm and altering& negating the blade/foil. SCABBOARDs are a completely different mechanism, but offer the instant SAFETY of a CENTERBOARD without the rotation and alteration of the FOIL shape while maintaining the Hi-Aspect section for speed & performance. SCABBOARDs can be controlled to adjust the wetted surface dependent on the point of sail. Additionally, unlike CENTERBOARDS SCABBOARDS are not serviced below the waterline rather like DAGGERBOARDS they can be removed from above deck. However, unlike DAGGERBOARDS they do not extend above deck obstructing movement not adding windage. SCABBOARDS , a FOURTH division! Want to learn more? Let's talk Njsea7@gmail.com
I have owned three types, a SeaSprite 23 with a modified Full keel, a GP14 with a centreboard/lifting keel, and A montgomery 17 with a Hybrid keel/centreboard with the centreboard housed in a smaller "stub" keel beneath the boat. I prefer the Modified Full keel for just going for a sail, the SS23 would put her rail down and just go. No muss, no fuss, and very few surprises that can be inherent in other less stable designs.
I liked and subscribed at go watch a cat video .Pluss you covered bilge keels . Most you tubers leave them out. Like yea let's not talk about the only boats that don't need slip fees and can live in the estuary for free. If a boat falls over when the tide goes out what use is it 🤷 Great video mate .
Purposely bald heads are even MORE uncomfortable, and i am having extraordinarily difficult experience resisting my powerful impulse to click away and downvote.
Shane Acton sailed Super Shrimp, an 18' yacht, around the world in the 1970s. It had a double keel, which I guess must have been a bilge keel. He loved that he could bring it up onto the shore and stand it up on its double keel.
VERY GOOD! - Sod off if I'm in a hurry, eh? Lol... Excellent video! Two questions: Q1: Canted bilge keels? (Keels could alternatively be used as ballast(s) with batteries inside as the ballast. Q2: What about low profile/horizontal sails? Seems counter-intuitive but someone I know wants to do it with a low 'X' profile of sails, bilge keels, and structure. Q2(A): Any advantage to catching wind off the top of the water?
I thought sailboats had ballast (lead) in the hull. Do some only have ballast on the keel? Yes sorry, it is a newbie question. Would like to understand ballast though!
When the ballast or lead is further below the water line the greater the effect of ballast to hold the upright. Ballast in the belly of the boat does not hold the boat upright as when the keeps weight deeper in the water.
Ballast in the hull is so old fashioned it's laughable. Thinking of 17th century ships here. . . Get the weight to the bottom of the keel and you're going to have a more stable boat ⛵
Some don't have any ballast like small boats and cats, those are what i would call form stable. They have a wide hull that counteracts the heel and are much more stable in the beginning, the further they heel over the less stable they become until they tip over and capsize. A normal monohull sailboat that has a rounder not very wide shape has allmost no initial stability and the further it heels, the larger the righting momentum from the out-of-center ballast becomes (out of center in the sense that if you draw a plum line through the heeled boat, the ballast is on on side pushing down, the sails are on the other side pushing down). The further the boat heels over, the smaller the effective sail area becomes, until the force pushing on the sails and the righting force from the ballast or hull shape are in equilibrium. A boat that relies on ballast tho can right itself no matter how far it heels over, where as a form stable boat like a cat is more comfortable but should it ever tip over, it will stay that way.
Could you explain. The weighted keelson and swing down center plate variety? I have a 1972 New Zealand built kestrel 18f trailer sailor. I would like to know what you think of it. I can send the original sale brochure if you like.
Good info thanks. I would like to cut out my long keel, split it in two to make into twin bilge keel for beaching and shallow waters. But time is an issue its 23cm wide, would have to drill it to find out whats inside.
Also remember some full keels are bolted on and some are "fully encapsulated" within the hull of the boat I believe this is the best design as you can never loose your keel.....it cant snap or be knocked off
Unless it fractures the hull and begins to flood. I just saw a video of an encapsulated keel boat being put to dry dock for maintenance. The weight of the boat being set on the keel caused catastrophic cracking. Apparently, the couple were preparing for Atlantic crossing. I believe their channel is called Pat and Frankie, if you’re interested in checking it out. I believe the mishap occurred last week.
I've been wondering why modern sailboats, even the bluewater oriented like Amel and Hallberg Rassy, never use full keels. Most commonly they use wing bulb keels. Is it because of the thecnologies that help sailors avoid rough storms, reducing the weather risks? Or is it that modern hull design can provide as much stability and confort as a full keel.
Whatched a video filmed inside the Hallberg Rassy boatyard and the boats under construction had fin keels with bulbs. It occurred to me that the developments in hydrodinamics (introduction of "wing effect" via bulbs) and materials (very heavy lead keels) might well have brought a solution of high stability without as much drag and lack of turning mobility as traditional long keels. Of course, the evolution of materials may also have allowed lighter hulls, overall compensating for heavier lead keels 🤔.
So the modified full keel is the best and safest for blue water sailing given that it provides you stability and safety but still enough speed to outrun major storms right?
I've seen on some larger sailing ships and motor yachts a type of hull with a "hybrid" dual keel design. A mix of Bilge Keel and Full Keel. They look like humps that run 3/4's of the hull's length under water. They are rounded and look like bulges. Have you seen this design before? I would think they add ballast under the waterline and add stability almost like a catamaran's dual hull.
A New and "wild" design being tested in offshore vessels is the " Hinged/Free Ballast Keel " these are attached to the hull on a large hinge that swings free from port to starboard and has a heavy bulb at the base. This keel is ALWAYS vertical to the waters surface and ocean floor ( mostly ) no matter how the vessel is heeling. While loosing an aspect of weight in ballast by the keel not being fixed to the hull, it does eliminate weather helm and increases upwind performance and boasts a 15-20% increase in speed. In heavy winds it can be tightened to different degrees to prevent knockdown making it more traditional in design. It can also be winched to a large degree in either port or starboard directions to achieve a very shallow draft if needed. Not sure if it'll make an appearance on a production vessel , but never say never.
@@Reiv311 and why would it ? There is only 2 vessels with prototypes and neither is finished or "pretty" enough to boast the design OR give anyone else fabrication ideas to copy it before the utility patent is granted
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.
Nice, I am looking at making a small(14ft) boat with bilge/daggerboards. I think this design will give good performance, while not taking a lot of space inside the boat.
If you are looking to build a phenomenal little sailboat and want virtually FREE video Tutorial on it , Check out Allan Mullholland and his channel WAVE ROVER. He just built an awesome micro blue water sailboat
we have a long fin (as in wide, not deep) on ours and with all things it is a compromise but it serves us well. Most long term cruisers and liveaboards will spend 90% of the time at anchor or in a slip if they have a few more pennies so at anchor comfort is also a very large consideration..
Nice video, but are you sure about the weight of the keel being the determining factor in a boat's speed? It's been my understanding that wetted surface had more to do with the speed since a larger surface creates more drag. I see later in the video you do make that point...
Great video man, drop the music to like 35% of current volume and you're golden :)
No. Remove it completely. It’s so annoying. It’s a scourge across TH-cam. I wanted this information so badly but I simply could not stay past 30 seconds. It’s absolutely maddening and senseless to have music going behind this.
I like the music. It creates a calmness. Great video!
I honestly didn’t notice the background music until I read your comment lol
@@leoantonio The average person with an attention span of about 20s-3m finds music relaxing and helps them continue watching.
For bluewater cruising, I like comfort and safety more than speed, therefore a modified full keel with a skeg rudder is my preference. For better maneuverability in a marina, a bow thruster is a big help. The only annoying thing was needing to go back several times and replay due to the 'music' blotting out your voice. Thank you for these keel instructions!
some people just naive as its gets, what exactly safety wise does a full keel give except of a big bulky space where you hit things without worrying it fell off you bottom ! my choice is a twin-keel or double keel, its best overall. its in middle of tringle safety and comfort and a bit speed. for a living boat can't go better. a Full keel usualy about 2 meters unter watter, so safety in coast region is huge problem running on ground. besides if you do, then you either fall one side or another, makind you boat lying sidewise on a coral rife or ground near cost.
@@bestvideos4ever1 Full keel gives you the option to heave to or lie ahull reliably. Which are both important safety techniques for open ocean sailing. That said, both can be done with other keel designs, but full keel is generaly the best for both as it offers the most lateral resistance - which is also great for rolly anchorages but comfort is mentioned in the video.
Compared to your keel choice, full keel protects the rudder (as most twin keels are paired with spade rudders, no skegs to be found) from impacts and loose lines in the water.
Also, full keel hull might point better to windward which is a safety factor for sailing in places where you have a shore that you could run aground on straight to leeward - but that can't be said wihtout comparing two specific boats, hence the 'might'.
Well-explained indeed. For me, modified full keel is king !!!
Some very important details were left out here. Maybe mostly important that the keel also creates lift in a very similar way as the sail does. Another left out fact about winged and bulbed keels is that their main purpuse is not so much the added weight for countering heeling but rather to reduce water flow from the high pressure side of the keel to the low pressure side of the keel as this unwanted flow creates vortices and induced drag which slows the boat down. I highly recommend the book "The physics of sailing explained" by Bryon D. Anderson which goes through all this and more in very fine detail including lots of equations to prove the physics behind it all.
Thanks for the book recommendation, just bought a copy.
Because sailboats have masts they generaly have a high metacentric point. To compensate this, the boats are usually outfiited with a weighted keel to lower the center of gravity.
read my reply above regarding the loose hinged keel
There is a better book IMHO, namely SEAWORTHINESS by C. A. MARCHAJ.
Excellent video explaining keels. Only negative factor is background music which adds nothing to video.
Well done. Good information for the beginner sailor. Thank you.
It’s difficult to concentrate with the music, either way, great video. Thanks for the content.
I've been waiting for this exact video to come my way and here it is. I'm just learning about sailing and all the different keel types had me baffled. I live off a huge tidally influenced river the Columbia. Wondering what would be best type of sail boat for my area. Very helpful.
Following because we're also in this area and are in the same boat - pun intended.
I'm currently sailing on a volvo 70 and I have to say, performance wise canting keels are phenomenal. They easily increase speed by 2-3 knots and provide much stability and less heeling as well.
I'm looking at smaller monohulls at the moment and trying to get all the info I can get. This was bloody helpful, thanks!
Lots of great information, great format and the humour is a great part of keeping interest. The music I must agree with others is more of a distraction than anything else. Keep up the great work and I look forward to seeing more great videos.
Great video and you explained things well. I notice that many people said you left things out and I hate being one of those people but, I'm going to be one of those people. Bolt on verses integrated keels. Most new bolts come with bolt on keels which are much more prone to breaking off. The integral keels are built in as part of the hull making them much more stable and safe, important if you are on a blue water boat.
Great starter video for beginners. The "comfort speed maneuverability" triangle is excellent. Wing keels seem great unless you run aground at which point it can turn into an "anchor" and make it difficult to pull the keel out of sand or mud. Of course this should never happen...
I think your video was very informative. I did not know the different effects on sailing that each type of keel made. I also want to say that you have a voice that doesn't make the video seem boring. Thank you
Cat videos, production values skyrockets!!!🤣🤣🤣 needed a good laugh! Awesome video, second time watching your video.
The production value of this series comment was hilarious! never seen one of your videos had to check more out just because of that statement 😂
I would like to add the "multiple keel" category for catamarans and trimarans.
Also explain the roll at 3:30. The center of mass of the keel MUST BE below the center of buoyancy of the ship in order to be stable in roll.
Also also, is it possible to make a similar video about sail types ??
Good video, keep it up !!
I'm so glad my full keel days are done. Once you sail a fin it's hard to go back. At a certain point the enjoyment comes from sailing fast and well.
Fast vs safety l choose safety.
hahaha love your comment! I went from a sailfish, to a day sailer to a racing skiff to a ocean 42 Irwin, back to my little little yellow styrofoam picnic going shore to shore (across a mile of lake)love bug. I would always take my mom with me, and she would trail her hand in the water shouting “wheeee”, as I tried to keep it upright and forward. Someone with a beef chopped it up and sunk it in the shallows. I waS so heartbroken. Now, at 70, I am thinking of getting a oday again.
One of my top ten channels.
I enjoyed watching. Looking forward to more!
Thanks Matt, appreciate it. Are you from Friesland?
@@ImproveSailing Hoi! Yes, but now living in USA.
superb commentary.. only wanted to see about a lifting keel but ended up watching the lot.😄
Very cool video, I never realised there were so many types of keels😄
The intro alone made me subscribe.
This was great! My girlfriend benefited quite a lot from your delivery method and the info presented. Well done, sir! She said you have nice eyes!!
I "feel" it much better now. I was thinking, off-hand, the fin keel just "pressed against" the water sideways to counter the sail wanting to roll the hull over in the opposite direction, but it's actually, also (mainly?) pulling down and wanting to sort of "center" or "right" the boat at all times. Thank you.
What a funny guy! I learned a lot about keels, too.
Thanks for this video. Learned a lot from it. 👍
You're welcome, thanks for leaving a comment!
Thanks!!! This is great info. And very well presented . Cheers from the US !
Enjoyed and learned - thanks!
I don't really even know how to sail really, found myself on here somewhat accidentally, and caught myself grinning for most of the video and watching it to the end. Funny guy. Thanks! P.S. Also, useful info.
Hey I appreciate the video very informative don't change the thing you explain things well and I am definitely one of those beginners that is 101 for dummies and you made it quite clear for me to understand, PS I've seen your doppelganger here in Arkansas I see him quite often
Haha I seem to have lots of doppelgangers here, btw in Dutch doppelganger is 'dubbelganger', I think it's where your word comes from!
Nice video Floki!
Very good information.
Thanks for the information so I have to look for comfort and a full keel 😎
I wish I could find a list of boats by keel type. I have tried to look for this but have not had much luck.
That's actually a really good idea for a resource on the website. I'll look into it.
I agree absolutely, it's what I want to know first, not all the other stuff e.g CC or stern cockpit etc.
Then I want length waterline LWL.
After that it's the design of the boat and comforts.
But Keel FIRST.
Yacht sales websites mostly don't even look at the keel type you have to trawl through the info to find a diagram hopefully that shows detail.
Sometimes it's completely neglected.
Nicely done, sir!
Thank you that helped me immensely, we are looking to buy a boat shortly.
You know there are THREE categories of underwater appendages: KEEL Types which you covered in the current video ( bravo!) Also, there is the CENTERBOARD category( also used with KEELS) and the then the DAGGERBOARD category.....yup that's it, right? The total of sailing total history in three (3) groups
REALLY? JUST 3, is the complete advancement of the underwater design
excluding hydro foils which lift the boat.
You did a great job presenting the many variants and issues of speed, shoal draft and a touch on safety.
But really, with all the developments in sails and rigging it's taken hundreds of year's to address speed with SAFETY!
NOW there is finally a FOURTH ( 4th) division of underwater appendages....
SCABBOARDS are the latest division of lateral direction stability that offers
All the benefits of speed and performance , but most importantly
SAFETY. As you pointed out in your video keels are fixed fins ( with in some circumstances LIFTING, that is to say
Can be cranked up/ lifted over a period
to provide for shoal draft but more so, not quickly to provide for safety for the crew, hull, or standing rig from shock.
Typically, other than FULL KEELs impact with a submerged object causes much substantial damage and potential sinking
due to breaching of the hull. CENTER- BOARDS like Leeboards rotate aft to
relieve the impact, however, this moves the center of effort aft effecting helm
and altering& negating the blade/foil.
SCABBOARDs are a completely different mechanism, but offer the instant SAFETY
of a CENTERBOARD without the rotation and alteration of the FOIL shape while maintaining the Hi-Aspect section for speed & performance. SCABBOARDs can be controlled to adjust the wetted surface dependent on the point of sail.
Additionally, unlike CENTERBOARDS
SCABBOARDS are not serviced below the waterline rather like DAGGERBOARDS
they can be removed from above deck.
However, unlike DAGGERBOARDS they do not extend above deck obstructing
movement not adding windage.
SCABBOARDS , a FOURTH division!
Want to learn more? Let's talk
Njsea7@gmail.com
Great humour. Agree the volume of music can be a tad lower. You are definitely entertaining to watch. Do you have sailing basics?
Great video. I have a 26' British Westerly Centaur bilge keel. It doesn't get any better. 3' draft and I can glide up to a sand bar and park.
Super voice and presention style , like it Peter T England
Thanks Peter, I appreciate it.
I have owned three types, a SeaSprite 23 with a modified Full keel, a GP14 with a centreboard/lifting keel, and A montgomery 17 with a Hybrid keel/centreboard with the centreboard housed in a smaller "stub" keel beneath the boat. I prefer the Modified Full keel for just going for a sail, the SS23 would put her rail down and just go. No muss, no fuss, and very few surprises that can be inherent in other less stable designs.
Excellent. Thank you!
Thanks for the comment, and you're welcome!
Een Nederlander !!! Gaaf ik woon op Aruba en ga over denk ik ( hoop it ) 3 of 4 jaar een boot kopen om op te wonen . Dank je voor de tips
3:20 That joke was quite funny, subbed for that. Hoping to learn a lot watching you (^-^)
Awesome video, thanks for posting!
Great video. Loved your English! (Better than most natives!)
Great explanation, really appreciated it :)
Best video explaining Keels. 👍💪
Very informative.
Very good information. Great job
Lots of great info. Thanks!
I liked and subscribed at go watch a cat video .Pluss you covered bilge keels . Most you tubers leave them out. Like yea let's not talk about the only boats that don't need slip fees and can live in the estuary for free.
If a boat falls over when the tide goes out what use is it 🤷
Great video mate .
Drop the music when giving information. Its uneccisarry and entirely disctracts from the info. Use music between segments otherwise leave it out.
Purposely bald heads are even MORE uncomfortable, and i am having extraordinarily difficult experience resisting my powerful impulse to click away and downvote.
Please at least reduce it
Music was not a distraction for me. 😊
great video, thanks for making it!
Make a video about different types of rudders
Music is too loud. You've got good content, why put music to distract it?
Indeed, one of my common complaints.
Funny, I didn't even notice there was music until after I was finished watching, read your comment and went back to see what you were referring to.
Thanks, great informative video
Great channel. Thanks for posting.
Thank tou for great informations! Nice vídeo!
Thanks for sharing 👌that’s was very helpful
Very helpful. Thank you.
Saya sudah klik tombol jempol dan subscribe. Aku senang dengan penjelasan di videomu. Terima kasih banyak. Slam dari Indonesia.
master class in sailing
Shane Acton sailed Super Shrimp, an 18' yacht, around the world in the 1970s. It had a double keel, which I guess must have been a bilge keel. He loved that he could bring it up onto the shore and stand it up on its double keel.
Very informative!
Very nice video. My sailboat has a wing keel.
What in your opinion would be the best keel for sailing in the aegean sea?
Nicely done Sir
VERY GOOD!
- Sod off if I'm in a hurry, eh? Lol... Excellent video!
Two questions:
Q1: Canted bilge keels?
(Keels could alternatively be used as ballast(s) with batteries inside as the ballast.
Q2: What about low profile/horizontal sails?
Seems counter-intuitive but someone I know wants to do it with a low 'X' profile of sails, bilge keels, and structure.
Q2(A): Any advantage to catching wind off the top of the water?
Very nicely done
I thought sailboats had ballast (lead) in the hull. Do some only have ballast on the keel? Yes sorry, it is a newbie question. Would like to understand ballast though!
When the ballast or lead is further below the water line the greater the effect of ballast to hold the upright. Ballast in the belly of the boat does not hold the boat upright as when the keeps weight deeper in the water.
Ballast in the hull is so old fashioned it's laughable.
Thinking of 17th century ships here. . .
Get the weight to the bottom of the keel and you're going to have a more stable boat ⛵
Some don't have any ballast like small boats and cats, those are what i would call form stable. They have a wide hull that counteracts the heel and are much more stable in the beginning, the further they heel over the less stable they become until they tip over and capsize. A normal monohull sailboat that has a rounder not very wide shape has allmost no initial stability and the further it heels, the larger the righting momentum from the out-of-center ballast becomes (out of center in the sense that if you draw a plum line through the heeled boat, the ballast is on on side pushing down, the sails are on the other side pushing down). The further the boat heels over, the smaller the effective sail area becomes, until the force pushing on the sails and the righting force from the ballast or hull shape are in equilibrium. A boat that relies on ballast tho can right itself no matter how far it heels over, where as a form stable boat like a cat is more comfortable but should it ever tip over, it will stay that way.
Excelente tu video, muchas gracias Voy a acondicionar un Lightning quiero suprimir la orza abatible por una longitudinal más corta , que me sugieres?
Informative..great video
Are they made of a heavier material? How can a fin counter balance the weight if the whole ship?
Well done....Very informative!
Awesome information
The bilge keel image shows the boat has two rudders. Does a bilge keel vessel have to have two rudders?
Mine doesn’t 23foot Tylercraft late 50’s model
Could you explain. The weighted keelson and swing down center plate variety? I have a 1972 New Zealand built kestrel 18f trailer sailor. I would like to know what you think of it. I can send the original sale brochure if you like.
Good info thanks. I would like to cut out my long keel, split it in two to make into twin bilge keel for beaching and shallow waters. But time is an issue its 23cm wide, would have to drill it to find out whats inside.
Great video 👏🏻👏🏻
Very informative- thank you
Great video. You didn't mention shoal draft keels.
Also remember some full keels are bolted on and some are "fully encapsulated" within the hull of the boat I believe this is the best design as you can never loose your keel.....it cant snap or be knocked off
Unless it fractures the hull and begins to flood.
I just saw a video of an encapsulated keel boat being put to dry dock for maintenance. The weight of the boat being set on the keel caused catastrophic cracking. Apparently, the couple were preparing for Atlantic crossing.
I believe their channel is called Pat and Frankie, if you’re interested in checking it out. I believe the mishap occurred last week.
I've been wondering why modern sailboats, even the bluewater oriented like Amel and Hallberg Rassy, never use full keels. Most commonly they use wing bulb keels. Is it because of the thecnologies that help sailors avoid rough storms, reducing the weather risks? Or is it that modern hull design can provide as much stability and confort as a full keel.
i'd like to know the answer to this one.
@@emmaearnshaw3282 Me too :). Maybe the publisher of the excelent video can enlighten us on that subject. Let's see...
Whatched a video filmed inside the Hallberg Rassy boatyard and the boats under construction had fin keels with bulbs. It occurred to me that the developments in hydrodinamics (introduction of "wing effect" via bulbs) and materials (very heavy lead keels) might well have brought a solution of high stability without as much drag and lack of turning mobility as traditional long keels. Of course, the evolution of materials may also have allowed lighter hulls, overall compensating for heavier lead keels 🤔.
Hoe vaak zeil je en wat voor boot heb jezelf?
really nice video :) also, I love your facial expression, you look very much like one of my best friends :D
Any tips for a decent search engine to find sailboats by keel type? Looking for active manufacturers of modified keels. Thanks
So the modified full keel is the best and safest for blue water sailing given that it provides you stability and safety but still enough speed to outrun major storms right?
Sailboats don't 'outrun' major storms in the open ocean. The small difference in speed between one keel design and another isn't going to change that.
Thanks mate
I've seen on some larger sailing ships and motor yachts a type of hull with a "hybrid" dual keel design. A mix of Bilge Keel and Full Keel. They look like humps that run 3/4's of the hull's length under water. They are rounded and look like bulges. Have you seen this design before? I would think they add ballast under the waterline and add stability almost like a catamaran's dual hull.
I have never seen that keel design before.
A New and "wild" design being tested in offshore vessels is the
" Hinged/Free Ballast Keel "
these are attached to the hull on a large hinge that swings free from port to starboard and has a heavy bulb at the base. This keel is ALWAYS vertical to the waters surface and ocean floor ( mostly ) no matter how the vessel is heeling. While loosing an aspect of weight in ballast by the keel not being fixed to the hull, it does eliminate weather helm and increases upwind performance and boasts a 15-20% increase in speed. In heavy winds it can be tightened to different degrees to prevent knockdown making it more traditional in design. It can also be winched to a large degree in either port or starboard directions to achieve a very shallow draft if needed. Not sure if it'll make an appearance on a production vessel , but never say never.
Funny, google couldn't find anything like that.
@@Reiv311 and why would it ? There is only 2 vessels with prototypes and neither is finished or "pretty" enough to boast the design OR give anyone else fabrication ideas to copy it before the utility patent is granted
@@Reiv311 The Magregor 65' is the one closest to achieving the goal and being tested in the Cape Hatteras area
@@SailProMarina would be interesting to read more about how it works, the pros and cons, etc.
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.
Which one suitable for regatta's race?
Great vid. Thanks.
Nice, I am looking at making a small(14ft) boat with bilge/daggerboards. I think this design will give good performance, while not taking a lot of space inside the boat.
If you are looking to build a phenomenal little sailboat and want virtually FREE video Tutorial on it , Check out Allan Mullholland and his channel WAVE ROVER.
He just built an awesome micro blue water sailboat
Are flat bottom sail boats consider full keel sailboats?
we have a long fin (as in wide, not deep) on ours and with all things it is a compromise but it serves us well. Most long term cruisers and liveaboards will spend 90% of the time at anchor or in a slip if they have a few more pennies so at anchor comfort is also a very large consideration..
Great, thanks
Very welcome
Nice video, but are you sure about the weight of the keel being the determining factor in a boat's speed? It's been my understanding that wetted surface had more to do with the speed since a larger surface creates more drag. I see later in the video you do make that point...
Sitting on my Rival Bowman 40 at present, I would add that the patent Scheel keel should have been mentioned as it is a brilliant compromise.