Canting Ballast, Twin Foil
Anyone seen one of these CBTF boats? The full article is available at:
http://www.popularmechanics.com/outd...s/1276881.html. ---------------------------------------------------------------------- "Speeds of 20 knots on a sport sailboat? Impossible. A 40-ft. sailboat that beats 70-ft. racing yachts? Not likely. A yacht that can sail without heeling over, yet go faster than anything its own size? Hard to believe. Well, check out the DynaFlyer 40 Red Hornetand start believing. What sort of magic is this? Just remember four letters: CBTF. They stand for "canting ballast, twin foil." It's a concept that is revolutionizing the yachting world, especially for the mainstream sailor. The DynaFlyer design is the brainchild of two yacht designers with extensive America's Cup backgrounds, Matt Brown and Bill Burns. What the pair have done with their CBTF concept is to separate two sailing needs–lateral resistance and stability–and solve them independently. The canting ballast is the answer. Their DynaFlyer 40 has no conventional keel. Instead, an 1800-pound lead torpedo is suspended on a 6-ft. strut made from a high-strength stainless steel billet. Using a cleverly designed hydraulic system inside the boat, the entire strut and torpedo can be angled as much as 55 degrees to each side. Operated by buttons in the cockpit, the canting ballast moves quickly: just 12 seconds from lock to lock. With the ballast in the straight down position and a 10-knot breeze, the DynaFlyer heels about 30 degrees. Push the control button for a moment, and the boat straightens up to just 10 degrees of heel while the speed quickly increases from 5.5 knots to 7 knots. Technical sophistication is one thing, but on-the-water performance is another, and the DynaFlyer 40 has it in spades. In a 15-knot breeze, the Red Hornet can reach 12 to 13 knots while reaching with spinnaker, which would be satisfactory speeds for a catamaran. While racing, the Red Hornet has often sailed faster. The one absolute fact is that a sailboat sailed upright is both faster and more comfortable. As the CBTF philosophy of "sail flat, sail fast" spreads throughout the sailing universe, it's likely that the image of the sharply heeled sailboat will one day be just a romantic memory." Jim |
Canting Ballast, Twin Foil
"JimC" wrote in message
et... Anyone seen one of these CBTF boats? The full article is available at: http://www.popularmechanics.com/outd...s/1276881.html. ---------------------------------------------------------------------- "Speeds of 20 knots on a sport sailboat? Impossible. A 40-ft. sailboat that beats 70-ft. racing yachts? Not likely. A yacht that can sail without heeling over, yet go faster than anything its own size? Hard to believe. Well, check out the DynaFlyer 40 Red Hornetand start believing. What sort of magic is this? Just remember four letters: CBTF. They stand for "canting ballast, twin foil." It's a concept that is revolutionizing the yachting world, especially for the mainstream sailor. The DynaFlyer design is the brainchild of two yacht designers with extensive America's Cup backgrounds, Matt Brown and Bill Burns. What the pair have done with their CBTF concept is to separate two sailing needs–lateral resistance and stability–and solve them independently. The canting ballast is the answer. Their DynaFlyer 40 has no conventional keel. Instead, an 1800-pound lead torpedo is suspended on a 6-ft. strut made from a high-strength stainless steel billet. Using a cleverly designed hydraulic system inside the boat, the entire strut and torpedo can be angled as much as 55 degrees to each side. Operated by buttons in the cockpit, the canting ballast moves quickly: just 12 seconds from lock to lock. With the ballast in the straight down position and a 10-knot breeze, the DynaFlyer heels about 30 degrees. Push the control button for a moment, and the boat straightens up to just 10 degrees of heel while the speed quickly increases from 5.5 knots to 7 knots. Technical sophistication is one thing, but on-the-water performance is another, and the DynaFlyer 40 has it in spades. In a 15-knot breeze, the Red Hornet can reach 12 to 13 knots while reaching with spinnaker, which would be satisfactory speeds for a catamaran. While racing, the Red Hornet has often sailed faster. The one absolute fact is that a sailboat sailed upright is both faster and more comfortable. As the CBTF philosophy of "sail flat, sail fast" spreads throughout the sailing universe, it's likely that the image of the sharply heeled sailboat will one day be just a romantic memory." Jim Interesting, but what's the advantage over a tri or cat? -- "j" ganz @@ www.sailnow.com |
Canting Ballast, Twin Foil
Capt. JG wrote:
"JimC" wrote in message et... Anyone seen one of these CBTF boats? The full article is available at: http://www.popularmechanics.com/outd...s/1276881.html. ---------------------------------------------------------------------- "Speeds of 20 knots on a sport sailboat? Impossible. A 40-ft. sailboat that beats 70-ft. racing yachts? Not likely. A yacht that can sail without heeling over, yet go faster than anything its own size? Hard to believe. Well, check out the DynaFlyer 40 Red Hornetand start believing. What sort of magic is this? Just remember four letters: CBTF. They stand for "canting ballast, twin foil." It's a concept that is revolutionizing the yachting world, especially for the mainstream sailor. The DynaFlyer design is the brainchild of two yacht designers with extensive America's Cup backgrounds, Matt Brown and Bill Burns. What the pair have done with their CBTF concept is to separate two sailing needs–lateral resistance and stability–and solve them independently. The canting ballast is the answer. Their DynaFlyer 40 has no conventional keel. Instead, an 1800-pound lead torpedo is suspended on a 6-ft. strut made from a high-strength stainless steel billet. Using a cleverly designed hydraulic system inside the boat, the entire strut and torpedo can be angled as much as 55 degrees to each side. Operated by buttons in the cockpit, the canting ballast moves quickly: just 12 seconds from lock to lock. With the ballast in the straight down position and a 10-knot breeze, the DynaFlyer heels about 30 degrees. Push the control button for a moment, and the boat straightens up to just 10 degrees of heel while the speed quickly increases from 5.5 knots to 7 knots. Technical sophistication is one thing, but on-the-water performance is another, and the DynaFlyer 40 has it in spades. In a 15-knot breeze, the Red Hornet can reach 12 to 13 knots while reaching with spinnaker, which would be satisfactory speeds for a catamaran. While racing, the Red Hornet has often sailed faster. The one absolute fact is that a sailboat sailed upright is both faster and more comfortable. As the CBTF philosophy of "sail flat, sail fast" spreads throughout the sailing universe, it's likely that the image of the sharply heeled sailboat will one day be just a romantic memory." Jim Interesting, but what's the advantage over a tri or cat? I have to confess that my cat can't do this: http://www.ksopen50.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=682 The last time we cruised Maine we had a chance to see this boat on the hard in Freeport. Its an awesome boat - she won the Route de Rhume beating the Class 2 Monohull record by 18 hours. |
Canting Ballast, Twin Foil
Hey JimC welcome back
"JimC" wrote Anyone seen one of these CBTF boats? The full article is available at: http://www.popularmechanics.com/outd...s/1276881.html. ---------------------------------------------------------------------- "Speeds of 20 knots on a sport sailboat? Impossible. A 40-ft. sailboat that beats 70-ft. racing yachts? Not likely. A yacht that can sail without heeling over, yet go faster than anything its own size? Hard to believe. Not at all. As with everything, it depends on whether you're comparing apples to oranges. Well, check out the DynaFlyer 40 Red Hornetand start believing. What sort of magic is this? Just remember four letters: CBTF. They stand for "canting ballast, twin foil." It's a concept that is revolutionizing the yachting world, The funny thing is, it's not that new an idea. I saw a boat outfitted with twin foils back in the 1960s although it didn't work as well as the new boats (massive amounts of number-crunching really does help design). It wouldn't surprise me a bit if the same idea had occured to several people earlier on. The one absolute fact is that a sailboat sailed upright is both faster and more comfortable. Again, it depends. When the means of providing righting moment don't add more drag than the power developed, then yes it's faster. Usually heeling means helm, which means you're dragging the rudder sideways. OTOH a lot of narrow boats will sail quite happily at startling angles of heel and cannot develop any power unless laid over. As the CBTF philosophy of "sail flat, sail fast" spreads throughout the sailing universe, it's likely that the image of the sharply heeled sailboat will one day be just a romantic memory." Maybe, maybe not. FWIW I have seen these boats sail a couple of times, the 'production' version of the Schock 40 CBTF which is indeed pretty dang fast. Wet, too. But it's a tiny boat, a sliver of a hull with weekender accomodations; and it takes some practice to make the thing go. The verdict of one owner I've talked with is that it's not really much fun (of course, he had a very difficult rating also). "Capt. JG" wrote: Interesting, but what's the advantage over a tri or cat? You can park it in a normal slip. -signed- Injun Ear (formerly known as Eagle Eye) |
Canting Ballast, Twin Foil
"Jeff" wrote in message . .. Capt. JG wrote: "JimC" wrote in message et... Anyone seen one of these CBTF boats? The full article is available at: http://www.popularmechanics.com/outd...s/1276881.html. ---------------------------------------------------------------------- "Speeds of 20 knots on a sport sailboat? Impossible. A 40-ft. sailboat that beats 70-ft. racing yachts? Not likely. A yacht that can sail without heeling over, yet go faster than anything its own size? Hard to believe. Well, check out the DynaFlyer 40 Red Hornetand start believing. What sort of magic is this? Just remember four letters: CBTF. They stand for "canting ballast, twin foil." It's a concept that is revolutionizing the yachting world, especially for the mainstream sailor. The DynaFlyer design is the brainchild of two yacht designers with extensive America's Cup backgrounds, Matt Brown and Bill Burns. What the pair have done with their CBTF concept is to separate two sailing needs–lateral resistance and stability–and solve them independently. The canting ballast is the answer. Their DynaFlyer 40 has no conventional keel. Instead, an 1800-pound lead torpedo is suspended on a 6-ft. strut made from a high-strength stainless steel billet. Using a cleverly designed hydraulic system inside the boat, the entire strut and torpedo can be angled as much as 55 degrees to each side. Operated by buttons in the cockpit, the canting ballast moves quickly: just 12 seconds from lock to lock. With the ballast in the straight down position and a 10-knot breeze, the DynaFlyer heels about 30 degrees. Push the control button for a moment, and the boat straightens up to just 10 degrees of heel while the speed quickly increases from 5.5 knots to 7 knots. Technical sophistication is one thing, but on-the-water performance is another, and the DynaFlyer 40 has it in spades. In a 15-knot breeze, the Red Hornet can reach 12 to 13 knots while reaching with spinnaker, which would be satisfactory speeds for a catamaran. While racing, the Red Hornet has often sailed faster. The one absolute fact is that a sailboat sailed upright is both faster and more comfortable. As the CBTF philosophy of "sail flat, sail fast" spreads throughout the sailing universe, it's likely that the image of the sharply heeled sailboat will one day be just a romantic memory." Jim Interesting, but what's the advantage over a tri or cat? I have to confess that my cat can't do this: http://www.ksopen50.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=682 The last time we cruised Maine we had a chance to see this boat on the hard in Freeport. Its an awesome boat - she won the Route de Rhume beating the Class 2 Monohull record by 18 hours. Another RETARD! Only a brainless twit would view that video and think it meant anything? Did you notice something you sucker-born-every-minute kind of guy? Did you see any mast, boom, sails, running rigging or standing rigging? No you didn't and the thought never even occurred in what passes as your brain that the boat would not self-right like that in the real world with a sailing rig attached. Jeff, you are the perfect example of how stupidity gets mainstreamed. And you dare make fun of the wise-beyond-belief Jax Ashby? You, sir, are no Mensan! Harry Harris -- Posted via a free Usenet account from http://www.teranews.com |
Canting Ballast, Twin Foil
wrote in message
oups.com... Hey JimC welcome back "JimC" wrote Anyone seen one of these CBTF boats? The full article is available at: http://www.popularmechanics.com/outd...s/1276881.html. ---------------------------------------------------------------------- "Speeds of 20 knots on a sport sailboat? Impossible. A 40-ft. sailboat that beats 70-ft. racing yachts? Not likely. A yacht that can sail without heeling over, yet go faster than anything its own size? Hard to believe. Not at all. As with everything, it depends on whether you're comparing apples to oranges. Well, check out the DynaFlyer 40 Red Hornetand start believing. What sort of magic is this? Just remember four letters: CBTF. They stand for "canting ballast, twin foil." It's a concept that is revolutionizing the yachting world, The funny thing is, it's not that new an idea. I saw a boat outfitted with twin foils back in the 1960s although it didn't work as well as the new boats (massive amounts of number-crunching really does help design). It wouldn't surprise me a bit if the same idea had occured to several people earlier on. The one absolute fact is that a sailboat sailed upright is both faster and more comfortable. Again, it depends. When the means of providing righting moment don't add more drag than the power developed, then yes it's faster. Usually heeling means helm, which means you're dragging the rudder sideways. OTOH a lot of narrow boats will sail quite happily at startling angles of heel and cannot develop any power unless laid over. As the CBTF philosophy of "sail flat, sail fast" spreads throughout the sailing universe, it's likely that the image of the sharply heeled sailboat will one day be just a romantic memory." Maybe, maybe not. FWIW I have seen these boats sail a couple of times, the 'production' version of the Schock 40 CBTF which is indeed pretty dang fast. Wet, too. But it's a tiny boat, a sliver of a hull with weekender accomodations; and it takes some practice to make the thing go. The verdict of one owner I've talked with is that it's not really much fun (of course, he had a very difficult rating also). "Capt. JG" wrote: Interesting, but what's the advantage over a tri or cat? You can park it in a normal slip. -signed- Injun Ear (formerly known as Eagle Eye) You can park an F-boat in a normal slip also... -- "j" ganz @@ www.sailnow.com |
Canting Ballast, Twin Foil
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Canting Ballast, Twin Foil
Where's those pics you promised us?
Scotty "JimC" wrote in message ... wrote: Hey JimC welcome back Thanks. I'm hoping I'll be able to get in some sailing next month. Jim |
Canting Ballast, Twin Foil
"Scotty" w@u wrote in message . .. Where's those pics you promised us? Scotty Please don't encourage him. His constant whining is so pathetic. The only thing more pathetic is the boat he wasted his slip-and-fall lawyer money on. Do a Google search on Buccaneer 26. It is almost the equal in ugly to the MacGregor 26. Wilbur Hubbard |
Canting Ballast, Twin Foil
On Sun, 25 Feb 2007 19:54:05 -0500, Wilbur Hubbard wrote
(in article ): "Scotty" w@u wrote in message . .. Where's those pics you promised us? Scotty Please don't encourage him. His constant whining is so pathetic. The only thing more pathetic is the boat he wasted his slip-and-fall lawyer money on. Do a Google search on Buccaneer 26. It is almost the equal in ugly to the MacGregor 26. Wilbur Hubbard We used to say that anyone who owned a Buccaneer had nothing between their fu**ing ears. -- Mundo, The Captain who is a bully and an ass |
Canting Ballast, Twin Foil
"Mundo" wrote in message . net... On Sun, 25 Feb 2007 19:54:05 -0500, Wilbur Hubbard wrote (in article ): "Scotty" w@u wrote in message . .. Where's those pics you promised us? Scotty Please don't encourage him. His constant whining is so pathetic. The only thing more pathetic is the boat he wasted his slip-and-fall lawyer money on. Do a Google search on Buccaneer 26. It is almost the equal in ugly to the MacGregor 26. Wilbur Hubbard We used to say that anyone who owned a Buccaneer had nothing between their fu**ing ears. -- Mundo, The Captain who is a bully and an ass As cheap and ugly as the Buccaneer was, it was easily ten times more of a sailboat than a MacGregor 26. It had a real keel and a real mast. It had more room inside and it had real bulkheads inside, too. Wilbur Hubbard |
Canting Ballast, Twin Foil
"Wilbur Hubbard" wrote in message As cheap and ugly as the Buccaneer was, it was easily ten times more of a sailboat than a MacGregor 26. It had a real keel and a real mast. It had more room inside and it had real bulkheads inside, too. Rather like a Coronado, eh? The cheap and ugly parts, that is. Max |
Canting Ballast, Twin Foil
"Wilbur Hubbard" wrote i As cheap and ugly as the Buccaneer was, it was easily ten times more of a sailboat than a MacGregor 26. It had a real keel and a real mast. It had more room inside and it had real bulkheads inside, too. it has no keel? SV |
Canting Ballast, Twin Foil
"Wilbur Hubbard" wrote:
As cheap and ugly as the Buccaneer was, it was easily ten times more of a sailboat than a MacGregor 26. It had a real keel and a real mast. It had more room inside and it had real bulkheads inside, too. The Buccaneer 18 was pretty cool boat, although it was originally a Chrysler product. The bigger Buccaneers were pretty sad. Roomy yes.... real bulkheads (is that an issue for some people)... yes but I would like to see the mathematical derivation of this 10x claim. "Scotty" wrote: it has no keel? The emperor has no keel! -signed- Injun Ear (formerly known as Eagle Eye) |
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