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Well, feeding two 350 cubic inch Chevy engines (as our friends do with their
yacht on Lake Michigan), to go no where at 20 mph, might make any of us choose to party at the dock instead -- high prices or no. Tell me again... how much do you pay for a hamburger? Jose -- Quantum Mechanics is like this: God =does= play dice with the universe, except there's no God, and there's no dice. And maybe there's no universe. for Email, make the obvious change in the address. |
#2
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Well, feeding two 350 cubic inch Chevy engines (as our friends do with
their yacht on Lake Michigan), to go no where at 20 mph, might make any of us choose to party at the dock instead -- high prices or no. Tell me again... how much do you pay for a hamburger? Point taken, but my hamburger is likely to be served in a different *state*, possibly with relatives I might not see otherwise. A boat -- especially an ocean-going yacht -- almost never leaves dock. But when it does, you go very slowly, usually in seas that make our "turbulence" seem pretty tame, don't get very far, and you had better have a high credit limit on your Visa card, cuz re-filling those tanks ain't pretty. -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
#3
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Point taken, but my hamburger is likely to be served in a different *state*,
possibly with relatives I might not see otherwise. A boat -- especially an ocean-going yacht -- almost never leaves dock. But when it does, you go very slowly, usually in seas that make our "turbulence" seem pretty tame, don't get very far, and you had better have a high credit limit on your Visa card, cuz re-filling those tanks ain't pretty. Well, I don't think the point was fully taken. I don't know about you folks in Iowa, but for me going to a different state isn't all that exciting, especially for a hamburger or a stack of pancakes. And I bet those boat people are saying to each other "sure, but you get into one of them flying things and you end up going so fast you can't see much, and before you blink your eyes, you're there." And if I wanted to entertain 12 people with my (club's) cherokee, I'd have to have a high credit rating too, and I wouldn't get very far either. It would be four trips, most of the time they couldn't talk to each other, most of them couldn't talk to me most of the time, and (if we actually went anywhere) we'd have to do it again afterwards. Or I could entertain them with my aerobatics. I'd entertain you folks too, in the Darwin writeup. We won't even talk about if we wanted to to go a place that is served by Signature. I don't have enough credit cards to cover that! When the only tool you have is a hammer, =everything= looks like a nail. Jose -- Quantum Mechanics is like this: God =does= play dice with the universe, except there's no God, and there's no dice. And maybe there's no universe. for Email, make the obvious change in the address. |
#4
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Boats that go places don't use their engines much.
ObOrganization: Seven Seas Cruising Association. Lots of circumnavigators there. Don |
#5
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![]() Jay Honeck wrote: A boat -- especially an ocean-going yacht -- almost never leaves dock. But when it does, you go very slowly, usually in seas that make our "turbulence" seem pretty tame, don't get very far, and you had better have a high credit limit on your Visa card, cuz re-filling those tanks ain't pretty. You know an awful lot about boats for a guy who lives in a place where the biggest body of water most people ever see has a four legs and a drain at the bottom ![]() What you're referring to is a motor yacht designed for bombing around near coastal waters. Aside from the sportfishers that may go offshore, these boats stay within sight of shore and have their range severely limited by fuel needs. "Turbulence" out there is no worse than we get in the air and often less, especially in the summer. Most of these boats have no business in serious weather. If you want to see a true oceangoing yacht, look at something like the Nordhavn 62'. These "expedition yachts" are becoming much more popular and look more like commercial ships than speedboats. The N62 is designed to run at 9 knots on a single 225HP diesel engine turning a 40" propeller at very low RPM. A typical 40' coastal stinkpotter will run 2x450hp engines turning surface-penetrating props that look like they came out of a blender. The Nordhavn doesn't go fast but with 2500 gallon tanks it can cross an ocean without stopping, and those big slow diesels are built to run for weeks on end. 2MPG may sound awful but keep in mind the boat weighs 80 tons (!). And it's bigger inside than most condos: http://www.nordhavn.com/62/interiorThumbs.php4 The key is speed. A boat runs most efficiently at "hull speed" which is a function of length. If you want to push the hull faster than that, fuel consumption goes up ridiculously, even worse than with airplanes. -cwk. |
#6
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![]() wrote in message ups.com... Jay Honeck wrote: A boat -- especially an ocean-going yacht -- almost never leaves dock. But when it does, you go very slowly, usually in seas that make our "turbulence" seem pretty tame, don't get very far, and you had better have a high credit limit on your Visa card, cuz re-filling those tanks ain't pretty. You know an awful lot about boats for a guy who lives in a place where the biggest body of water most people ever see has a four legs and a drain at the bottom ![]() Jay loved in Wisconsin. Lake Michigan and all you know. What you're referring to is a motor yacht designed for bombing around near coastal waters. Aside from the sportfishers that may go offshore, these boats stay within sight of shore and have their range severely limited by fuel needs. "Turbulence" out there is no worse than we get in the air and often less, especially in the summer. Most of these boats have no business in serious weather. Spend some time on the Great Lakes. They often make the ocean look like childs play. Ted Turner got humbled and you would too. The key is speed. A boat runs most efficiently at "hull speed" which is a function of length. If you want to push the hull faster than that, fuel consumption goes up ridiculously, even worse than with airplanes. Only true when talking about displacement hulls. Has nothing to do with planing hulls which include the vast majority of power boats. Planing hulls burn a tremendous amount of fuel untill they reach planing speed. -cwk. |
#7
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Jay loved in Wisconsin.
Dang -- I *knew* there were hidden cameras around, somewhere! ;-) -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
#8
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![]() Dave Stadt wrote: wrote in message ups.com... The key is speed. A boat runs most efficiently at "hull speed" which is a function of length. If you want to push the hull faster than that, fuel consumption goes up ridiculously, even worse than with airplanes. Only true when talking about displacement hulls. Has nothing to do with planing hulls which include the vast majority of power boats. Planing hulls burn a tremendous amount of fuel untill they reach planing speed. A planing hull can still be driven more efficiently (in MPG terms) at hull speed than at or above planing speed. It is true that a planing hull is least efficient at the speeds above displacement but below planing, but even up on the step you'll get lower MPG. Even on a boat like a Cigarette which has a hull and drive system optimized for nothing but go-fast, you'll get better mileage running at hull speed: http://powerandmotoryacht.com/boatte...te/index2.html Likewise, hulls designed for planing are vary bad when you get serious weather. The very characteristics which allow them to go so fast also make them prone to pitchpoling and broaching. -cwk. |
#9
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Or get a Seaplane and do both. I have two boats, a right boat and a
left boat :-) |
#10
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Dave Stadt wrote:
Jay loved in Wisconsin. Lake Michigan and all you know. Are you implying that he doesn't love in Iowa? Sorry to hear that, Jay! Matt |
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