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#41
posted to rec.boats
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Propane canister from hell
On Jun 14, 11:01*pm, Wayne B wrote:
On Tue, 14 Jun 2011 19:26:59 -0700, wrote: But he's out cruising the Bahamas so he's doing something right. Yes, that's laudable, but he also doesn't appear to completely have his sh*t together either. Fixing things with what you have on hand and dealing with the unexpected are all part of international cruising, sometimes a big part. *The big mega yacht cruisers are maintained to a very high degree of reliability but they generally have an engineer in the crew and a big supply of spares on hand to keep things working. * Since we bought the trawler 7 years ago I've learned enough new skills, and acquired the tools, to be a junior tradesman in 3 or 4 different fields. 3% propane in air (by volume) is explosive. Think about that when you think of the size of your bilge and consider that concentration can rise quickly becaus eof the density of the propane. Then consider that when it explodes the gas then takes up 270X the volume of the previous air/propane mixture and you can see it can make a big explosion for a small amount of propane. A small leaking cylinder is a major safety hazard requiring immediate action. Even a few minutes of a leaking cylinder can turn your boat into a bomb. By volume propane is more explosive than gasoline and is explosive over a wider range of concentration so is more dangerous than gasoline vapor. You may not want to admit I am right but if thinking about it keeps you from storing a canister on your boat then I am happy. |
#42
posted to rec.boats
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Propane canister from hell
"Frogwatch" wrote in message
... On Jun 14, 11:01 pm, Wayne B wrote: On Tue, 14 Jun 2011 19:26:59 -0700, wrote: But he's out cruising the Bahamas so he's doing something right. Yes, that's laudable, but he also doesn't appear to completely have his sh*t together either. Fixing things with what you have on hand and dealing with the unexpected are all part of international cruising, sometimes a big part. The big mega yacht cruisers are maintained to a very high degree of reliability but they generally have an engineer in the crew and a big supply of spares on hand to keep things working. Since we bought the trawler 7 years ago I've learned enough new skills, and acquired the tools, to be a junior tradesman in 3 or 4 different fields. 3% propane in air (by volume) is explosive. Think about that when you think of the size of your bilge and consider that concentration can rise quickly becaus eof the density of the propane. Then consider that when it explodes the gas then takes up 270X the volume of the previous air/propane mixture and you can see it can make a big explosion for a small amount of propane. A small leaking cylinder is a major safety hazard requiring immediate action. Even a few minutes of a leaking cylinder can turn your boat into a bomb. By volume propane is more explosive than gasoline and is explosive over a wider range of concentration so is more dangerous than gasoline vapor. You may not want to admit I am right but if thinking about it keeps you from storing a canister on your boat then I am happy. Reply: For those who think a 16 oz. container is not much, think how much you can cook on a 2 burner Coleman stove with just one canister. Or how long a propane lantern sheds light for with a single cartridge. |
#43
posted to rec.boats
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Propane canister from hell
On Tue, 14 Jun 2011 19:54:31 -0700 (PDT), Frogwatch
wrote: On Jun 14, 10:28*pm, North Star wrote: On Jun 14, 11:24*pm, wrote: On Tue, 14 Jun 2011 15:10:49 -0700 (PDT), North Star wrote: On Jun 14, 5:22*pm, Frogwatch wrote: On Jun 14, 4:12*pm, Richard Casady wrote: On Tue, 14 Jun 2011 12:49:49 -0700 (PDT), Frogwatch wrote: On Jun 14, 3:38*pm, wrote: On Tue, 14 Jun 2011 15:07:16 -0400, iBoat wrote: In article 4789ce48-54a7-4d7a-8dc5- , says... On Jun 14, 2:30 pm, I_am_Tosk wrote: In article , says... In article , says... On Tue, 14 Jun 2011 10:08:51 -0700 (PDT), Frogwatch wrote: On Jun 14, 1:05 pm, wrote: On Tue, 14 Jun 2011 09:04:40 -0700 (PDT), Frogwatch wrote: Thinking about my wayward dinghy caused me to remember another wandering object on one of my recent Bahamas trips. I had finished cooking on the magma grill (spoiled crew demanded warm mac and cheese) and tried removing the 3/4 full propane canister. Once removed, it was leaking propane, uh oh. No way this thing is staying aboard. I cannot leave it on the grill cuz it is choppy and the grill has to be stowed. After considering various options, I decided littering was the safest one so I simply threw it overboard and settled down to do some reading. A bit later, "Thunk, Thunk, WTF?", I go outside and look down and there's the canister bumping on the hull so I fished it out with the crab net. This time, I really heave it far away and go to bed. Yeah, you guessed right, middle of the night, "Thunk, Thunk", tide had carried it right back to me. Realizing I'm gonna have to get serious about this, I pull out the tide tables and turn on a light eliciting lots of complaints from sleeping crew but I find the tide will be running out in an hour. So, I wait up till then and finally get rid of the canister but never did get back to sleep waiting for the "Thunk, Thunk" again. Why didn't you just slowly open it up down wind, let it empty, then tie it up outside overnight? No wind. Seems like there would be something. None at all? All night? How about tying a weight to it and the boat, then opening the valve... it would sink down current of your boat, bubble along, then you could pull it back in. I thought boaters were all about creative thinking? Yeah, take all night to come up with a scheme to get rid of a little propane gas...... brilliant. Progressive "thinkers".. How much weight do you suppose it would take to sink a half full tank? snerk... -- Team Rowdy Mouse, Banned from the Mall for life! People on the west coast have no idea how glassy still the Gulf of Mexico can get. *When holding a leaking canister aboard a boat, time is critical lest the heavy propane get in your bilge. *Even holding it over the side leaking could be dangerous. *In this case, safety takes precedence over not littering. Let alone the fact that it's heavier than air and will fill a boat cabin in a heartbeat. Wow... you guys call yourselves sailors? How about closing up the boat. Isn't that what you're supposed to do when you gas up? Sheesh... and I don't know diddly about boats. Good Gawd, don't be so anal y'all. *I take the grill off the stern rail because if there is any chop it could fall overboard. *It was a very still night but chop can happen in a few minutes. Getting the canister below surface would not stop it from leaking near my boat and propane could get aboard. *Safety requires you get rid of it ASAP. *Sinking it even "just below the surface" would require several pounds of weight and unless I want to sacrifice some wrenches, I cannot think of anything that would sink it and as I just pointed out, sinking it does not stop it from leaking. *BTW, physics says enough to sink it "just below the surface" is the same as "all the way to the bottom" at least in shallow water. Hazard to navigation? *WHAT? *In a few hours, it will be empty and you think a small propane canister is a hazard to nav? *Be serious. I don't consider it boating, more like cave diving, far too risky, but they sell hundred mile per hour boats. You would hit with four hundred times the impact energy at 100 as you would at 5, with, say, a sailboat. Such a boat might be badly, even fatally, damaged. Less farfetched, I would not care to pay the possible repairs to the sterndrive on my starcraft. Casady If yer worried about a 16 oz canister, are you more worried about the logs floating around out there from the rivers?- Hide quoted text - - Show quoted text - 16 oz canister?? I envisioned a 10 lb propane tank...... the kind we carried on my buddy's Mirage 33. That's the normal size, right? The kind people connect to their stove? That's what I was originally thinking he had, but no, it's some tiny container for little bbq.- Hide quoted text - - Show quoted text - Normal home BBQ's use the 20 lb size. You might see the smaller 10s on small tent trailers or older sailboats. MY god, do any of you ever see accident reports? A 16 oz propane container has enough explosive potential to sink a large boat. You can make quite an explosion by putting a few seconds worth of the propane in a bag and igniting it. YES, I truly do mean the coleman stove size canisters. I also know from experience that a few mg of calcium carbide in water will produce a mega explosion if the acetylene is allowed to accumulate. Propane is almost as dangerous. Clearly none of you has any experience with fuel air explosions. The amount of ignorance exhibited here is astonishing and dangerous. All you have to do is google propane boat accidents to see. Come on. This has nothing to do with the scenario you described... a slow leak from a 16oz container, with no ability to concentrate fumes. You're going to tell us that propane, a heavier than air gas, is going to run back up the current, then back up the sides of your boat.. what 3 feet off the water? Then, get below and go boom. On which planet do you sail.. Jupiter? |
#45
posted to rec.boats
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Propane canister from hell
On Tue, 14 Jun 2011 20:34:25 -0700 (PDT), Frogwatch
wrote: On Jun 14, 11:01*pm, Wayne B wrote: On Tue, 14 Jun 2011 19:26:59 -0700, wrote: But he's out cruising the Bahamas so he's doing something right. Yes, that's laudable, but he also doesn't appear to completely have his sh*t together either. Fixing things with what you have on hand and dealing with the unexpected are all part of international cruising, sometimes a big part. *The big mega yacht cruisers are maintained to a very high degree of reliability but they generally have an engineer in the crew and a big supply of spares on hand to keep things working. * Since we bought the trawler 7 years ago I've learned enough new skills, and acquired the tools, to be a junior tradesman in 3 or 4 different fields. 3% propane in air (by volume) is explosive. Think about that when you think of the size of your bilge and consider that concentration can rise quickly becaus eof the density of the propane. Then consider that when it explodes the gas then takes up 270X the volume of the previous air/propane mixture and you can see it can make a big explosion for a small amount of propane. A small leaking cylinder is a major safety hazard requiring immediate action. Even a few minutes of a leaking cylinder can turn your boat into a bomb. By volume propane is more explosive than gasoline and is explosive over a wider range of concentration so is more dangerous than gasoline vapor. You may not want to admit I am right but if thinking about it keeps you from storing a canister on your boat then I am happy. How is said propane supposed to get in your bilge from below the water and down current? I'm still waiting for your answer. If it's so deadly, why did you worry about it coming back up current after you tossed it? |
#46
posted to rec.boats
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Propane canister from hell
On Tue, 14 Jun 2011 21:38:13 -0700, "Califbill"
wrote: "Frogwatch" wrote in message ... On Jun 14, 11:01 pm, Wayne B wrote: On Tue, 14 Jun 2011 19:26:59 -0700, wrote: But he's out cruising the Bahamas so he's doing something right. Yes, that's laudable, but he also doesn't appear to completely have his sh*t together either. Fixing things with what you have on hand and dealing with the unexpected are all part of international cruising, sometimes a big part. The big mega yacht cruisers are maintained to a very high degree of reliability but they generally have an engineer in the crew and a big supply of spares on hand to keep things working. Since we bought the trawler 7 years ago I've learned enough new skills, and acquired the tools, to be a junior tradesman in 3 or 4 different fields. 3% propane in air (by volume) is explosive. Think about that when you think of the size of your bilge and consider that concentration can rise quickly becaus eof the density of the propane. Then consider that when it explodes the gas then takes up 270X the volume of the previous air/propane mixture and you can see it can make a big explosion for a small amount of propane. A small leaking cylinder is a major safety hazard requiring immediate action. Even a few minutes of a leaking cylinder can turn your boat into a bomb. By volume propane is more explosive than gasoline and is explosive over a wider range of concentration so is more dangerous than gasoline vapor. You may not want to admit I am right but if thinking about it keeps you from storing a canister on your boat then I am happy. Reply: For those who think a 16 oz. container is not much, think how much you can cook on a 2 burner Coleman stove with just one canister. Or how long a propane lantern sheds light for with a single cartridge. And, think about how long it'll last if the valve is open in 10 feet of water.. 5 minutes maybe? I'm still waiting for him to justify his inane response to a simple problem. |
#47
posted to rec.boats
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Propane canister from hell
In article ,
says... On Tue, 14 Jun 2011 19:26:59 -0700, wrote: But he's out cruising the Bahamas so he's doing something right. Yes, that's laudable, but he also doesn't appear to completely have his sh*t together either. Fixing things with what you have on hand and dealing with the unexpected are all part of international cruising, sometimes a big part. The big mega yacht cruisers are maintained to a very high degree of reliability but they generally have an engineer in the crew and a big supply of spares on hand to keep things working. Since we bought the trawler 7 years ago I've learned enough new skills, and acquired the tools, to be a junior tradesman in 3 or 4 different fields. Plum is just trolling. Look how many answers she has gotten just by calling the same name over and over again.... dumb... -- Team Rowdy Mouse, Banned from the Mall for life! |
#48
posted to rec.boats
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Propane canister from hell
On 6/14/11 11:01 PM, Wayne B wrote:
On Tue, 14 Jun 2011 19:26:59 -0700, wrote: But he's out cruising the Bahamas so he's doing something right. Yes, that's laudable, but he also doesn't appear to completely have his sh*t together either. Fixing things with what you have on hand and dealing with the unexpected are all part of international cruising, sometimes a big part. The big mega yacht cruisers are maintained to a very high degree of reliability but they generally have an engineer in the crew and a big supply of spares on hand to keep things working. Since we bought the trawler 7 years ago I've learned enough new skills, and acquired the tools, to be a junior tradesman in 3 or 4 different fields. Spending most of one's time on a boat fixing what lack of proper maintenance caused is fun for some people, I guess. If you are retired and therefore your time isn't valuable, wasting a lot of it trying to get a generator, engine, refrigeration unit, transmission, et cetera, working may be part of "international cruising," as you say, and which means I'd never enjoy being an "international cruiser." Whatever floats your boat. -- Want to discuss recreational boating and fishing in a forum where personal insults are not allowed? http://groups.google.com/group/rec-boating-fishing |
#49
posted to rec.boats
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Propane canister from hell
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#50
posted to rec.boats
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Propane canister from hell
In article ,
says... On 6/14/11 11:01 PM, Wayne B wrote: On Tue, 14 Jun 2011 19:26:59 -0700, wrote: But he's out cruising the Bahamas so he's doing something right. Yes, that's laudable, but he also doesn't appear to completely have his sh*t together either. Fixing things with what you have on hand and dealing with the unexpected are all part of international cruising, sometimes a big part. The big mega yacht cruisers are maintained to a very high degree of reliability but they generally have an engineer in the crew and a big supply of spares on hand to keep things working. Since we bought the trawler 7 years ago I've learned enough new skills, and acquired the tools, to be a junior tradesman in 3 or 4 different fields. Spending most of one's time on a boat fixing what lack of proper maintenance caused is fun for some people, I guess. If you are retired and therefore your time isn't valuable, wasting a lot of it trying to get a generator, engine, refrigeration unit, transmission, et cetera, working may be part of "international cruising," as you say, and which means I'd never enjoy being an "international cruiser." Whatever floats your boat. Who gives a **** what YOU would or would not enjoy? Go back to your own fantastic group. |
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