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Old 03-12-2018, 08:32 PM   #41
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Do the people who profess that diesel is the only way to go on their boats feel the same way on the vehicles they drive?

In most cases, I bet they don't. Why might that be?
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Old 03-12-2018, 08:51 PM   #42
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PS- your initial comments about this situation were good, but now you are making general statements regarding the technical aspects of an area you are not fully versed in. Google lower explosive limit (LEL) of gasoline in an enclosed space and the difference between fire point, flash point, and auto ignition temp of various types of fuels. You are asking about statistics of gas boats that may, or may not be available. I can tell you from 30 years as a Registered Professional Engineer (PE) in Fire Protection that the hazard is greater. I base this from my personal experience working with large scale industrial shore side projects many of which involved flammable liquids, as well as other special hazards. I am going to guess you will dismiss this as well, so I will tap out at this point.
well .....based on my 40 years plus as a pro in boating rescue operations, I have seen plenty of diesel boats catch fire, know why and as an aviation safety pro, understand causal factors in accidents and misused statistics. Plain chemistry explains a lot, but is not often listed as causal factors in accidents.

not so good with industrial stuff, but I know boats....
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Old 03-12-2018, 09:00 PM   #43
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Do the people who profess that diesel is the only way to go on their boats feel the same way on the vehicles they drive?

In most cases, I bet they don't. Why might that be?
Because in cars when gas leaks, it just goes down on the pavement and evaporates.
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Old 03-12-2018, 09:06 PM   #44
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Maybe I missed something, but as I read one account of the incident, it was reported that the boat exploded. That is the difference between gas and diesel boats. If you get gas fumes or have a leak, an explosion is possible. If you have a diesel leak, you generally have a mess to clean up, unless the diesel happens to spray onto a hot turbo. Diesel does not readily catch fire and explode. Apparently in this particular case, the gas boat did explode. I guess that is the point that I have been trying to make. Oh well, if I was not clear, my bad.
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Old 03-12-2018, 09:09 PM   #45
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I have seen way more car fires than boat fires and I have been working on, over or around the water for 40+ years...and drive less than 3000 miles annually for the last 20 years.

please let the myth go.....lack of common sense, lack of proper maintenance, improper operation or materials, a hundred other things cause gas boats to catch fire or explode.

We all know the characteristics of both fuels...BUT....

Just having gas aboard or using it as fuel is NOT the real problem.
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Old 03-12-2018, 09:41 PM   #46
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Ok, you kept bringing up stats, how many cars are there versus how many boats. I didnít bring up cars someone else did. Apples and oranges. I never said or implied that just having gas onboard made a boat dangerous. I have owned way more gas powered boats than diesel powered boats. I said gas was more easily ignited than diesel. If you can not accept that as a fact then we can not carry on a discussion. Sorry.
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Old 03-12-2018, 10:29 PM   #47
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Do the people who profess that diesel is the only way to go on their boats feel the same way on the vehicles they drive?

In most cases, I bet they don't. Why might that be?
I do,but it`s more engine performance, heaps of torque, than fire risk. But as you raise it, I did experience a Mazda Rotary gas fuel fire.
And I was involved in the ugly aftermath of a gas powered boat explosion.
I far prefer diesel.
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Old 03-13-2018, 06:00 AM   #48
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pretty much every post since #29 of mine, I agreed gas could be more dangerous because of its characteristics....

but using it as a fuel doesnt make it dangerous by default.... which was my point, and those that talk numbers (stats) need to put them in perspective.

maybe it wasnt me that was missing a point....

just trying to be fair and keep TFers from walking away from gas boats just because they are gas.
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Old 03-13-2018, 06:26 AM   #49
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Greetings,
Until such time as a thorough investigation is completed and reported on, I'm holding off on speculating what the actual cause of this fire was. Since the thread has drifted onto a gas vs. diesel issue...

As Mr. ps stated (post #48) "... fuel doesnt make it dangerous by default.". Our "big" boat is diesel. Our "small" boat is gas. I feel no less safe in the gas boat than the diesel. I will admit to being much more aware of the potential dangers inherent in the gas boat and as a result tend to be extremely vigilant regarding ANY gas odors and fuel system integrity. Is it any more work to be so? A bit, but not really any inconvenience.

Perhaps the fact that during my working career the main "tool" used during completion of my tasks was FIRE, fueled by flammable gases (propane, CNG, hydrogen, acetylene) and use of flammable solvents (hydrocarbons, alcohols etc.) I'm probably significantly more anal than the average boater regarding the danger. No oily rags or detritus anywhere aboard (spontaneous combustion). Very regular inspections of ER spaces. Strict refueling practices. Proper ventilation. etc.
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Old 03-13-2018, 06:52 PM   #50
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just a reminder, most boat fires srart from electrical issues, not fuel related.

once a fire starts, doesnt matter if gas or diesel.

https://www.boatus.com/magazine/2015...boat-fires.asp
Thanks for the link, interesting article!

Once a fire starts, there is a lot of combustible material on a boat, aside from the fuels.

Jim
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Old 03-13-2018, 08:33 PM   #51
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Thanks for the link, interesting article!

Once a fire starts, there is a lot of combustible material on a boat, aside from the fuels.

Jim
Thank you... a big chunk of my point...
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Old 03-15-2018, 05:21 PM   #52
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After my own personal experience - I stay away from gas boats. The closer is 10 slips away from me. Even the experience one are making mistakes and other boats are lost.
Gas boats are dangerous.
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Old 03-15-2018, 05:29 PM   #53
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yep, just heard all marinas are banning them....and insurance companies want nothing to do with them...and businesses are converting fleets to diesel... yep, big changes ahead....
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Old 03-15-2018, 06:04 PM   #54
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yep, just heard all marinas are banning them....and insurance companies want nothing to do with them...and businesses are converting fleets to diesel... yep, big changes ahead....
And no more boating allowed on inland lakes as the lake I boated on all my life until 2012 doesn't even have any diesel sold on the lake.

Also the same senator who is presenting a bill saying it's illegal to put dogs in the overhead bin is presenting one to phase out not only gas car engines but also electric as he just read that most fires in homes are electric so he figured that would cause car fires too.
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Old 03-15-2018, 06:32 PM   #55
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Everyone will agree that gasoline is more flammable than diesel fuel, so given a perfect storm of events ( fuel leak, poor ventilation, +spark) a diesel boat will fare better than a gas boat. HOWEVER...the incidence rate of that occuring is so small as to be insignificant.

Sure, most boat fires are on gas powered boats, but the overwhelming majority of boats are gas powered, so unless you have a lot of data, and a lot of time, that statistic is meaningless.

If you have some common sense, maintain your boat, and use good judgement there is no reason to fear a gas boat. A gas boat operated by an idiot and poorly maintained might be dangerous...but it is the idiocy and the negligence that are creating the danger, not the fuel.
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Old 03-15-2018, 06:50 PM   #56
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The worst marina fires I have seen first hand involved nothing but diesel powered boats. The most disastrous being Portland 2006 February when about 15 large yachts went up.
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Old 03-15-2018, 07:23 PM   #57
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...If you have some common sense, maintain your boat, and use good judgement there is no reason to fear a gas boat. A gas boat operated by an idiot and poorly maintained might be dangerous...but it is the idiocy and the negligence that are creating the danger, not the fuel.
There is a gas boat 3 slips away. Recently it docked, we helped as is our marina custom,I could smell, strongly, unburned gasoline. Possibly unburned fuel on the water, possibly something else. I mentioned it to the owner, suggesting it needed checking.
We are subject to the maintenance diligence standards of others. As are others in relation to our own standards. But, IMO,gasoline poses a special risk,calling for extra vigilance.
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Old 03-16-2018, 05:43 AM   #58
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if we start talking "other boats" at the marina..... then fuel is important to be alert for, but your biggest risk from neighboring bost in the US is electrical fires.

Then.....even the exlosion hazard in my experience comes from propane, not engine fuel.
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Old 03-16-2018, 06:42 AM   #59
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just a reminder, most boat fires srart from electrical issues, not fuel related.

once a fire starts, doesnt matter if gas or diesel.

https://www.boatus.com/magazine/2015...boat-fires.asp
While this "explosion" will likely wind up in the "gasoline" blame category, in the USCG stats, the reality is that it is most likely an electrical issue on the ignition side....

Gas boats need IP rated fuses, chargers, blowers, switches, starters, alternators etc. etc. etc., and very few do.

I can't even begin to count the sheer number of non-IP rated components including, chargers, fuses, non-marine starters, alternators etc. that I see in gas engine compartments. When I query the owner I often get; "I don't believe in that "marine" mark-up BS."..

Well, when you're in the hospital, looking like shish-kabob, we'll talk again then......

Unless the guy was smoking a butt, I would guess the boat, electrically speaking, would not have met the standards for ignition protection.... Chicken/egg or electrical / gas....??

We should keep in mind that there are hundreds of thousands more gasoline powered boats out there than diesel, yet electrical fires are still the #1 cause of fires on boats. I my opinion the stats for electrically caused fires are actually under stated because many incidents, perhaps even this one, started or get ignited with an improper electrical system.

One of the worst marina fires in the US is believed to be have been started by a shore power inlet, with a design, that dates back to 1938..........
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Old 03-16-2018, 08:39 AM   #60
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Statement from Last Mango. I do not know anyone involved, a good friend from Fort Pierce sent this to me.

Close call for the Last Mango this evening. The ĎGypsy Toursí boat, powered by a 350hp gasoline engine and docks on our north side, pulled into her slip today around 5:300PM and proceeded to blow up and then burn to the waterline. 1st Mate Joey Mariano and Capt Rich of Fins Sportfishing saved the Mango from certain destruction by getting her out of her slip immediately after the Gypsy exploded. Their actions were at great risk to themselves and they are the heroes of the day!!!
Our port side windows melted and Iím not sure how our brand new Awl Grip paint job faired but all in all we lucked out.
Joeys face was slightly burned as he slipped off the dock lines on the fire side. The Captain of Gypsy Tours in hospital! Passengers of Gypsy Tours were still on board and explosion knocked at least two in the water. Before moving the Mango to safety and while the Gypsy was engulfed in flames, 1st Joey Mariano saved another passenger who trapped on the bow of the Gypsy by somehow hauling him to safety across a substantial space.
The Viking boat in the slip on the other side of Gypsy was not moved and sustained significant damage as #firefighters contained the blaze. If not for them the whole dock could have easily gone up in flames one boat at a time.
I do know Capt. Tris of the Last Mango, and I am acquainted with Capt. Rich of Fins. They are the two most successful charter boats at FPCM. For Rich to run over to save his chief competitors boat shows the quality of person he is. As neither of the captains are given to BS, I will take Capt. Rich's word about the mate rescuing one from the burning boat. There is a short finger pier between the two boats. The Gypsy Tours boat is probably around 30'. This would make it possible to snatch someone over to the end of the pier.

How do I know. I don't, but the Gypsy Tours boat is in Moonstruck's old slip before moving to the new floating docks. However, I do know both the captains involved to be high caliber people.
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