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Seven Marine no more :(

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Old 11-07-2020 | 10:25 AM
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What are they going to do in California, they have rolling black outs now, they can't provide enough electricity to power homes. How are you going to have enough electricity to charge your car, boat and keep the lights on in your house or business?
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Old 11-07-2020 | 10:53 AM
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Originally Posted by Skater30
trains have been powered by electric motors for decades now.
Electric motors powered by generators run by giant diesel engines!
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Old 11-07-2020 | 01:32 PM
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^ Exactly! A bit off topic here but behind those electric motors is a big fuel chugging generator. And that spent fuel from those nuclear reactors is easy to dispose of...

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Old 11-07-2020 | 04:16 PM
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Originally Posted by thirdchildhood
"In the future, the world will be powered by a combination of battery-electric and fuel-cell electric vehicles ... "

Good luck with that theory. We are slowly transitioning to more practical and fun to drive electric cars but are a long ways from practical, let alone fast, electric boats. Will we have electric jets too? Large cargo ships could go nuclear like warships and submarines have. Anyway it is sad to see Seven Marine go the way of the Ilmor V-10.
aoc is building a solar powered 747 in the vacant lot next to her house. She used all China parts. What’s the worst that could happen
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Old 11-08-2020 | 05:58 AM
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Originally Posted by Skater30
I completely agree with your statement. Horsepower from electric motors is not the problem currently, it is only the energy density of the batteries - which is currently only about 1/10th that of gasoline. Once the battery technology advances and the energy density approaches that of gasoline, we will see electric everything - cars, boats and even airplanes. I do hope that everybody goes online and educates themselves to the fact that our ships and trains have been powered by electric motors for decades now, with either diesel motors (trains, commercial ships) or nuclear reactors (military ships, submarines) providing the source of energy to create the electricity to power the electric motors. The first flight of a commercial aircraft has already occurred last year when a converted De Havilland Beaver seaplane with a 750hp electric motor/battery system developed by MagniX flew a short route up in Vancouver, Canada. All electric is coming guys, it's just a matter of time.
Not to split hairs but...no, nuclear powered ships don't use electric motors to drive the ship...they use the reactor to generate steam to power steam turbines...that drive the ship through a gearbox, not via electric motors.

I think we'll see more vehicles powered by electricity in the future, but NEVER to boats like ours...ain't happening, at least in our lifetimes, not without some unforeseen technology 'breakthrough', anyways...and still, at least 25+ years off. For the foreseeable future, nothing beats fossil fuels.

Last edited by bajaman; 11-08-2020 at 06:04 AM.
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Old 11-08-2020 | 08:25 AM
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Originally Posted by bajaman
Not to split hairs but...no, nuclear powered ships don't use electric motors to drive the ship...they use the reactor to generate steam to power steam turbines...that drive the ship through a gearbox, not via electric motors.

I think we'll see more vehicles powered by electricity in the future, but NEVER to boats like ours...ain't happening, at least in our lifetimes, not without some unforeseen technology 'breakthrough', anyways...and still, at least 25+ years off. For the foreseeable future, nothing beats fossil fuels.
I predict a lot of boats hitting the market soon as between the tax hikes and war on fossil fuels. A lot of people won’t be able to afford recreational performance boating, let alone refitting their rig with electric motors.
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Old 11-08-2020 | 09:05 AM
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Eventually diesel may be the remaining fuel source for internal combustion engines as land based transportation migrates to electric. Diesel would still be in use for some big stationary applications.

Last edited by Interceptor; 11-08-2020 at 09:07 AM.
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Old 11-08-2020 | 09:06 AM
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Originally Posted by bajaman
Not to split hairs but...no, nuclear powered ships don't use electric motors to drive the ship...they use the reactor to generate steam to power steam turbines...that drive the ship through a gearbox, not via electric motors.

I think we'll see more vehicles powered by electricity in the future, but NEVER to boats like ours...ain't happening, at least in our lifetimes, not without some unforeseen technology 'breakthrough', anyways...and still, at least 25+ years off. For the foreseeable future, nothing beats fossil fuels.

You may want to do some research before posting..........
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Old 11-08-2020 | 09:12 AM
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Originally Posted by Skater30
I completely agree with your statement. Horsepower from electric motors is not the problem currently, it is only the energy density of the batteries - which is currently only about 1/10th that of gasoline. Once the battery technology advances and the energy density approaches that of gasoline, we will see electric everything - cars, boats and even airplanes. I do hope that everybody goes online and educates themselves to the fact that our ships and trains have been powered by electric motors for decades now, with either diesel motors (trains, commercial ships) or nuclear reactors (military ships, submarines) providing the source of energy to create the electricity to power the electric motors. The first flight of a commercial aircraft has already occurred last year when a converted De Havilland Beaver seaplane with a 750hp electric motor/battery system developed by MagniX flew a short route up in Vancouver, Canada. All electric is coming guys, it's just a matter of time.
Yeah, you are right. Its coming but in heavy torque applications, the tesla tractor-trailer had 25,000 pounds of batteries. So yeah, its coming for cruisers but for performance boats we are still many years off. FWIW, a good friend of mine went to Georgia Tech and his degree is in advanced power systems. All of this can be done, but its not a question of if, its a question of cost. For comparison, over the last 3 years there have been a lot of speculation of people cheating in high level cycling, both Tour de France and Olympic Mountain bike style stuff. I was laughing and talking to him about this with an attitude of like yeah right - the battery would be huge. He laughed at me and said dude I have motors with enough torque that you could put in the hub and batties that are the size of a few C batties and could give him enough of an advantage that would last for 6 hours and enough power to win the race. So, the technology is there, its the production costs.... which will eventually come down.
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Old 11-08-2020 | 09:16 AM
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....another thought.

Its been hard enough for me to mentally adjust to the sound from a 100mph boat that had 1075's to a 100+ mph cat that has much quieter outboards. Now ya'll want to make them totally silent. SMH

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