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-   -   Seven Marine no more :( (https://www.offshoreonly.com/forums/general-boating-discussion/369232-seven-marine-no-more.html)

iliveonanisland 11-08-2020 09:30 AM


Originally Posted by Interceptor (Post 4764823)
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.

Stationary applications like charging batteries lol

iliveonanisland 11-08-2020 09:32 AM


Originally Posted by Keith Atlanta (Post 4764828)
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.

I think it would still work. So you add 25,000 lbs to a 41 apache all you would have to do is make the lifting strakes 16” wide.

chattviper 11-08-2020 11:00 AM


Originally Posted by Matt Trulio (Post 4764743)
Well said and explained. Check this out (I'm sure you already have), https://nautique.com/models/super-ai...gs22e/overview.


You beat me to that link. Electric boats are coming...

Jupiter Sunsation 11-08-2020 11:07 AM


Originally Posted by Matt Trulio (Post 4764743)
Well said and explained. Check this out (I'm sure you already have), https://nautique.com/models/super-ai...gs22e/overview.

From that link: 22 foot ski boat
MSRP* STARTING AT
$292,711


WATERSPORTS USE TIME
2-3 Hours

iliveonanisland 11-08-2020 11:35 AM


Originally Posted by Jupiter Sunsation (Post 4764846)
From that link: 22 foot ski boat
MSRP* STARTING AT
$292,711
WATERSPORTS USE TIME
2-3 Hours

holy crap that’s a lot of coin for a 22

Wildman_grafix 11-08-2020 04:35 PM

The point is the tech will get better and the cost will come down.

people used to laugh at electric cars, pretty much every major manufacturer makes one now.

i look forward to more electric, as demand for gas drops so will prices!

iliveonanisland 11-08-2020 06:25 PM


Originally Posted by Wildman_grafix (Post 4764871)
The point is the tech will get better and the cost will come down.

people used to laugh at electric cars, pretty much every major manufacturer makes one now.

i look forward to more electric, as demand for gas drops so will prices!

I don’t see gas prices going down with the new green deal bs

thirdchildhood 11-08-2020 07:41 PM


Originally Posted by Keith Atlanta (Post 4764829)
....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

If you want to go there I'll take the sound of jet fuel guzzling turbines over either!


flat rate 11-08-2020 08:09 PM

It’s going to be a long winter if we are already debating having electric boats !

PremierPOWER 11-09-2020 06:17 PM


Originally Posted by Jupiter Sunsation (Post 4764846)
From that link: 22 foot ski boat
MSRP* STARTING AT
$292,711
WATERSPORTS USE TIME
2-3 Hours


This is insane. Who on earth is going to spend $300k on a wakeboard boat that can only be used 2-3 hours at a time? For that kind of money, get a Pavati

JPEROG 11-09-2020 08:13 PM

They are built in Orlando and are shipping them to Europe. Those people have no choice. They were pushed 20 years ago the same way we are being pushed today.

Joe

iliveonanisland 11-10-2020 11:47 AM


Originally Posted by flat rate (Post 4764913)
It’s going to be a long winter if we are already debating having electric boats !

Lmao

Biff 11-10-2020 01:20 PM

What hull is that with the the 6 OB's on it? Magnum?

iliveonanisland 11-10-2020 01:23 PM


Originally Posted by Biff (Post 4765147)
What hull is that with the the 6 OB's on it? Magnum?

If it’s wide enough for six big outboards they should have put a pair of hi po diesels in it. Imo

LivinVIP 11-10-2020 01:24 PM


Originally Posted by Biff (Post 4765147)
What hull is that with the the 6 OB's on it? Magnum?

Yes !

plavutka 11-11-2020 03:09 AM


Originally Posted by JPEROG (Post 4765042)
They are built in Orlando and are shipping them to Europe. Those people have no choice. They were pushed 20 years ago the same way we are being pushed today.

Joe

I am from EU and hear this first time. Only in few small lakes we have no chance, must be electric drive, but normally it is the same like in other world.
Technology for 1500 kwh storage in accu small enough to fit in 35 ft fast boat will not be available at least one decade, probably much longer and less energy storage is usseles for ocean boating.

The real choice it is betwen gassoline, diesel, alcohol and hydrogen. Forget electric, this is politicall fuel and far from ecologycally solution!
From where electric come and what is total efficiency of powerplant?:cool-smiley-011:

thirdchildhood 11-11-2020 06:21 AM

If only we could break down water to an explosive mix of hydrogen and oxygen. But then again, would we really want to permanently deplete our water ....

techman 11-11-2020 09:41 AM

Did Volvo want to have an outboard in their lineup? I can't imagine what possible scenario they had in mind that would make that acquisition profitable.

Since Seven Marine went through the expense/engineering of marinizing a LSx and all it's associated controls/electrics, maybe it would be an easier path to convert them to I/O's? If gear cases were blowing up maybe the power/weight is more aligned with a stern drive application.

JaayTeee 11-11-2020 01:13 PM


Originally Posted by techman (Post 4765254)
Did Volvo want to have an outboard in their lineup? I can't imagine what possible scenario they had in mind that would make that acquisition profitable.

Since Seven Marine went through the expense/engineering of marinizing a LSx and all it's associated controls/electrics, maybe it would be an easier path to convert them to I/O's? If gear cases were blowing up maybe the power/weight is more aligned with a stern drive application.

I doubt even Mercury is selling very many stern drive power packages now , they( Volvo) took a swing at it back when the market was hot, no need to try it again now when it isn’t

Wildman_grafix 11-11-2020 01:23 PM


Originally Posted by JaayTeee (Post 4765298)
I doubt even Mercury is selling very many stern drive power packages now , they( Volvo) took a swing at it back when the market was hot, no need to try it again now when it isn’t


I think one reason mercury doesn't sell much stern drive is they have not put any real R&D into it. They have decided to focus on the Outboard market.

There I/O stuff is all pretty old tech really, old converted auto based motors and not even using the latest of those. (The OHC motors being a exception, 860-1500HP).

resurrected 11-11-2020 03:03 PM


Originally Posted by thirdchildhood (Post 4765233)
If only we could break down water to an explosive mix of hydrogen and oxygen. But then again, would we really want to permanently deplete our water ....

Actually it's pretty easy to break it down, just a couple of anodes and DC current. Voila hydrogen generator, I haven't done it since high school and I assume it nets negative power through the process. Then when you burn it, the by product is water.

Wharf Rat 1 11-11-2020 06:25 PM

I was in Charlevoix, Michigan over the summer and noticed most big C.C. had numerous Seven Marine engines on the back. Must be a big dealer there. I saw a long Nor-Tech with 6 hanging off the back. A pretty penny for that one!

Wildman_grafix 11-11-2020 08:41 PM


Originally Posted by resurrected (Post 4765321)
Actually it's pretty easy to break it down, just a couple of anodes and DC current. Voila hydrogen generator, I haven't done it since high school and I assume it nets negative power through the process. Then when you burn it, the by product is water.

LOL,

We did that in a middle school science class, I remember the teacher filled a balloon up with the Hydrogen. He wrote Hindenburg on it and "flew" it over a Bunsen burner,,,,,,,,,,,,, you know recreated the event!

Nothing personel 353 11-11-2020 08:53 PM

Wow electric power coming at us fast! Water electric I'll pass! Almost bought an electric Harley but snapped out of it :hitfan: I'll be a caveman and stick with big block power:boat::food-smiley-007:

RBeyer 11-16-2020 11:14 AM

There may come a time when this is a practical application. With the voltage put out i would not want that near water. Additionally EV cars rely heavily on coasting and charging via braking to charge. You have neither in a boat.

ThisIsLivin 11-16-2020 12:17 PM

I think I am going to start recording the sound from my wonderful big block so my grand kids can play it when they drive around in their electric boats!


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