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#574458 - 10/31/20 03:48 AM Elon's gonna be jealous...  
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Frantically Relaxing Offline
Admiral
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#574461 - 10/31/20 08:11 AM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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captkevin Offline
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going to be interesting to see how all these turn out


2004 Rinker 232
2010 Dodge Ram Crew Cab Laramie 4x4
#574462 - 10/31/20 01:24 PM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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GoFirstClass Offline
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Grand Poobah

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Pasco, WA
That Hummer has a lot of very interesting features. While watching the video, another one on the Hummer came up and that was followed by a video of Tesla's truck. The Tesla truck has a 500 mile range compared to Hummer's 350 but personally I think the Tesla truck is about the ugliest thing I've ever seen.

I just don't see me driving either of them. The Tesla is just too ugly and the Hummer is way too "in your face" with it's military like design, not to mention all those gadgets, cameras and buttons.


"Beachcomber" 1995 Sea Ray 550 Sedan Bridge


Anchor's down......Bottoms Up!
#574463 - 10/31/20 04:51 PM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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Frantically Relaxing Offline
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Well, I'm not a millionaire and just wild guessing about the price, I'm thinking ballpark of around $200k, so I'll never have one.

But this from Google:
Quote
What is the most powerful semi truck engine?
Detroitâ„¢ DD16
The Detroitâ„¢ DD16 truck engine is the biggest, toughest, most powerful engine Detroit has ever produced. With a wide, flat torque curve, and delivering up to 2050 lb/ft and 600 HP, it tackles your hardest jobs while performing with the fuel efficiency and reliability you've come to count on from Detroit.


The 'most powerful semi engine' being "dwarfed" by an electric pickup truck with 66% more HP and um, 560% more torque, 0-60 in 3 seconds... gotta be a fun ride! laugh

#574465 - 10/31/20 08:58 PM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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captkevin Offline
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2004 Rinker 232
2010 Dodge Ram Crew Cab Laramie 4x4
#574466 - 11/01/20 07:58 AM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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jtheile Offline
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Originally Posted by Frantically Relaxing
Well, I'm not a millionaire and just wild guessing about the price, I'm thinking ballpark of around $200k, so I'll never have one.


Pricing is shown if you click on "Reserve Now".

Cheapest model starts at $80k, most expensive starts at $113k.


Joe
Four Winns 225 Sundowner
#574467 - 11/01/20 08:49 AM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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MarkHB Offline
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Admiral

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Norris Lake, TN
Not my style of truck. No buyee here.
Prefer driving my car.

Last edited by MarkHB; 11/01/20 08:54 AM.

24' Monterey Explorer
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Golf!! Waste of a good gun range.
#574469 - 11/01/20 02:29 PM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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Frantically Relaxing Offline
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A friend of mine just spent $77k on a plain old GMC truck recently, so under $100k is surprising. And hey, I'm a Ford guy. wink

I'm just impressed with progress of electric propulsion... consider for a moment that 11,500 ft# of torque electric motor setup stuck into rather large boat...

#574483 - 11/02/20 11:07 AM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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GoFirstClass Offline
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Grand Poobah

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Pasco, WA
FR touched on something I've long wondered about--why don't we have diesel/electric motors in large boats?

Railroads have long used locomotives powered by relatively small diesel engines that develop electric power that is used to turn the wheels. Why can't this same technology be developed where you could have a small diesel generator (my boat has a 15KW) that powers electric motors that turn the props?

One small disadvantage that shouldn't be too tough to overcome is that electric motors develop 100% of their torque instantly. There is no traditional "torque curve" with an electric motor. That's part of the reason the 0-60 times are so low in diesel powered vehicles.


"Beachcomber" 1995 Sea Ray 550 Sedan Bridge


Anchor's down......Bottoms Up!
#574486 - 11/02/20 01:33 PM Re: Elon's gonna be jealous... [Re: GoFirstClass]  
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Silverbullet Offline
Admiral
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Admiral

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Boise, ID
Originally Posted by GoFirstClass
FR touched on something I've long wondered about--why don't we have diesel/electric motors in large boats?

.


Don't we? Some cruise ships I believe are diesel electric I believe.


James
2002 Cobalt 226 VP 8.1GIDP
2007 Chevy 2500HD Crew Cab Duramax
1988 Suburban 3/4 Ton
2000 Subaru Forester


#574487 - 11/02/20 01:33 PM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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captkevin Offline
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Chicago, IL
Would have to imagine reason the technology has not showed up larger boats yet would be due to cost & weight.


2004 Rinker 232
2010 Dodge Ram Crew Cab Laramie 4x4
#574488 - 11/02/20 01:36 PM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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Jack T Offline
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Jack T  Offline
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Southern California
GFC
Good idea. I have mentioned to many people that automobile manufacturers should have used small diesel motors instead of gasoline in hybrid power trains. Diesels run best at their most efficient rpm, which makes them perfect for turning a constant speed battery charger. I would think that diesel/hybrid systems could be a minimum of 30% to 40% more efficient.

I wouldn't call myself a diesel fanatic, but we do own a VW Passat diesel car with a 2.0 turbo engine. In-town, we get around 30 mpg. Highway is typically 45 - 50 mpg. And it is no slouch on the highway.


Have a great day of boating
2012 Monterey 224 FS,
300 HP Volvo Penta with catalytic converters

#574492 - 11/02/20 05:33 PM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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MarkHB Offline
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Admiral

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Norris Lake, TN
Commercial shipping have used diesel electric for decades. 40 years ago I worked on a oil product carrier rebuilding one of the diesels at sea after the overspeed failed. Catastrophic failure. It had 2 diesels and 2 generators.
A know of a few mega yachts that have diesel electric as well.

Quote
One small disadvantage that shouldn't be too tough to overcome is that electric motors develop 100% of their torque instantly.

Use Frequency controlled AC drives for smaller motors and SCR for the larger DC motors.
These control the speed, torque and direction of a motor.

Last edited by MarkHB; 11/02/20 05:45 PM.

24' Monterey Explorer
Honda PWC
http://www.picturetrail.com/markhb

Golf!! Waste of a good gun range.
#574503 - 11/03/20 10:45 AM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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GoFirstClass Offline
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GoFirstClass  Offline
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Grand Poobah

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Pasco, WA
Mark, SCR?


"Beachcomber" 1995 Sea Ray 550 Sedan Bridge


Anchor's down......Bottoms Up!
#574505 - 11/03/20 03:37 PM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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captkevin Offline
Admiral
captkevin  Offline
Admiral

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Chicago, IL
Super Cool Radio??


2004 Rinker 232
2010 Dodge Ram Crew Cab Laramie 4x4
#574506 - 11/03/20 04:08 PM Re: Elon's gonna be jealous... [Re: GoFirstClass]  
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MarkHB Offline
Dressed for dinner
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Admiral

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Norris Lake, TN
Originally Posted by GoFirstClass
Mark, SCR?

Silicon Controlled Rectifier.


24' Monterey Explorer
Honda PWC
http://www.picturetrail.com/markhb

Golf!! Waste of a good gun range.
#574507 - 11/03/20 06:48 PM Re: Elon's gonna be jealous... [Re: Frantically Relaxing]  
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Jack T Offline
Admiral
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Southern California
"Use Frequency controlled AC drives for smaller motors and SCR for the larger DC motors.
These control the speed, torque and direction of a motor."

More here than you would like to know. But it might offer something that can be understood.

https://en.wikipedia.org/wiki/Silicon_controlled_rectifier

Or this one which is a more practical.

https://www.youtube.com/watch?v=BhuR74W1jWc

I think it is safe to assume that the SCR control system is DC rather than AC as in a TRIAC. SCRs and TRIACs basically control the amount of and direction of current through a circuit. However, unlike a resistive control (like old sewing machines), the current to an SCR controlled motor is what is called pulsating Direct Current (DC). This means that the voltage stays at peak, but the pulses are shorter (for slow) or longer (for fast). The longer the pulses, the more current, the harder the motor turns.

By the way, DC controllers can also control the direction of rotation of a motor. I can not recall if frequency controllers can change motor direction.

I'll throw something else into the mix, if you don't mind. Stepper motors, which are used in printer paper handling, or anywhere a precise movement needs to be accomplished. But, you'll have to look those up yourself.

The rest would take a long time to dish out more for understanding, so I won't go there.

It's been a long time since I studied these things. Perhaps someone out there can correct where needed.


Have a great day of boating
2012 Monterey 224 FS,
300 HP Volvo Penta with catalytic converters


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