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$1 billion BMS Ooops...



 
 
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  #11  
Old February 25th 21, 04:50 PM posted to rec.aviation.soaring
kinsell
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Posts: 526
Default $1 billion BMS Ooops...

On 2/25/21 9:01 AM, Hank Nixon wrote:
On Wednesday, February 24, 2021 at 4:42:01 PM UTC-5, wrote:
https://insideevs.com/news/490300/hy...ll-82000-bevs/
Discus amongst yourselves...


The market wants:
Fast charge for convenience
Safety
Long life for low cost of ownership
It is possible to get the send two if one compromises on the first.
Can't have all.
Balancing packs requires time.
Unbalanced packs fail or die sooner.
Reality
UH


Just reading about the Lilium electric air taxi in Forbes, they want to
draw 1.2 megawatts from the batteries for 60 seconds for vertical
takeoff and transition to forward flight.

You can do that sort of thing for 3 seconds in a Tesla for Ludicrous
mode, but 60 seconds can fry the batteries in the air taxi.

Tesla has 4000 small cylindrical cells, with a manifold in contact with
all of them, with pumped liquid cooling to allow high charge and
discharge rates.

Most electric gliders just use big pouch cells, a lot of people just
don't understand the implications of that.

Lilium has raised 400 odd million bucks in funding, looking more like a
pipe dream all the time. Ditto for that Alice thingie, but they've only
burned 200 mil.
Ads
  #12  
Old February 25th 21, 05:32 PM posted to rec.aviation.soaring
Tango Eight
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Posts: 957
Default $1 billion BMS Ooops...

On Thursday, February 25, 2021 at 11:50:46 AM UTC-5, kinsell wrote:
Just reading about the Lilium electric air taxi in Forbes, they want to
draw 1.2 megawatts from the batteries for 60 seconds for vertical
takeoff and transition to forward flight.


1.21 Gigawatts for 60 microseconds and you can go back in time. Or you'll be history. Or something like that.

Now, where did I leave my Segway...

There's no law saying that investors have to be smart.

T8
  #13  
Old February 25th 21, 05:52 PM posted to rec.aviation.soaring
Herbert kilian
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Posts: 45
Default $1 billion BMS Ooops...

On Thursday, February 25, 2021 at 10:50:46 AM UTC-6, kinsell wrote:
On 2/25/21 9:01 AM, Hank Nixon wrote:
On Wednesday, February 24, 2021 at 4:42:01 PM UTC-5, wrote:
https://insideevs.com/news/490300/hy...ll-82000-bevs/
Discus amongst yourselves...


The market wants:
Fast charge for convenience
Safety
Long life for low cost of ownership
It is possible to get the send two if one compromises on the first.
Can't have all.
Balancing packs requires time.
Unbalanced packs fail or die sooner.
Reality
UH

Just reading about the Lilium electric air taxi in Forbes, they want to
draw 1.2 megawatts from the batteries for 60 seconds for vertical
takeoff and transition to forward flight.

You can do that sort of thing for 3 seconds in a Tesla for Ludicrous
mode, but 60 seconds can fry the batteries in the air taxi.

Tesla has 4000 small cylindrical cells, with a manifold in contact with
all of them, with pumped liquid cooling to allow high charge and
discharge rates.

Most electric gliders just use big pouch cells, a lot of people just
don't understand the implications of that.

Lilium has raised 400 odd million bucks in funding, looking more like a
pipe dream all the time. Ditto for that Alice thingie, but they've only
burned 200 mil.

Right on, Dave. I want to see just one of these pipe-dream machines get a standard airworthiness cert. with the OK for carrying passengers, just one. Just like fusion power (and Trump's healthcare plan), it's only a short few years away, I guess.
  #14  
Old February 25th 21, 08:34 PM posted to rec.aviation.soaring
Dan Marotta
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Posts: 4,550
Default $1 billion BMS Ooops...

Oh that is so last decade. I've got an InMotion V11 instead, and the
bruises to prove it!

Dan
5J

On 2/25/21 10:32 AM, Tango Eight wrote:
Now, where did I leave my Segway...

  #15  
Old February 25th 21, 10:38 PM posted to rec.aviation.soaring
Darryl Ramm
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Posts: 2,396
Default $1 billion BMS Ooops...

On Thursday, February 25, 2021 at 12:34:46 PM UTC-8, Dan Marotta wrote:
Oh that is so last decade. I've got an InMotion V11 instead, and the
bruises to prove it!

Dan
5J
On 2/25/21 10:32 AM, Tango Eight wrote:
Now, where did I leave my Segway...


Electric unicycle that's adventurous as one of us old folks.... oh remembers Dan has a gyrocopter... :-)
  #16  
Old February 26th 21, 01:07 AM posted to rec.aviation.soaring
Dave Nadler
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Posts: 1,597
Default $1 billion BMS Ooops...

On 2/24/2021 11:22 PM, Eric Greenwell wrote:
...Electric isn't the coming thing any
mo it's here. The next milestone will be passed when they start
selling more electrics than ICEs.


Eric, you've been drinking the Cool-Aid.
As I did once.
You're bringing your new electric machine to the Seniors, right?
And I do mean THIS year...
  #17  
Old February 26th 21, 01:30 AM posted to rec.aviation.soaring
kinsell
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Posts: 526
Default $1 billion BMS Ooops...

On 2/25/21 6:07 PM, Dave Nadler wrote:
On 2/24/2021 11:22 PM, Eric Greenwell wrote:
...Electric isn't the coming thing any mo it's here. The next
milestone will be passed when they start selling more electrics than
ICEs.


Eric, you've been drinking the Cool-Aid.
As I did once.
You're bringing your new electric machine to the Seniors, right?
And I do mean THIS year...


I noticed one of the other Silent 2 Electro owners was fishing around to
buy an ASH31Mi, a gas guzzling Schleicher product. Grass is always
greener on the other side.

Maybe Eric and that guy could work out a swap, then they'd both have
their dream ships :-)
  #18  
Old February 26th 21, 02:28 AM posted to rec.aviation.soaring
G K
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Posts: 1
Default $1 billion BMS Ooops...


Right on, Dave. I want to see just one of these pipe-dream machines get a standard airworthiness cert. with the OK for carrying passengers, just one.


- I know of one being close. Look up Joby.

Just like fusion power (and Trump's healthcare plan), it's only a short few years away, I guess.

- Kamala has a health plan for you Herb.
Unfortunately, You and Me as white males only get to pay for it, but Hey now!
It's a true realization of Marx&Engel's dreams and it covers the entire Central America.

Best,
GK
  #19  
Old February 26th 21, 04:02 AM posted to rec.aviation.soaring
Eric Greenwell[_4_]
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Posts: 1,892
Default $1 billion BMS Ooops...

Dave Nadler wrote on 2/25/2021 5:07 PM:
On 2/24/2021 11:22 PM, Eric Greenwell wrote:
...Electric isn't the coming thing any mo it's here. The next milestone will be passed
when they start selling more electrics than ICEs.


Eric, you've been drinking the Cool-Aid.
As I did once.
You're bringing your new electric machine to the Seniors, right?
And I do mean THIS year...


Even on the original, pre-Covid schedule, it would not have been ready for the Seniors. And
consider this: my current motorglider, the ASH26E, was delivered a year late by Schleicher, so
by that standard, GP still has until Feb. 2022 to get the new glider to me :^)

There are a lot of FES gliders out there now, and with all the manufacturers offering them,
there will be many more. The more powerful electrics with mast mounted propellers are also
offered by all the manufacturers, and many pilots that think the FES gliders are appealing but
marginal will be ordering these new gliders.

I think you will see a lot of Kool-Aid drinkers behind the Schleicher, Schempp-Hirth, and
Jonkers booths at the SSA convention in 2022, all offering what you saw - and desired - in the
Antares years ago. They won't make the same mistakes that Lange made.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1
  #20  
Old February 26th 21, 04:58 PM posted to rec.aviation.soaring
Dan Marotta
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Posts: 4,550
Default $1 billion BMS Ooops...

Yes, and I've been laid up for the past week after a horrific spill. My
helmet and pads protected skin and skull, but not the ribs from a good
bruise. Now it hurts to laugh (really) and I'm impatiently waiting for
the pain to subside so I can mount up again. Pretty sure I can fly the
gyro without problems, but getting in and out of the thing will hurt...

Dan
5J

On 2/25/21 3:38 PM, Darryl Ramm wrote:
On Thursday, February 25, 2021 at 12:34:46 PM UTC-8, Dan Marotta wrote:
Oh that is so last decade. I've got an InMotion V11 instead, and the
bruises to prove it!

Dan
5J
On 2/25/21 10:32 AM, Tango Eight wrote:
Now, where did I leave my Segway...


Electric unicycle that's adventurous as one of us old folks.... oh remembers Dan has a gyrocopter... :-)

 




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