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All electric airplane designs today appear to be frauds (like all crypto currency projects), because no one airplane project answers the most important problem:

All electric airplane designs today appear to be frauds (like all crypto currency projects), because no one airplane project answers the most important problem: battery power density.

6stringmerc 4y ago
Nope there’s already one flying in England testing for commercial service and its twin is about to get FAA clearance to start testing here as well. It’s an electric aircraft with a hydrogen fuel cell system.
- zac23or 4y ago
  > hydrogen fuel cell system. It's not a battery.
  - 6stringmerc 4y ago
    Would you consider graphene based next generation power storage a battery or something different? I'm pretty keen on the RC hobby realm and the up and downstream innovations for batteries is still on the uptick I believe. I believe there are some Experimental (by FAA standards) battery based planes flying today, which again, simply is proof of concept to counter the doom and gloom potential outcome. For what it's worth, I felt the same way for years - batteries will never work - but now I'm not so sure.
J5892 4y ago
My crypto project is powered by D batteries. I don't know how dense they are, but they're pretty heavy.
- LightG 4y ago
  Your batteries are my ... my density ... I mean, I mean, my destiny ... (someone will get this).
  - leveraction 4y ago
    Back to the Future?
  - hef19898 4y ago
    Great Scott! 1.21 GW, what was I thinking????
kybernetikos 4y ago
What level of detail do you want? https://lilium.com/newsroom-detail/technology-behind-the-lilium-jet https://lilium.com/newsroom-detail/technology-behind-the-lil... has some discussion of it in Item 3 as does https://lilium.com/newsroom-detail/liliums-battery-strategy https://lilium.com/newsroom-detail/liliums-battery-strategy
- zac23or 4y ago
  It's nothing, it's a Pr text.
  - kybernetikos 4y ago
    I don't disagree, but what do you expect to be shared with the public? They've acquired battery IP, they show the power charts, they talk about the difficulties of discharge at low states of charge. Their whole design is focused on short distances with very short time spent in hover. They may not be correct (and they seem to have assumed at least 5 more years of basic improvements) but the suggestion that they haven't addressed the problem at all is just wrong.
    - zac23or 4y ago
      > and they seem to have assumed at least 5 more years of basic improvements) but the suggestion that they haven't addressed the problem at all is just wrong. In five years, the problem may no longer exist. Perhaps the plan is to wait for battery technology to advance...
karamanolev 4y ago
Kind of tongue-in-cheek, but I want to know what's the project that scores the most fraud points, while still being serious - blockchain, electric-powered, self-driving/flying airplane/car/submersible hybrid sold as NFTs?
- yencabulator 4y ago
  ... with quantum 5G edge cloud AI self-driving.
johndevor 4y ago
Talyn does: https://www.talyn.com/ https://www.talyn.com/
nharada 4y ago
I feel like they make it pretty clear the design constraints (and thus business constraints) they're operating under. They have a working prototype. I think this project is incredibly risky, especially from a regulatory and safety perspective, but there's nothing in the laws of physics and our current battery understanding preventing this plane from existing. You're not flying NY to LA in this thing and that's fine.
ilrwbwrkhv 4y ago
Yup this is the new meta for pushing dirty money through the VC system.
nradov 4y ago
That's not quite fair. The Pipistrel Alpha Electro trainer aircraft is FAA certified and in active use by flight schools today. Endurance is very limited due to low battery power density, but it is adequate for basic flight training. https://www.pipistrel-usa.com/alpha-electro/ https://www.pipistrel-usa.com/alpha-electro/ But these other eVTOL designs are probably just too early. It will take several more generations of battery improvements until they become economically viable.

All electric airplane designs today appear to be frauds (like all crypto currency projects), because no one airplane project answers the most important problem: battery power density.

6stringmerc 4y ago

Nope there’s already one flying in England testing for commercial service and its twin is about to get FAA clearance to start testing here as well. It’s an electric aircraft with a hydrogen fuel cell system.

zac23or 4y ago
> hydrogen fuel cell system. It's not a battery.
- 6stringmerc 4y ago
  Would you consider graphene based next generation power storage a battery or something different? I'm pretty keen on the RC hobby realm and the up and downstream innovations for batteries is still on the uptick I believe. I believe there are some Experimental (by FAA standards) battery based planes flying today, which again, simply is proof of concept to counter the doom and gloom potential outcome. For what it's worth, I felt the same way for years - batteries will never work - but now I'm not so sure.

J5892 4y ago

My crypto project is powered by D batteries. I don't know how dense they are, but they're pretty heavy.

LightG 4y ago
Your batteries are my ... my density ... I mean, I mean, my destiny ... (someone will get this).
- leveraction 4y ago
  Back to the Future?
- hef19898 4y ago
  Great Scott! 1.21 GW, what was I thinking????

kybernetikos 4y ago

What level of detail do you want? https://lilium.com/newsroom-detail/technology-behind-the-lilium-jet https://lilium.com/newsroom-detail/technology-behind-the-lil... has some discussion of it in Item 3 as does https://lilium.com/newsroom-detail/liliums-battery-strategy https://lilium.com/newsroom-detail/liliums-battery-strategy

zac23or 4y ago
It's nothing, it's a Pr text.
- kybernetikos 4y ago
  I don't disagree, but what do you expect to be shared with the public? They've acquired battery IP, they show the power charts, they talk about the difficulties of discharge at low states of charge. Their whole design is focused on short distances with very short time spent in hover. They may not be correct (and they seem to have assumed at least 5 more years of basic improvements) but the suggestion that they haven't addressed the problem at all is just wrong.
  - zac23or 4y ago
    > and they seem to have assumed at least 5 more years of basic improvements) but the suggestion that they haven't addressed the problem at all is just wrong. In five years, the problem may no longer exist. Perhaps the plan is to wait for battery technology to advance...

karamanolev 4y ago

Kind of tongue-in-cheek, but I want to know what's the project that scores the most fraud points, while still being serious - blockchain, electric-powered, self-driving/flying airplane/car/submersible hybrid sold as NFTs?

yencabulator 4y ago
... with quantum 5G edge cloud AI self-driving.

johndevor 4y ago

Talyn does: https://www.talyn.com/ https://www.talyn.com/

nharada 4y ago

I feel like they make it pretty clear the design constraints (and thus business constraints) they're operating under. They have a working prototype. I think this project is incredibly risky, especially from a regulatory and safety perspective, but there's nothing in the laws of physics and our current battery understanding preventing this plane from existing. You're not flying NY to LA in this thing and that's fine.

ilrwbwrkhv 4y ago

Yup this is the new meta for pushing dirty money through the VC system.

nradov 4y ago

That's not quite fair. The Pipistrel Alpha Electro trainer aircraft is FAA certified and in active use by flight schools today. Endurance is very limited due to low battery power density, but it is adequate for basic flight training. https://www.pipistrel-usa.com/alpha-electro/ https://www.pipistrel-usa.com/alpha-electro/ But these other eVTOL designs are probably just too early. It will take several more generations of battery improvements until they become economically viable.