Electric Airplanes!

Discussion in 'Other EVs' started by Domenick, Nov 21, 2017.

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  1. Well, I don't think hydrogen is the answer for all EVs. and I agree the lack of infrastructure is a big problem. The main infrastructure (Grid) already exists for BEVs, and I think, too, is the best solution for cars and other light vehicles on the road.

    However, the energy density of hydrogen fuel cells is much better than current BEV technology, so could lend itself better for large transport vehicles (trains, semis, etc), incl aircraft (which are very weight sensitive). But it is all new at this point, so will have to see where it goes. I like that we don't put all our eggs in one basket, though.
     
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  3. More progress on the Harbour Air Electric Beaver floatplanes. They are now moving forward with certification.
    https://www.avweb.com/aviation-news/solar-impulse-lead-partners-with-electric-seaplane-venture/?MailingID=599&utm_source=ActiveCampaign&utm_medium=email&utm_content=Air+Force+Exodus%2C+Bridge+Stunt+Fallout&utm_campaign=Air+Force+Exodus%2C+Bridge+Stunt+Fallout-Monday%2C+April+26%2C+2021
     
  4. Domenick

    Domenick Administrator Staff Member

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  6. Interesting article. There are certainly a lot of new aerodynamic designs lately, some of which seem to go against conventional thinking. But when it comes to aircraft development, the testing doesn't always support the theory or exposes other consequential flaws that could not have been foreseen. And when human life is at risk, can't be too careful.

    Having said that, significant progress is happening, and will interesting to see some of these new designs move from concept to final production and mass implementation.
     
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  8. PawelM

    PawelM New Member

    Just interesting what software they use.
     
  9. This is a significant development. It is a serial hybrid and not a parallel hybrid which is the way to go. I am skeptical about their 30% claim though. Probably they are counting on regen, otherwise where does the savings come from? In fact it can be less efficient due to electrical losses. Anyone can tell us that regen does not get you 30 % savings. They can have a smaller turbo engine as climbing can be achieved with batteries. But that is extra weight. In terms of fuel consumption reduction, this will be a failure, unless battery technology improves from today's 250 Wh/kg to 400 Wh/kg.
     
  10. Hydrogen fuel cells are only 50% efficient and require lots of costly maintenance. Hydrogen is DoA IMO. Future batteries will be the last nail in the coffin.
     

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