Comments by "Gaza is not Amalek" (@Ass_of_Amalek) on "Aircraft of the future: The race for electric aviation | DW News" video.

there already are commercially available electric tractors
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2:14 DHL has committed to make operations carbon-neutral by 2050? that's so weak, they may as well have committed to never make operations carbon-neutral!
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congrats
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this airplane is at the very small end of the passenger plane size range. increasing the size of an object including a plane or ship increases surface area as a square function of the length increase, but increases volume and mass as a cube function of the length increase. therefor larger planes have less surface area per unit of volume or unit of mass, and having less surface area reduces their drag and increases efficiency of flight and increases the range achievable with alimited energy supply. they're developing small planes first because those are cheaper to build and tinker with, larger planes built the same way would already have significantly longer ranges. whether these really are reasonable vehicles to use for passenger or cargo transport given the big environmental impact of the mining of battery materials and that the batteries may especially in aviation have a very short lifespan and may ultimately not be recycled is another question. there also is the inherent inefficiency of lifting a lot of battery weight with every flight that will always leave battery-electric planes with a smaller carrying capacity in proportion to their maximum takeoff weight, and combustion planes often limit the amount of fuel carried to the minimum plus safety margin needed for a given flight and can land on shorter runways after using up most of their fuel, whereas a battery plane is likely toalways fly with its complete battery set even on the shortest routes. and there is the matter of fire danger - although that is an issue mostly occurring in cheaply made lithium battery products, at least for the next ten years, lithium battery planes will certainly be less safe to fly than combustion planes not made by boeing.
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uhm.... are you proposing a wind turbine to charge the battery from the plane's forward movement through the air? are you actually doing that? 😳
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@DemPilafian that's the same thing.
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that probably also is a viable option,but the issues are mostly the large storage volume, difficulty of containment, and explosion risk in case of leaks. hydrogen has an extraordinarily large range of mixing ratios with air within which the mix is explosive, and because H2 molecules are so extremely tiny, pressurized hydrogen much moreeasily escapes through the smallest gaps and through some solid materials, so hydrogen is much more difficult to contain than methane and such and much more likely to explode if it does leak (and likely to explode more forcefully, as the ignition propagates very fast).
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if they wanted to poison the air you breathe, they would do it at ground level.
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