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Electric aircraft have demonstrated flying for over an hour, and several hours is feasible. No point in these compressed hydrogen things for airplanes. The wei
by Robotbeat 4y ago
Electric aircraft have demonstrated flying for over an hour, and several hours is feasible.
No point in these compressed hydrogen things for airplanes. The weight is just too high. Hydrogen aviation only makes sense with cryogenic hydrogen storage IMHo, and only for very long duration
- gamblor956 4y agoAnd yet aviation technology professionals who presumably know more than either of us have decided that hydrogen is the future for general commercial aviation, not electric craft.
- Robotbeat 4y agoI am an aviation technology professional.
- gamblor956 4y agoClearly not, if you believe that lithium-based batteries have anywhere near the energy capacity for large aircraft.
- Dylan16807 4y ago> Electric aircraft have demonstrated flying for over an hour, and several hours is feasible. With massive downsides. Sure, liquid hydrogen probably makes a lot more sense for a plane than these things. But I don't think "only for very long duration" is true at all.
- jazzyjackson 4y ago> The weight is just too high. did OP not just point to a 4x increase in energy density?
- Robotbeat 4y agoThis is not a 4x increase in energy density. It’s functionally the same as high end lithium ion.