Comments by "" (@manofsan) on "OBF" channel.

Electric fan engines have already been demonstrated. https://www.youtube.com/watch?v=lavvVN7fSEU The problem is that batteries cannot match chemical fuel in energy density, and are a very poor substitute. You might be able to burn hydrogen for a hydrogen turbofan. https://www.youtube.com/watch?v=58SNzuuaqLo
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@ThomasBomb45 - air metal batteries have not shown high reusability. It's more like use once, throw it away. When you do that, then what's the difference between that and chemical fuel? How would it be better for the environment?
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@stephen_101 - high speed means high power, and high power means combustion, not mere batteries. I'd like to think we could do hydrogen combustion, which gives water as exhaust
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