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Electric helicopters would be facing the same problem as electric planes - energy density. Right now fossil fuel energy density is still some 40 times greater t
by neverminder 5y ago
Electric helicopters would be facing the same problem as electric planes - energy density. Right now fossil fuel energy density is still some 40 times greater than batteries and I don't think conventional batteries will ever come even close to matching it. There would have to be some radically new type of a battery, if such a thing is even possible.
- ben_w 5y agoThat becomes relevant precisely when the the battery mass is a significant fraction of total mass; for long distance flights, this would clearly be the case because even hydrocarbons are barely sufficient density on the longest flights; for point-to-point within a single city, which is how I expect Average Jo to use one if they were safe & available at affordable rates, I expect it isn’t an issue.