In my simpleton mind, I cannot understand why we do not use more blimps for transporting goods. Seems engines and fuel could be done with solar, also seems like they could be automated. Is it simply not cost effective? Is it dangerous even though modern blimps use helium? Eli5.
In: Engineering
In addition to what other people said. When it comes to blimps or zeppelins, 90% of the crafts volume is taken up just by the lifting gasses. That is just *not* efficient compared to a jet, container ship, or truck.
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