Helicopters are noisy. I lived next to a field where CH-54s would drop down and snatch a double-wide mobile home into the air.
Hughes 500s were better. These little multirotors would probably be best.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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