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A comment on MIT’s gas-powered drone is able to stay in the air for five days at a time. Parent comment

Re:MIT’s gas-powered drone is able to stay in the air for fi... by ForHackernews on Wednesday June 28, 2017 @05:46AM (#14652842)
If it's an unmanned drone-blimp, the safety issue because somewhat less critical.
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Re:MIT’s gas-powered drone is able to stay in the air for fi... by gozur88 on Wednesday June 28, 2017 @09:28PM (#14660075)
But still critical enough to make it impractical. How would you do maintenance on a hydrogen airship without risking the people doing the maintenance? And you'd never be able to fly over populated areas.
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