230
Russians complain that cheap Hornet UAVs now reach Crimea.
(thelemmy.club)
News related to Ukraine
Community Rules
πΊπ¦ Sympathy for enemy combatants is prohibited.
π»π€’No content depicting extreme violence or gore.
π₯Posts containing combat footage should include [Combat] in title
π·[Combat] videos containing footage of a visible human must be flagged NSFW
No AI slop
β Server Rules
π³ Defense Aid π₯
π³ Humanitarian Aid βοΈβοΈ
πͺ Volunteer with the International Legionnaires
See also:
For this application hydrogen makes more sense.
Yeah I thought the same thing, but no. People who actually launch weather balloons swear off hydrogen like a plague, because apparently it explodes while you are filling the balloon.
That makes sense, although in wartime it would matter less. You can also generate it fairly portably with ferrosilicon and acid.
It's worth mentioning a football field or whatever of Mylar won't be free. Big balloons retail for hundreds on their own according to a quick search.