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freebeard · 05-08-2019, 04:10 AM

Pure steam has almost as much lift as helium, but requires energy input to maintain lift. Electrically excite the steam and you have reaction jets for station keeping.
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https://www.quaternium.com/uas/mining/

All dimensions are metric except it has 30" propellers, so it's about 5ft long. All the proposed uses are observation, the payload is 2.5kg [5.5lb].

05-08-2019, 04:10 AM	#18 (permalink)
freebeard Master EcoModder Join Date: Aug 2012 Location: northwest of normal Posts: 28,702 Thanks: 8,147 Thanked 8,925 Times in 7,368 Posts	Pure steam has almost as much lift as helium, but requires energy input to maintain lift. Electrically excite the steam and you have reaction jets for station keeping. ____________ https://www.quaternium.com/uas/mining/ All dimensions are metric except it has 30" propellers, so it's about 5ft long. All the proposed uses are observation, the payload is 2.5kg [5.5lb]. __________________ . .Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster ____________________ . .Three conspiracy theorists walk into a bar --You can't say that is a coincidence.