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#2
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On Monday, January 9, 2017 at 9:10:02 PM UTC-6, Soartech wrote:
http://newatlas.com/vanilla-aircraft...-record/47295/ Very efficent! Jet-fuel powered but with a large propeller at the back. Could be a Diesel engine driving it. I'm sure there are pistons and gear reductions involved.. Impressive performance, shows you on how little power a clean airframe can sustain altitude. |
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On Tuesday, January 10, 2017 at 9:15:04 AM UTC-8, Jim White wrote:
Taking the JS3 high wing idea a bit far? Or is it Slingby T-21 "Rhon Moose"? Jim |
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It's hard to get impressed by a 56 hour unmanned flight when 30 years ago Voyager carried two people and everything needed to make them happy for 9 days; plus they didn't just hang out -- they went somewhere.
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#6
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Lange Aviation is producing fuel cell powered UAVs. The H2 has been in service for a few years and the H3 is currently in production and will have a range of over 5000 km and 40 hours.
H2: https://youtu.be/UCY21dHGxJk https://youtu.be/-a-VO4oL4yY |
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And what does this have to do with soaring??
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