On Wednesday, 30 November 2016 20:26:18 UTC+1, Sean wrote:
You guys are worrying too much.

This is a tiny, extremely modern glider. The batteries will add AT MOST 50 lbs per wing. Probably more like 30 lb. per wing or 60 lb. total. And without batteries I'll bet these wings are AT LEAST 50 lb. lighter (EACH) than any current 15m wing.


From the information I've seen, its 4.7 kWh batteries weigh 27 kg total (i.e. 13.5 kg per wing). And each wing weighs 31 kg empty. So around 45 kg with batteries, which is still lighter than any 15 m wing I've heard about.


The prototype had a picure (99%) sure, without batteries, and the guy was carrying the wing around under his arm like a large RC glider. Maybe I am wrong on this. Anyone?

http://www.gpgliders.com/sites/defau...927_custom.jpg