Not C/L but historic anyway

[Peter Germann]

Check this to witness in realtime a bit of aeronautical history:

http://www.solarimpulse.com/widget-instruments

[John Rist]

Cool but not practical.  It has no payload capacity.  It's like our models the aircraft is the payload.

[Bob Reeves]

Wright brothers first flight would barely carry one person and look where we are now.

[John Rist]

Wright brothers first flight would barely carry one person and look where we are now.

True but they were using nasty old gas.  Gas has a large amount of energy per pound.  The sun has only so much energy per sq ft.  On the environmental side of the discussion the batteries we use have some really nasty stuff in them.