[pharrington]

From weflywright.com:

    As Bart wisely suggested, we’ve designed our battery strategy to be robust to different battery futures.

    If batteries don’t get dramatically better in the next decade, we design our plane as a hybrid with electric motors, like a Volt. It still has great cost savings as compared to today’s planes, and it doesn’t require massive battery advances.
    If batteries do get a lot better in the next decade, our plane is fully-electric and has fantastic cost savings. See chart #2 below; a near-future jump to a chemistry like Li-Metal doesn’t seem beyond the realm of possibility.

There is no plane. What they have at this point is a couple ideas for potential designs.