"ProAirsport is currently building two demonstration aircraft (one each for the UK and US markets) with inaugural flights expected in September/October of 2015."

http://www.gizmag.com/glow-glider-mi...irsport/36549/

They're also talking about a soaring engine-off UAV version. Investors must like idea.

Other planes/developers have previously demonstratred XC soaring with autopilots in model size gliders.

They say that the wings are proven components off-the-shelf (COTS). Might that be the PW_5 wing? Best L/D is similar.