Was it the Silent2? This is a really cool electric sailplane with a very innovative FES (Front Electric Sustainer) system. Far less moving parts and complexity than traditional boom mounted motor gliders.

http://www.alisport.com/eu/eng/silent2electro.htm

The Antares is an amazing machine in virtually every way, but its also expensive and fairly full on (250k+).

The Silent is well under 100k new, I think...

Hope you find what your looking for.

Sean
F2