This 6.6M Antares 20E by Baudis has become a favorite, a "go to" all around scale sailplane.
Adding an EDF unit:
Who says glass slippers are always white...but then again, this 1:3 scale CARF Models DG-800 S is mostly carbon fiber! Super strong airframe and super fast.
Len's DG-800 Thread
Kevin's Build Thread
Looking for a scale V-tail sailplane, here is a great choice!
The 5m/6m Let Ventus should be on everyone's short list of desirable scale sailplane models.