There used to be a 1-36 drone out at Edwards. They had a 1-36 and a PIK motorglider sitting in the NASA hangar. Seems like the 1-36 was flown both with and without a pilot. I think I remember seeing a picture of the 1-36 flying (falling) with a "dethermalizer" tailplane setup for high angles of attack research.

Ah, found a picture of the NASA 1-36. It was used for deep stall research. Here's the url:

http://www.nasa.gov/centers/armstron...l#.VKq2dydEWLk