RE: info about Drone (BTT3 Banshee)?
Not too long ago, read an article in a 1970's era American Aircraft Modeler about some one who restored a WW2 era target drone. He found out they were essentially very crude and heavy. Most of his were made via the Frankfort Arsenal in Northern Illinois. No one there now remembers the era, only the 1980s' are considered late for them.
Wm.