I was just working on uploading items to my aviation store at RareAviation.com and came across this image in one of my historical documents of a drone from 1947.
The US Army Air Force was conducting testing on making a B-17 Fly Fortress a pilotless drone and as a demonstration, they flew the thing right at the U.S. Capitol.
Judging by the angle in the picture from the cockpit, that was a pretty steep dive.
The document this came from is over here.