The FB111 was a great fun at low level. It had terrain following radar linked into the auto pilot. The lowest setting was 200 feet but we weren't allowed to fly our "Oil Burner" routes that low though. That was our war time setting. One Guy on one of our prime routes had a mink farm and kept trying to sue the Air Force for freaking out his animals as we flew over his farm at around a 1000' and 500 knots.
Between the computer, terrain following radar, and inertial navigation system, the pilot and Radar Navigator were on board just to refuel and drop the bombs. Of course I wasn't about to take my hand off the stick when we were down there.

My pastel painting "Into the Sunset" and Haiku reflecting my current life status:
"Into the Sunset"
The sunset beckons
I fly the valley of clouds
Tracking the beacon home.