TSR2's TFR.
http://www.ausairpower.net/Profile-BAC-TSR.2.html
The TSR.2 employed a dual channel Terrain Following Radar (TFR) conceptually similar to that in the F-111. The TSR.2 system employed a Ferranti monopulse TFR, which fed the dual channel Elliot Automation autopilot/TF computer with terrain profile measurements ahead of the aircraft. A pair of STC radar altimeters complemented the TFR. The system provided not only automated vertical clearance down to 200 ft AGL, but also provided for automatic routing around obstacles. The terrain clearance data was also provided to the pilot as cues on his Rank-Cintel Head Up Display (HUD). Both crewmembers had moving map displays, in addition the navigator had a large radar scope. It was intended that the pilot's station be fitted with three digital cockpit displays (MFDs) in production aircraft. It was intended that the pilot's workload be minimised, to this effect a fully automatic fuel management system was fitted to balance the aircraft's CoG.