Cape Fagnet is the highest point of the Alabaster Coast, it offers a breathtaking panorama of the sea, the cliffs, the harbor and the town of Fecamp. It peaks at 105 m and was once called the “Slam Fécamp.” It is currently occupied by a navy radar installation. Cape Fagnet was part of the German Atlantic Wall defence system, hosting a couple of gun bunkers and two radar installations.  One of the radars was made in Wurzburg which we visited before.

The FuMG 41/42 Mammut was a long-range, phased array, early warning radar built by Germany in the latter days of World War II. Developed by the GEMA company, it consisted of six or eight Frey antenna arrays, switched together and coupled to two Freya devices. The arrays were fixed and the beam could be electronically steered on a 100° arc in front and behind the antenna, leaving 80° blind arcs on each side. It was the world’s first phased array radar and was able to detect targets flying at an altitude of 8,000m at a range of 300km.