Mammoth (radar)

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Air force version "Mammut"
FuMG-41/42 "Mammut", Air Force version with four masts
FMO51 / 52 "Seetakt", Kriegsmarine version with three masts

The remote search system FuMG 41/42 Mammut (Luftwaffe designation) or FMO51 / 52 Seetakt (marine designation) from Gema was an interconnection of eight (or six) Freya antenna fields on two Freya devices. This enabled targets to be located at an altitude of 8,000 m at a distance of 300 km. The antennas were permanently mounted. The directional beam could be swiveled electronically by ± 60 °. It was the world's first phased array radar .

The British camouflage name "Hoarding" is interesting, which means something like "billboard" or "notice board" and is probably related to the typical shape of the device. In its report of April 20, 1945, shortly before the end of the war, the radio reconnaissance was still of the opinion that it was only about laboratory samples that never went into operation.

Technical specifications

FuMG-416
Transmission frequency 116-146 MHz
Pulse power 20 kW
Pulse duration 2-3.5 µs
Swivel range ± 60 ° electronically
Beam width 0.5 °
resolution 300 m
Power supply Mains voltage and emergency generator
Dimensions antenna 30 m × 16 m (Air Force), 20 m × 14 m (Navy)
Weight unknown
Tube assembly similar to Freya
Range approx. 325 km

literature

  • TME 11-219 Directory of German Radar Equipment

Web links

Commons : Mammut (Radar)  - Collection of images, videos and audio files