FuMO 21 radar

The FuMO 21 (Funkmess-Ortung, "Radio-direction finder, active ranging") was designed in 1941 as a search radar for Nazi Germany's Kriegsmarine, suitable for ships between light cruiser and large torpedo boats in size. First designated FMG[Note 1] 39G(gL),[1] it received its final designation when the Kriegsmarine revised its radar nomenclature system around 1943.[2] It was derived from the earlier Seetakt search radar and had an antenna 2 m × 4 m (6 ft 7 in × 13 ft 1 in) in size.[1]

FuMO 21
The rectangular antenna of the FuMO 21 of the ex-German torpedo boat T35
Country of originNazi Germany
Introduced1941
TypeSearch radar
Frequency368 MHz/81.5 cm
PRF500 per second
Pulsewidth5 μs
Rangeabout 10 nmi (19 km; 12 mi)
Precision±70 m (230 ft)
Power8 kW

Notes
  1. Funkmess-Gerät (Radio-direction finding device)

Citations
  1. Friedman, p. 205
  2. Sieche, p. 5

Bibliography
  • Friedman, Norman (1981). Naval Radar. London: Conway Maritime Press. ISBN 0-85177-238-2.
  • Sieche, Erwin (1982). "German Naval Radar". In Roberts, John (ed.). Warship VI. London: Conway Maritime Press. pp. 2–10, 146–153. ISBN 0-87021-981-2.
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