The Telecommunications Research Establishment was the main United Kingdom research and development organisation for radio navigation, radar, infra-red detection for heat seeking missiles, and related
Huts of the TRE, Malvern, winter 1942-3
Radar research memorial at St Aldhelm's Head near Worth Matravers, unveiled by Sir Bernard Lovell
Chaff (countermeasure)
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Chaff, originally called Window or Düppel, is a radar countermeasure involving the dispersal of thin strips of aluminium, metallized glass fiber, or plastic. Dispersed chaff produces a large radar cro
Telecommunications Research Establishment
…Robert Cockburn, electronics engineer. He directed the development of radar jamming systems (counter measures) code named Window and widely known as Chaff. An obituary describes this work as "a main contributor to the reduction of civilian [air raid]casualties ... and [bomber] losses". He is in a group…
Modern US Navy RR-144 (top) and RR-129 (bottom) chaff countermeasures and containers. Note how the strips of the RR-129 chaff (bottom) are of different widths, while those of the RR-144 (top) are all the same width. The RR-144 is designed to prevent interference with civil ATC radar systems.
A factory worker producing chaff during World War II
A Lancaster dropping chaff (the crescent-shaped white cloud on the left of the picture) over Essen during a thousand-bomber raid
Two forms of RAF "Window" radar countermeasure: chopped aluminium wire and paper backed with aluminium foil