Chaff countermeasures come in two main types: continuous wave (CW) chaff, used against radar-guided missiles that operate on a continuous frequency, and pulsed chaff, used against missiles that operate on a pulsed frequency.

2018年11月28日 · Perhaps most notably, radar chaff was used as part of a large-scale, elaborate diversion on June 5, 1944 to prevent German forces from knowing exactly where the Allied invasion into Nazi-held...

2022年11月17日 · Our featured artifact is a bundle of radar jamming foil strips that were commonly referred to as ‘chaff’ during WWII. It is a somewhat common misconception that the British were the first to develop RADAR during WWII.

2024年6月8日 · Some metal tape in a tattered cigar box at an aircraft museum represents some of the work used to fool the Nazis in the lead-up to D-Day on 6 June 1944. Sitting behind Perspex at the Boscombe Down...

Chaff is the name given to the radar countermeasure in which a cloud of metal strips is deployed, each of length approximately half the wavelength of the victim radar, so that each behaves as a dipole. This produces a large, diffuse false target which persists for some time as …

Chaff, originally called Window[1] by the British, and Düppel by the Second World War era German Luftwaffe (from the Berlin suburb where it was first developed), is a radar countermeasure in which aircraft or other targets spread a cloud of small, thin pieces of aluminium, metallized glass fibre...

2023年12月1日 · The use of "WINDOW" or known today as CHAFF—metal strips dispensed by the 36 BS—created false radar returns, thwarting German anti-aircraft efforts. The Squadron's support extended through hundreds of missions, including critical operations during D-Day and the Battle of the Bulge, safeguarding thousands of Allied airmen and contributing to ...

2019年2月7日 · The technology was invented during World War II, developed independently by researchers in the United Kingdom, Germany, Japan, and the United States. The first recorded use of chaff by American forces in combat was on December 20, 1943, in an air raid over Bremen, Germany, by 8th Air Force bombers.

2002年7月31日 · Aluminum or aluminized mylar (plastic) strips, thrown out of high altitude airplanes, was one form of countermeasure against radar. Later called chaff, it was originally called "window" because flight crews tossed it out of …

In the military, chaff is a bundle of small thin pieces of metal which are shot out of an airplane or warship. These thin strips of metal spread out to make many reflections for enemy radar to detect instead of the target.