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- Thetis_(decoy) abstract "Thetis was the name of a floating radar decoy used by German U-boats during the Second World War. The device was stored dismantled in the bow compartment as a pole about two metres long. Assembly usually took place in the U-boat's conning tower, and could be assembled in about four minutes (FuMT 2 - Thetis IIC). Later versions could be launched from a standard torpedo tube (FuMT 4 - Thetis US). When deployed, it was extended to a total length of eight metres, half of which was submerged. The upper half had a series of reflectors that were tuned to Allied anti-submarine radar wavelengths to give the same return signal as a U-boat. The number of Thetis decoys carried varied between different U-boats: U-66 carried approximately 12 units during her 10th and last patrol between 16 January 1944 and 6 May; all were used in the Bay of Biscay. U-91 carried 16 units during her 6th and last patrol between 25 January 1944 and 25 February. U-371 carried an unknown number of units during her 21st and last patrol between 23 April 1944 and 4 May. U-575 carried 15 units during her 13th and last patrol between 29 February 1944 and 13 March. U-575 would surface every night and laid a total of 10 on her outward voyage, the remaining units were to have been laid in the same area on her return. U-744 carried 20 units during her 2nd and last patrol between 24 February 1944 and 6 March. U-744 used them on her outward voyage between 11°W and 12°W in the Bay of Biscay.The first time the Allies knew about the "Thetis" was in a coded radio message to all U-boats transmitted on 11 January 1944. "Thetis" was introduced in January, when large numbers were released into the Bay of Biscay in July to simulate U-boat patrols during the Battle of Normandy.".
- Thetis_(decoy) thumbnail Thetis_radar_decoy.jpg?width=300.
- Thetis_(decoy) wikiPageExternalLink SRH025-2.html.
- Thetis_(decoy) wikiPageExternalLink U-66INT.htm.
- Thetis_(decoy) wikiPageID "3750278".
- Thetis_(decoy) wikiPageRevisionID "544267464".
- Thetis_(decoy) hasPhotoCollection Thetis_(decoy).
- Thetis_(decoy) subject Category:Weapons_countermeasures.
- Thetis_(decoy) type Abstraction100002137.
- Thetis_(decoy) type Act100030358.
- Thetis_(decoy) type Action100037396.
- Thetis_(decoy) type Choice100161243.
- Thetis_(decoy) type Countermeasure100174663.
- Thetis_(decoy) type Decision100162632.
- Thetis_(decoy) type Event100029378.
- Thetis_(decoy) type Maneuver100168237.
- Thetis_(decoy) type Measure100174412.
- Thetis_(decoy) type Move100165942.
- Thetis_(decoy) type PsychologicalFeature100023100.
- Thetis_(decoy) type WeaponsCountermeasures.
- Thetis_(decoy) type YagoPermanentlyLocatedEntity.
- Thetis_(decoy) comment "Thetis was the name of a floating radar decoy used by German U-boats during the Second World War. The device was stored dismantled in the bow compartment as a pole about two metres long. Assembly usually took place in the U-boat's conning tower, and could be assembled in about four minutes (FuMT 2 - Thetis IIC). Later versions could be launched from a standard torpedo tube (FuMT 4 - Thetis US). When deployed, it was extended to a total length of eight metres, half of which was submerged.".
- Thetis_(decoy) label "Thetis (decoy)".
- Thetis_(decoy) label "Thetis (inganno radar)".
- Thetis_(decoy) sameAs Thetis_(inganno_radar).
- Thetis_(decoy) sameAs m.09z02j.
- Thetis_(decoy) sameAs Q3990380.
- Thetis_(decoy) sameAs Q3990380.
- Thetis_(decoy) sameAs Thetis_(decoy).
- Thetis_(decoy) wasDerivedFrom Thetis_(decoy)?oldid=544267464.
- Thetis_(decoy) depiction Thetis_radar_decoy.jpg.
- Thetis_(decoy) isPrimaryTopicOf Thetis_(decoy).
