Bold (decoy)
Bold (a term derived from kobold) was a German sonar decoy, used by U-boats during the Second World War from 1942 onwards. It consisted of a metal canister about 10 cm (3.9 in) in diameter filled with calcium hydride. It was launched by an ejector system colloquially referred to as Pillenwerfer (English: "pill thrower"). When mixed with seawater, the calcium hydride produced large quantities of hydrogen which bubbled out of the container, creating a false sonar target. A valve opened and closed, holding the device at a depth of about 30 m (98 ft). The device lasted 20 to 25 minutes.
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Bold (decoy)
Bold (a term derived from kobold) was a German sonar decoy, used by U-boats during the Second World War from 1942 onwards. It consisted of a metal canister about 10 cm (3.9 in) in diameter filled with calcium hydride. It was launched by an ejector system colloquially referred to as Pillenwerfer (English: "pill thrower"). When mixed with seawater, the calcium hydride produced large quantities of hydrogen which bubbled out of the container, creating a false sonar target. A valve opened and closed, holding the device at a depth of about 30 m (98 ft). The device lasted 20 to 25 minutes.
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Bold (a term derived from kobo ...... SBT (Submarine Bubble Target).
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Der Bold war ein Gerät, das zu ...... h bis Kriegsende sehr bewährt.
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Un Bold, plus familièrement co ...... l'écoute ennemie inopérante).
@fr
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968,127,921
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Bold (a term derived from kobo ...... evice lasted 20 to 25 minutes.
@en
Der Bold war ein Gerät, das zu ...... h bis Kriegsende sehr bewährt.
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Un Bold, plus familièrement co ...... du sous-marin qui l'a éjecté.
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Bold (Täuschkörper)
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Bold (decoy)
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Pillenwerfer
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