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PoorOldSpike
Guest
Clue- WW2
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Breakthrough
Guest
It was a large and very bright light used by multi engined ASW aircraft to light up and blind surfaced U-boats located by radar or HF/DF... The plane could then bomb its target accurately without having to deal with AA....
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zaraza
Guest
Yup, definitely Leigh Light.
It's a mobile search light could be used for almost any thing
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PoorOldSpike
Guest
ANSWER: "Leigh light used for spotting U-boats on the surface at night, fitted to a Liberator aircraft of Royal Air Force Coastal Command. 26 February 1944"