On 15 September, after repairs, 27 Avro Lancasters flew with Barnes Wallis' 5-tonne Tallboy bombs and experimental 500-pound "Johnny Walker" underwater "walking" mines.
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Thirty-eight Avro Lancasters of 617 and 9 Squadrons, two Liberator transports and a weather reconnaissance Mosquito set off for Yagodnik on the night of 10 September 1944.
Yagodnik |
Flying from an airfield at Yagodnik, near Arkhangelsk on the Kola Peninsula in northern Russia, they attacked the German battleship Tirpitz in the Kaa Fjord.