LORIENT
21 Whitleys and 3 Manchesters to attack the U-boat base. No aircraft lost.
42 Hampdens on minelaying operations off Brest, Lorient, and St-Nazaire. 1 aircraft lost.
1 Blenheim attacked Le Bourget airfield.
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9 Blenheims to Frisian Islands. Many attacks made on ships and 1 tanker was claimed hit. No aircraft losses.
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LORIENT
66 aircraft - 34 Wellingtons, 19 Blenheims, 12 Hampdens, 1 Stirling - to bomb the U-boat base but bad visibility caused poor bombing. 1 Blenheim and 1 Hampden lost.
Minor Operations: 6 aircraft to Ostend, 7 Hampdens minelaying off Bordeaux, 1 O.T.U. sortie. 1 Wellington lost on the Ostend raid.
