"Land Sea Aircraft Umbrella Beats Determined U-boat Attack on Atlantic Convoy. 18 February 1943, Greenock, the Safe Passage of Another Valuable Convoy Across the Atlantic Despite Powerful Forces of U-boats Has Been Assured by Carrier-borne Aircraft of the Fleet Air Arm Working in Pht-operation With Land Based Aircraft. in Two Days of Attacks One U-boat Was Destroyed Another Was Probably Destroyed and Others May Have Been Damaged." Broadside view of the escort carrier HMS ARCHER, whose aircraft made the U-boat "kill".