SACLANT had been under no illusions about the losses which the Soviet submarines might inflict, with their horizon-range and stand-off missiles. Measures had been taken, therefore, to limit the effectiveness of the Soviet ocean surveillance satellites and air reconnaissance. Since the destruction of three of the Conakry-based reconnaissance
For the first two days of the transit, US and Canadian MR aircraft operating from Newfoundland would support the convoys. For the last two, RAF MR aircraft based in south-west England would take over. For the perilous two days in mid-Atlantic, the best that could be hoped for from the shore would be spasmodic cover from the already over-stretched US Navy Air Force
The Commander Strike Fleet Atlantic, entering the Iceland-Faroes gap on 10 August, was extremely thankful to have had the protection, during this transit, of fighters from Newfoundland and Iceland. These were maintained by air-to-air refuelling, and operated with the AWACS aircraft in continuous attendance. There had been a strong westerly wind, and the need to operate fixed-wing aircraft from the carriers would have slowed him down. As it was, he had made a speed of more than twenty knots. What worried him was the absence of submarine contacts. Several Soviet submarines had been plotted, according to STASS and shore-based intelligence reports, in the general area of his advance. He had hoped to detect at least some of these with his helicopter searches and bring them to action. How else could he carry out his mission of reducing the submarine threat to the convoys, now en route to Europe?