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.As in later single-screw submarines, a plastic sonar dome carrying a BQS-4 sonar and a larger, quieter slower-turning propeller (14-ft, rather than 11-ft, diameter) were fitted
And, during 1958–1959 the Albacore was fitted with a towed-array sonar mounted in her sail, the first time that hydrophones were towed behind a U.S. submarine
Конструктивно антенна ГАС состоит из 48 линейных гидрофонов высотой 43 дюйма (1092 мм) образующих цилиндр диаметром 68 дюймов (1727 мм).
1962: A Digital Multi-beam Steering (DIMUS) sonar was installed, providing an improvement in passive acoustic detection.
As in later single-screw submarines, a plastic sonar dome carrying a BQS-4 sonar and a larger, quieter slower-turning propeller (14-ft, rather than 11-ft, diameter) were fitted
The big control surfaces had unexpected effects. The worst surprise was snap roll. When the submarine turned, her sail acted as a hydroplane. Its lift, exerted sideways, flipped her over to one side. Now, the rudder acted partly as a diving plane. The sail, flipped over, also acted as a diving plane, and one far larger than the control surfaces. Any turn was inevitably accompanied by a dive—the sharper the turn, the steeper the dive. The faster the speed of the submarine, the worse the problem became. The
after edge of Albacore's sail carried a dorsal rudder (12.5 percent of the full chord of the sail) controlled by the pilot's foot pedals that was intended to alleviate snap roll.
In Phase II (1956) ... The dorsal sail was deactivated; operators found that they could reduce snap roll by turning the rudder more slowly.
Work on SCB182, a Phase III conversion funded under the FY 59 program, began in 1957 and was completed in August 1961. The ship was fitted with a new X-stern, inspired by airship practice. It was expected to make for sharper turns, so a bigger dorsal rudder was installed and its machinery reactivated, together with a circle of 10 hydraulically operated dive brakes (unfortunately hinged on their leading edges and inside the boundary layer) and a drag parachute taken from a B-47 bomber at the upper