One of two Naval Air System Command’s (NAVAIR) MH-60R “Knighthawk” helicopters conducts an airborne low frequency sonar (ALFS) operation during testing and evaluation at the Atlantic Undersea Test and Evaluation Center (AUTEC). Pilots logged 126 hours on the two helicopters in three weeks and captured all of the data required by the test plan. (Photo: U.S. Navy)
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