Question: A sonar transducer is being designed for a new class of U . S . Navy warship. The full - scale prototype is a 1

A sonar transducer is being designed for a new class of U.S. Navy warship. The full-scale prototype is a 1-ft-diameter sphere that will be towed (fully submerged) under the ship at 5 knots in sea water. The drag for this transducer is to be predicted from a scale-model wind tunnel test. The model is 6 inches in diameter. Calculate the required test speed for the model in air. If the model drag is measured to be 5.58 lbf , estimate the drag force on the prototype.
A sonar transducer is being designed for a new

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