Can submarines control the buoyancy of their towed sonar?

Thanks for the A2A. Submarine towed arrays are either 'clip on' or reeled out. In the case of the reeled array this can be either from an internal array handling space or from an external pod. read more

As Cody Jackson says, submarine towed arrays don’t have specific buoyancy controls - his analogy of a kite is excellent. One of the key challenges to successful operations with a long towed array is keeping it straight and level, the submarine crew know the minimum speed and maximum turn rates/frequencies to ensure that the array stays level and straight behind them. read more

­A submarine or a ship can float because the weight of water that it displaces is equal to the­ weight of the ship. This displacement of water creates an upward force called the buoyant force and acts opposite to gravity, which would pull the ship down. Unlike a ship, a submarine can control its buoyancy, thus allowing it to sink and surface at will. read more