Evading acoustic torpedoes below 24 knots

The video describes an approach for warships too slow to outrun a T5 acoustic torpedo and not fitted with Foxer decoys, a category that included many convoy escorts limited to roughly sixteen to twenty knots. An escort charged the sighted U-boat for two minutes, then made a timed 60-degree turn and held it for three minutes to move outside the torpedo's acoustic detection range. If the submarine remained surfaced, the ship repeated the approach and turn while firing available weapons. Once the U-boat dived, the escort rushed the position and slowed only when close enough to begin a sonar search, linking torpedo evasion to the wider hunt.