When towing astern, chafing gear should NOT be used on a hawser which is __________.

Correct Answer: Option A — attached to an automatic towing engine

Automatic towing engines utilize a constant tension system that relies on the hawser's ability to move freely. Chafing gear can interfere with the sensor mechanisms or the spooling process, potentially causing the winch to malfunction or fail to compensate for surge, which could lead to parting the towline under extreme load.