Why Tallboys were poor moving-ship weapons

Would a Tallboy bomb count as a shell-sized plunging threat to a moving warship?

Not usually; Tallboys were used against stationary ships in harbor, while moving ships were attacked with smaller bombs or later missiles.

A viewer asks whether the heavy Tallboy bomb changes the comparison between aircraft bombs and battleship shells. Tallboys were generally used against ships that were stationary in harbor rather than ships maneuvering at sea. Moving targets demanded smaller bombs that aircraft could employ more practically, with later missiles providing another option. The distinction is about weapon employment as well as explosive weight. The answer keeps an exceptional heavy bomb from distorting the battlecruiser discussion's comparison of typical threats.