30-feet

Updated: May 7, 2025

So now our friend was getting along somewhere below with 7200 feet of 1 1/2-inch rope, and weight additional equal to the drag of sixteen 30-feet boats. Of course we knew that, unless he were dead and sinking, he could not possibly remain much longer beneath the surface.

Frank T. Bullen - The Cruise of the Cachalot Round the World After Sperm Whales