A viewer uses a submarine comparison to emphasize how little freeboard Benbow presents above the waterline. Benbow still has more freeboard once the submarine's conning tower is excluded, though only by a narrow margin. The exchange explicitly agrees that the conning tower does not count toward freeboard. The visual joke becomes a compact lesson about which part of a vessel should be compared when discussing hull height above the water.
Notable Point · 7:34-8:04
Why Benbow's low freeboard invites a submarine comparison
A brief comparison with a submarine clarifies that its conning tower does not count as freeboard and underscores how low Benbow sat above the water.