This week on the channel +769K views this week

Titan's carbon-fibre hull gets a Mentour's Black Box examination

Jake Ryland traces the submersible's design, pressure loads and warning signals in the channel's sole new upload.

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Mentour's Black Box Story of November 12, 2026Trari Newsroom

Why this story? The channel's weekly summary: what went up this week, what is drawing views now, and where the channel stands among similar channels.

Why The Titan Sub Was ALWAYS Going To Fail

Things we can learn from the video

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4:58Titan combines a cylindrical carbon-fibre pressure hull with titanium endcaps, unlike the spherical hulls introduced earlier.
9:36Hydrostatic pressure creates an enormous pressure difference between the cabin and the surrounding deep ocean.
13:36Carbon fibre's directional properties make its behaviour under compression different from its strength under tension.
28:18Ryland describes a loud bang on Dive 80 and permanently changed strain readings before further dives.
45:56Recovered carbon-fibre layers support the documentary's explanation of progressive weakening followed by catastrophic collapse.

Fail-safe ballast can help a submersible rise, but it cannot make a weakened pressure hull sound. That distinction runs through Mentour's Black Box's new documentary, "Why The Titan Sub Was ALWAYS Going To Fail", which has reached roughly 659,000 views since its release.

Presenter Jake Ryland builds the explanation around materials and shape. He contrasts earlier submersibles' spherical titanium hulls with Titan's carbon-fibre cylinder and titanium endcaps, then explains why a material's strength under tension does not guarantee its performance under compression. The episode includes a sponsored learning-platform segment.

The later chapters follow the hull's history and monitoring equipment. Ryland describes cracking during an earlier dive, the construction of a replacement hull, and a loud bang on Dive 80 followed by permanently changed strain readings. The documentary connects those signs to its explanation of progressive structural weakness, before reconstructing the final descent and examining recovered wreckage. Viewers' discussion repeatedly returns to the purpose of an early-warning system if its signals do not prompt action.

Titan is now the channel's strongest source of daily views. Across Mentour's Black Box, daily viewing is running at more than twice its usual level, while the channel added about 4,000 subscribers over the week. Among its documentary peers, Chronicle - Medieval History Documentaries is also seeing elevated daily viewing; SBS Dateline is closer to its usual rhythm.

The older investigations have movement of their own. The Bhopal episode continues to attract viewers, while "The Nuclear Nightmare Of Fukushima" is approaching a million views, extending the audience for a documentary released in July.

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