On March 24, 1971, before a roll call on money for America's supersonic transport, the Senate's presiding officer warned the galleries against any demonstrations.
Narrated with an AI voice. Written with AI help, fact-checked by the channel's editor.
Lyle and Ruth Marsden in this story are invented. The machine, the dates, the events and every real person named are documented.
The plane was the Boeing 2707, and it never flew. This episode follows it from President Kennedy's 1963 announcement and the condition he set for stopping it, through Boeing's win over Lockheed, the sonic boom tests and four votes in Congress in 1971, to the nose section that survives in Everett, Washington. Where sources differ, the narration gives each side; the figures are in the pinned comment.
How this was made
- Research and script. Written with the help of an AI model (Claude, made by Anthropic), working from the sources listed below. Each factual claim is checked against those sources, and against a second source where one exists, in two separate AI fact-check passes and then by the channel's editor. Where sources disagree, the narration says so and gives each side.
- Narration. A synthetic voice from ElevenLabs' built-in voice set. It does not imitate anyone in the story.
- Pictures. Photographs and documents are real archival material, credited on screen and in the image credits in the pinned comment. The opening flyby is a 3D illustration of a design that never flew, built and rendered in Blender for the channel and labeled "Illustration" while on screen. Maps, diagrams, timelines and text cards are drawn for the channel by code; the maps, diagrams and timelines are labeled "Illustration made for the channel" while on screen. No picture in this episode was made by an AI image or video generator.
- Final checks. The finished video's audio is machine-transcribed against the script, and every shot is reviewed against what the narration says at that moment, both with AI tools.
- Approval. The channel's editor approves every episode before it is published.
- Corrections. If you find an error, please comment with a source. Corrections are listed in the pinned comment.
Chapters
0:00 The Senate gallery, March 24, 1971
1:35 Kennedy's condition and the contest, 1963 to 1966
3:17 The airplane, 1966 to 1969
5:19 The boom, 1964 to 1971
7:20 Four votes, March to May 1971
10:11 Seattle, 1971
12:21 The nose, and what came after
Where sources disagree: see the pinned comment.
Full sources: see the description and the pinned comment on the YouTube video.
Watch on YouTube: https://youtu.be/UlHyWsENZdg
