Aeroflot Flight 6502 - Wikipediahttps://en.wikipedia.org/wiki/Aeroflot_Flight_6502
Berkeley Historical Plaque Project – Morrell Airshiphttp://berkeleyplaques.org/e-plaque/morrell-airship/?cat=39
Columbia's Last Flight - The Atlantichttps://www.theatlantic.com/magazine/archive/2003/11/columbias-last-flight/304204/
How One Crash 10 Years Ago Helped Keep 90 Million Flights Safehttps://www.bloomberg.com/news/articles/2019-02-12/the-colgan-air-crash-helped-keep-90-million-flights-safe
The Turn - 93.12https://www.theatlantic.com/past/docs/unbound/langew/turn.htm
boeing 727 crash testhttps://www.reddit.com/r/interestingasfuck/comments/116ndjm/boeing_727_crash_test/