Mark Gray
2 HN recommenders · recommended in 5 months, 2016–2024
8:43 · 10M views · Apr 8, 2013
Raw 500 fps footage from Camera E-8 on the launch tower for the Apollo 11 Saturn V liftoff, transferred in HD from the 16mm original. More than eight minutes of film covers about 30 seconds of real time.
HN commenters recommend it for its slow-motion view of the first seconds of liftoff and cite it when comparing launch pads and engine behavior.
5 comments from Hacker News
Here is 500 fps film of the Saturn V launch for Apollo 11, narrated by Mark Gray. It explains the sequence of events over the course of 8+ minutes (30 seconds real time). this video
This version of the same video includes informative narration of what are the first 30 seconds after Apollo 11 liftoff: this video
The F1 engine [1] (Saturn V, first stage) used another interesting way to improve efficiency with a gas generator cycle: using the turbopump exhaust gas as a cooling film in the engine nozzle. The fuel-rich exhaust was relatively cool compared to the flame generated by the rocket engine itself, and thus protected the nozzle from the most intense heat. This is why, close up, the flame looks almost black close to the nozzle [2]. [1] [LINK] [2] [LINK] Edit: Hopefully clarified a little, and changed the link in [2] (from this video ).
Unlikely, it wouldn't be much of a launch pad if it couldn't handle failure modes for rockets (aka bombs with a hole in one end). Compare to this Saturn V launch. this video
You could protect it in the same way they shielded the pad cameras during apollo (such as the E-8 camera this video ), with a quartz shield