File:Apollo 11 launch, video of engines at 500 fps (camera E-8).ogv
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editDescriptionApollo 11 launch, video of engines at 500 fps (camera E-8).ogv |
English: Video of the Apollo 11 launch, taken from the base of the Launch Umbilical Tower on the Mobile Launcher. Camera E-8 captured this footage on 16 mm film at 500 frames per second. This footage takes place within approximately 30 seconds of real time.
The initial flames are the result of kerosene and liquid oxygen being released from the Saturn V rocket's fuel tanks and being ignited by hypergolic cartridges, which spin up the turbines and drive fuel to the F-1 engines. After reaching full thrust, the downward force of the exhaust creates a low pressure area which pulls the billowing gas below the vehicle and into the flame trench. To the right of the vehicle are two tail service masts (a third is on the opposite side of the rocket), and equidistant around the rocket are four hold-down arms. At T-0, the hold down arms release the rocket, and the tail service masts begin to swing up into protective hoods. During the launch, ice that had formed around the rocket (due to the extremely cold liquid oxygen inside) can be seen falling off. The dark material seen leaving the engines during liftoff is cooler exhaust gas from the turbines being ejected through the engine nozzle, the idea being that the cooler gas would act as an insulator for the nozzle against the extreme temperatures of the ignited fuel. Surfaces and equipment on the Launch Umbilical Tower and Mobile Launcher were painted with an ablative material which would burn off under the heat of the launch and protect the underlying surfaces. Throughout the latter part of the video, this ablative material can be seen charring and burning. During launch, the pad's Water Deluge System discharged some 300,000 gallons of water onto the surfaces of the Mobile Launcher and Launch Umbilical Tower, and into the flame trench, to both cool the pad and dampen the acoustic shock waves produced by the engine exhaust. During launch, much of the water boiled away as steam, though it can be seen cascading on the pad's surface in the latter part of the video.Čeština: Zpomalené záběry raketových motorů při startu letu of Apolla 11 k Měsíci z pojízdné odpalovací plošiny dne 16. července 1969 . V reálné čase proběhl celý start během přibližně 30 vteřin, kamera E-8 snímala start na 16mm film rychlostí 500 snímků/vteřinu.
Polski: Silniki rakiety Saturn V wynoszącej statki kosmiczne misji Apollo 11 podczas startu tej misji z ruchomej wyrzutni w dniu 16 lipca 1969 roku. Rzeczywisty czas trwania nagrania to około 30 sekund, zostało ono zarejestrowane za pomocą kamery E-8 na filmie 16 mm z prędkością 500 klatek na sekundę. |
Date | |
Source | YouTube: Apollo 11 Saturn V Launch (HD) Camera E-8 – View/save archived versions on archive.org and archive.today |
Author | NASA/Kennedy Space Center |
Camera location | 28° 36′ 29.52″ N, 80° 36′ 14.76″ W | View this and other nearby images on: OpenStreetMap | 28.608200; -80.604100 |
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Assessment
editThis file was selected as the media of the day for 28 December 2017. It was captioned as follows:
English: Video of Apollo 11 engines during launch on 16th July 1969 from the Mobile Launcher. This footage takes place within approximately 30 seconds, camera E-8 captured on 16 mm film at 500 frames per second.
Other languages
Čeština: Zpomalené záběry raketových motorů při startu letu of Apolla 11 k Měsíci z pojízdné odpalovací plošiny dne 16. července 1969 . V reálné čase proběhl celý start během přibližně 30 vteřin, kamera E-8 snímala start na 16mm film rychlostí 500 snímků/vteřinu. English: Video of Apollo 11 engines during launch on 16th July 1969 from the Mobile Launcher. This footage takes place within approximately 30 seconds, camera E-8 captured on 16 mm film at 500 frames per second. Polski: Silniki rakiety Saturn V wynoszącej statki kosmiczne misji Apollo 11 podczas startu tej misji z ruchomej wyrzutni w dniu 16 lipca 1969 roku. Rzeczywisty czas trwania nagrania to około 30 sekund, zostało ono zarejestrowane za pomocą kamery E-8 na filmie 16 mm z prędkością 500 klatek na sekundę.
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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current | 13:16, 17 July 2014 | 8 min 16 s, 1,280 × 720 (165.54 MB) | Huntster (talk | contribs) | User created page with UploadWizard |
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