NASA Apollo Saturn V Rocket Program Second Stage
Length: 5MIN
#darkskyfiles #nasa #apollo #space
This short NASA film from the Apollo Program, details the second stage of the mighty Saturn V rocket. Known as the S-II (pronounced "ess two") was the second stage of the Saturn V rocket. It was built by North American Aviation. Using liquid hydrogen (LH2) and liquid oxygen (LOX) it had five J-2 engines in a quincunx pattern. The second stage accelerated the Saturn V through the upper atmosphere with 1,000,000 pounds-force (4,400 kN) of thrust. The S-II was built by North American Aviation at Seal Beach, California. Using liquid hydrogen and liquid oxygen, it had five Rocketdyne J-2 engines in a similar arrangement to the S-IC, also using the outer engines for control. The S-II was 81 feet 7 inches (24.87 m) tall with a diameter of 33 feet (10 m), identical to the S-IC, and thus was the largest cryogenic stage until the launch of the STS. The S-II had a dry weight of about 80,000 pounds (36,000 kg) and fully fueled, weighed 1,060,000 pounds (480,000 kg). The second stage accelerated the Saturn V through the upper atmosphere with 1,100,000 pounds-force (4,900 kN) of thrust in vacuum. When loaded, significantly more than 90 percent of the mass of the stage was propellant; however, the ultra-lightweight design had led to two failures in structural testing. Instead of having an intertank structure to separate the two fuel tanks as was done in the S-IC, the S-II used a common bulkhead that was constructed from both the top of the LOX tank and bottom of the LH2 tank. It consisted of two aluminum sheets separated by a honeycomb structure made of phenolic resin. This bulkhead had to insulate against the 126 °F (52 °C) temperature gradient between the two tanks. The use of a common bulkhead saved 7,900 pounds (3.6 t). Like the S-IC, the S-II was transported from its manufacturing plant to the Cape by sea. We encourage viewers to add comments and, especially, to provide additional information about our videos by adding a comment! See something interesting? Tell people what it is and what they can see by writing something for example like: "01:00:12:00 -- President Roosevelt is seen meeting with Winston Churchill at the Quebec Conference." This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD and 2k. For more information visit http://www.PeriscopeFilm.com
-
54:09
DARKSKY Files
7 months agoUFOS The Complete Truth We Are Not Alone
273 -
2:26:45
Laura Loomer
9 hours agoEP56: Democrats in Fetal Position as Trump Keeps Stacking W's
42.7K99 -
1:31:24
The Anthony Rogers Show
17 hours agoEpisode 225 - JT Barnett (Producer of Tiger King)
43.7K -
31:30
Degenerate Plays
1 day agoThe True American Sniper Is At Half-Mast - Call Of Duty Modern Warfare Remastered : Part 10
44.3K1 -
2:24:27
WeAreChange
9 hours agoTrump Has A Clear Path To Victory But It's A TRAP...
58K43 -
2:02:43
Kim Iversen
10 hours agoAzov Battalion Enacted a Silent Coup in Ukraine | Jack Posobiec: The Secret History Of Communist Revolutions
67K156 -
1:43:19
The Nima Yamini Show
9 hours agoMilo Yiannopoulos X Nima Yamini
44K46 -
2:11:25
Robert Gouveia
13 hours agoJack Smith in DANGER; Bragg's BIG Sentencing PROBLEM; Classified Docs DISMISSAL Fight
73.9K87 -
59:41
The StoneZONE with Roger Stone
16 hours agoKash Patel Joins Roger Stone To Talk About The Best Week In Donald Trump's Life | The StoneZONE
50.4K36 -
56:42
Edge of Wonder
14 hours agoIs Japan’s “Atlantis” Yonaguni Monument Man-Made? New Evidence Emerges
43K17