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On May 18, 2002 at the Grand in Long Beach over 300 past members of the North American Aviation Saturn S-II Design, Production and Quality teams met to take a sentimental journey back to 1962 and the challenges of America's premier space adventure. The idea was born during a few days of R&R last year in Laughlin Nevada by Al Otto, John Gutsmiedl and lots of supporters. The luncheon program featured guest speakers Al Martin (Test Operations), Bill Dean (Program Manager), Dick Schwartz (Program Manager), and Hal Raiklin (Program Manager), who shared some of their insights and memories of the project. A Short highlight film on the S-II and J-2 was also shown. The primary event was the rekindling the embers of friendship and memories of the exciting challenges of preparing to send men to the moon. "We aren't doing this because it is easy but because it is hard!" Those where the words of John F. Kennedy and as Al Martin said " That's why we did it" Bill Dean introduced Ralph Rudd who headed up production and was later President of the North American Los Angeles Division. He remarked at no matter how early he would come into the office Ralph was always there before him. This was the nature of S-II team members.
The Saturn S-II was the second stage NASA's Apollo moon-landing rocket - The giant Saturn V. The most powerful hydrogen-fueled booster ever produced, the Saturn S-II was used for Apollo manned lunar missions and helped power three Americans to the moon. The S-II was developed and manufactured by North American Space Division at Seal Beach, California in what is now the U.S. Navy Weapons Station. Program technical direction was provided by the NADSA Marshall Space Flight Center in Huntsville Alabama. The S-II is 81.5 feet high and 33 feet in diameter. It weighed 80,000 pounds empty and 1,025,000 pounds loaded. It is remarkable that 40 years later so many of the "Spaceforce" that gave America it greatest achievement in history are still with us to share their stories and honor the legacy of these space pioneers.
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SLIMMED-DOWN VERSION OF SATURN SECOND STAGE TO MAKE INITIAL FLIGHT
DOWNEY, CALIF., ApriI 11, 1970--A slimmed-down version of the Saturn V's second (S-II) stage rocket will make its first flight in the Apollo 13 mission. Built by North American Rockwell's Space Division for NASA's Marshall Space Flight Center, the stage will have a launch pad unfueled weight of approximately 78,050 pounds. It is about 3000 pounds lighter than the comparably equipped and instrumented S-II for the Apollo 12 mission. The weight savings is due to the use of a new closed-cell polyurethane spray-on foam insulation on the exterior of the S-II. The new insulation is easier to apply and work with than that used in the past, is much lighter, and provides better thermal protection. Primary job of the insulation is to help keep the S-II's -423 degree F. liquid hydrogen from warming even a few degrees following launch pad fueling. A honeycomb core purged insulation was on earlier models of the S-II. The insulation was made from a vented, heat-resistant fibreglass honeycomb core filled with an open-cell polyurethane and sealed with an outer coating of nylon and tedlar. About 4500 square feet, or a tenth of an acre, of the new spray foam is used on the S-II. It is sprayed-on and then machined to the desired thickness. The new spray-on foam was used on parts of the S-II stages for both the Apollo 11 and Apollo 12 missions. The largest and most powerful hydrogen-fueled stage ever built, the S-II is 81.5 feet tall and weighs approximately one million pounds fueled. The stage is powered by five Rocketdyne-built J-2 engines which develop more than one million pounds of thrust at altitude. The S-ll takes over from the first stage to boost its third stage Apollo spacecraft payload to an altitude of about 118 miles into space and a speed of more than 14,000 miles an hour. Both the special equipment and the high-reliability foam application techniques developed in the S-II program were used by Space Division engineers in the recent insulation of a giant tuna clipper, one of the largest built in the United States specially for tuna fishing. More than 20,000 pounds of foam were utiIized in insulating the clipper's hull. Space Division engineers and scientists are studying other potential applications of the space program-developed spray foam technology. Possible uses are in petroleum chemical storage tank insulation; pipeline insulation; maritime uses such as in fishing vessel and liquid- natural gas tanker insulation; in cold storage and other types of warehouses, and in prefabricated and mobile homes. The 29th largest industrial corporation in the United States, North American Rockwell is engaged in 20 related engineering and manufacturing businesses involving high technical content products. It has major strengths in research and development, aerospace and commercial products, systems engineering, and a growing position in a number of the emerging industries.
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The Saturn V dates back to the C-5 design of 1961. The smaller and less powerful C-2, C-3 and C-4 designed were abandoned, but in 1962, NASA approved the development of the Saturn V to fufill John Kennedy's goal of landing a man on the Moon by 1970. The Saturn V was the largest rocket ever built at 363 feet and 6.4 million Lbs. The first stage was the Boeing S-IC, which was powered by five Rocketdyne F-1 engines burning kerosene and liquid oxygen. Producing 1.5 million Lbs. of thrust each, the F-1s were the most powerful single-chamber engines ever built. The F-1 was just a scaled up conventional kerosene oxygen engine. But the scaling up process proved more difficult than expected. The engines suffered unstable combustion, in one case destroying an engine on a ground test. Rocketdyne and NASA struggled for four years before a fuel injection system was created that would not only burn smoothly, but would even recover from an explosion in the combustion chamber. The North American S-II second stage proved equally challenging. Five Rocketdyne J-2 engines burned liquid hydrogen and liquid oxygen stored in thi s stage. Problems with precision welding of the monstrous stage and insulation for its liquid hydrogen tank threatened to delay the whole Apollo program. They were only solved after a reorganization at North American. The third stage of the Saturn V was the McDonnell-Douglass S-IVB stage powered by a single J-1. Attached to the top of the cylindrical stage was the IBM Instrument unit, containing the guidance system for the entire rocket. The Saturn V's Apollo payload comprised the Grumman Lunar Module (LM) concealed at launch in a tapered adapter section. Above this were the SErvice MOdule (SM) and Command Module (CM, hidden under the Boost Protective Cover at launch), both built by North American. The spire of Lockheed's Launch Escape System (LES) topped off the stack.
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