Moon Lander: How We Developed the Apollo Lunar Module
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In our eReader you can find the full English version of the book. Read Moon Lander: How We Developed the Apollo Lunar Module Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Moon Lander: How We Developed the Apollo Lunar Module
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Leaks occurred on both the pressurant (helium gas) and the propellant fuel and oxidizer sides of the system. The rocket fuel was called 50/50 (50 percent hydrazine, 50 percent unsymmetrical dimethyl hydrazine, or UDMH), and nitrogen tetroxide (N2O4) was the oxidizer. Although no leaks were tolerable anywhere in the systems, propellant leaks were extremely serious because the propellants were highly toxic volatile liquids, and being hypergolic, their fumes would ignite if combined. The search for... leak-tight joint designs was long and arduous on LM, and improvements were still being made well into the flight program.I was concerned about leakage in LM’s fluid systems even before we prepared our proposal. Without working out the details at that time, we proposed using welded or brazed joints to eliminate mechanical connections in fluid systems and mechanical energy absorbers in the landing gear to eliminate the potential leakage of hydraulic shock absorbers. As the LM design took shape in 1963 and 1964 we chose stainless steel tubing joined by high-temperature nickel-silver brazing for the propulsion and RCS systems to minimize the number of mechanical joints.
What to read after Moon Lander: How We Developed the Apollo Lunar Module?
You can find similar books in the "Read Also" column, or choose other free books by Thomas Kelly to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Leaks occurred on both the pressurant (helium gas) and the propellant fuel and oxidizer sides of the system. The rocket fuel was called 50/50 (50 percent hydrazine, 50 percent unsymmetrical dimethyl hydrazine, or UDMH), and nitrogen tetroxide (N2O4) was the oxidizer. Although no leaks were tolerable anywhere in the systems, propellant leaks were extremely serious because the propellants were highly toxic volatile liquids, and being hypergolic, their fumes would ignite if combined. The search for... leak-tight joint designs was long and arduous on LM, and improvements were still being made well into the flight program.I was concerned about leakage in LM’s fluid systems even before we prepared our proposal. Without working out the details at that time, we proposed using welded or brazed joints to eliminate mechanical connections in fluid systems and mechanical energy absorbers in the landing gear to eliminate the potential leakage of hydraulic shock absorbers. As the LM design took shape in 1963 and 1964 we chose stainless steel tubing joined by high-temperature nickel-silver brazing for the propulsion and RCS systems to minimize the number of mechanical joints.
What to read after Moon Lander: How We Developed the Apollo Lunar Module?
You can find similar books in the "Read Also" column, or choose other free books by Thomas Kelly to read onlineMoreLess
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