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At the strategic level, army engineering maintenance is closely linked to military logistics. At this level, it includes work such as the design, development, and testing of new vehicles and weapon systems. It also includes lifecycle management activities once new systems become operational.
In the 1950s through 1970s, a mixture of 63% hydrazine, 32% hydrazine nitrate and 5% water was used in experimental 37mm gun firings and later in 120mm gun firings. The 32% hydrazine nitrate mixture was selected by extensive experiments to have a notably flat pressure profile, increasing gun safety.
Ordnance crest "WHAT'S IN A NAME" - military education about SNL. This is a historic (index) list of United States Army weapons and materiel, by their Standard Nomenclature List (SNL) group and individual designations — an alpha-numeric nomenclature system used in the United States Army Ordnance Corps Supply Catalogues used from about 1930 to about 1958.
Less flow resistance, lower dissolved feedwater iron concentrations, FeOOH film is more stable, reduced boiler cleaning frequency - Disadvantages: Increased risk of FAC, a deaerator is required, more frequent chemical cleaning is required, hazardous chemicals (hydrazine) are used. A deaerator is required. Air leakage is more serious.
Aerozine continues in wide use as a rocket fuel, typically with dinitrogen tetroxide (N 2 O 4) as the oxidizer, with which it is hypergolic. Aerozine 50 is more stable than hydrazine alone, and has a higher density and boiling point than UDMH alone. Pure hydrazine has a higher performance than Aerozine 50, but an inconvenient freezing point of ...
3 Engineering & maintenance vehicles. 4 Anti-tank-anti-infrastructure. 5 Artillery. 6 Air defense. 7 Army aviation. ... Standard issue rifle of military police. [2 ...
The most common hypergolic fuels, hydrazine, monomethylhydrazine and unsymmetrical dimethylhydrazine, and oxidizer, nitrogen tetroxide, are all liquid at ordinary temperatures and pressures. They are therefore sometimes called storable liquid propellants. They are suitable for use in spacecraft missions lasting many years.
Hydrazines (R 2 N−NR 2) are a class of chemical compounds with two nitrogen atoms linked via a covalent bond and which carry from one up to four alkyl or aryl substituents. . Hydrazines can be considered as derivatives of the inorganic hydrazine (H 2 N−NH 2), in which one or more hydrogen atoms have been replaced by hydrocarbon grou
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