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The Bisnovat (later Molniya then Vympel) R-40 (NATO reporting name AA-6 'Acrid') is a long-range air-to-air missile developed in the 1960s by the Soviet Union specifically for the MiG-25P interceptor, but can also be carried by the later MiG-31.
The open-cycle gas-core rocket has many unique design attributes that make it a serious challenger to other proposed propulsion for interplanetary missions. Due to the necessity of having a transparent wall inside the reactor for a closed cycle concept, the benefit of moving to a gas core from a solid core are nearly negated. The high specific ...
UN 2186: 2: Hydrogen chloride, refrigerated liquid UN 2187: 2: ... Hexafluoroethane, compressed or Refrigerant gas R 116 UN 2194: 2: Selenium hexafluoride: UN 2195: 2:
It is powered by a hypergolic mixture of unsymmetrical dimethylhydrazine (UDMH) fuel with dinitrogen tetroxide (N 2 O 4) oxidizer. [2] This combination is hypergolic, meaning the two substances ignite on contact, eliminating the need for an external ignition source. The RD-855 can orient its chambers within a range of ±42° using hydraulic ...
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston (one up and one down movement) in one revolution of the crankshaft.
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R40 (New York City Subway car) Chloromethane, a refrigerant; R40: Limited evidence of a carcinogenic effect, a risk phrase; R40 Live Tour, a 2015 tour by Canadian rock band Rush; R40 series of preferred numbers; Renault R40, a French tank; Rover 75, an executive car; Samsung Sens R40, a laptop; Toyota TownAce (R40), a Japanese van
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