bell-shaped nozzle

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• Bell nozzle — The Bell shaped or Contour nozzle is probably the most commonly used shaped nozzle. It has a high angle expansion section ( 20 to 50 degrees) right behind the nozzle throat; this is followed by a gradual reversal of nozzle contour slope so that… …   Wikipedia

• Expanding nozzle — The expanding nozzle is a type of rocket nozzle that, unlike traditional designs, maintains its efficiency at a wide range of altitudes. It is a member of the class of altitude compensating nozzles, a class that also includes the plug nozzle and… …   Wikipedia

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• steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

• Expander cycle (rocket) — The expander cycle is a power cycle of a bipropellant rocket engine meant to improve the efficiency of fuel delivery.In an expander cycle, the fuel is heated before it is combusted, usually with waste heat from the main combustion chamber. As the …   Wikipedia

• Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi …   Wikipedia

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• Grille — A grille (French word from Latin craticula , small grill) is an opening of several slits side by side in a wall or metal sheet or other barrier, usually to let air or water enter and/or leave but keep larger objects including people and animals… …   Wikipedia

• Aerospike engine — The aerospike engine is a type of rocket engine that maintains its aerodynamic efficiency across a wide range of altitudes through the use of an aerospike nozzle. It is a member of the class of altitude compensating nozzle engines. A vehicle with …   Wikipedia