page_title: Rocket engine nozzle
hierarchical_section_title: Rocket engine nozzle
caption_attribution_description: English: Rocket nozzle on the first stage of a RSA-3 Leo Rocket
context_page_description: A rocket engine nozzle is a propelling nozzle used in a rocket engine to expand and accelerate the combustion gases produced by burning propellants so that the exhaust gases exit the nozzle at hypersonic velocities.
  Simply: the rocket generates high pressure, a few hundred atmospheres. The nozzle turns the static high pressure high temperature gas into rapidly moving gas at near-ambient pressure.
context_section_description: A rocket engine nozzle is a propelling nozzle (usually of the de Laval type) used in a rocket engine to expand and accelerate the combustion gases produced by burning propellants so that the exhaust gases exit the nozzle at hypersonic velocities.
  Simply: the rocket (pumps and a combustion chamber) generates high pressure, a few hundred atmospheres. The nozzle turns the static high pressure high temperature gas into rapidly moving gas at near-ambient pressure.
caption: Nozzle on the first stage of an RSA-3 rocket
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