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Aestus

European rocket engine

Also known as Astrium Aestus

Instance of: engine model
Subclass of: pressure-fed engine

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Aestus is a hypergolic liquid rocket engine used on an upper stage of Ariane 5 family rockets for the orbital insertion. It features unique design of 132 coaxial injection elements causing swirl mixing of the MMH propellants with nitrogen tetroxide oxidizer. The pressure-fed engine allows for multiple re-ignitions.

Overview

All data

8 statements · 0% with external sources · numbers in brackets are citations

Manufacturer: Astrium
Source of energy: dinitrogen tetroxide
monomethylhydrazine
First flight: October 30, 1997
Service retirement: July 25, 2018

On other databases

1 identifiers linking Aestus across the web's reference databases

Freebase ID/m/05sp7jj

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Source last edited June 9, 2026. AIDB refreshes this page daily.

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AIDB. (2026). Aestus (Q16840). Retrieved from https://aidb.si/e/aestus-Q16840