What Does ET Stand For?
ET stands for External Tank
ET, or External Tank, refers to a large, externally mounted fuel tank used primarily in space transportation systems. It is designed to store and supply liquid fuel and oxidizer to the main engines of a launch vehicle during ascent. The External Tank is a critical component in the Space Shuttle program, as it provides the necessary propellant for the shuttle's main engines while being jettisoned once its fuel is depleted, allowing the shuttle to continue its mission efficiently.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym