Article · Wikipedia archive · Last revised Jun 20, 2026

Sustainer engine

A sustainer engine is a rocket engine which remains with a spacecraft during its ascent after booster engines have separated from the spacecraft.

Last revised

Jun 20, 2026

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≈ 1 min

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Source

After the two solid rocket boosters separate, the Space Shuttle's three Main Engines act as sustainers source ↗

A sustainer engine is a rocket engine which remains with a spacecraft during its ascent after booster engines have separated from the spacecraft.¹

See also

See also

Multistage rocket

References

References

"Rocket Staging".