Dual Thrust Motor

Dual Thrust Motor

A solid-propellant rocket engine built to obtain dual thrust.
In a single chamber unit the booster propellant grain may be bonded to the sustainer grain, with the thrust level regulated by mechanically changing the nozzle throat area or by using different grain compositions or configurations. In a dual-chamber unit, the separate chambers may be arranged in tandem, or concentrically.

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use