Wiktionary
gravitational assist
n. (alternative form of gravity assist English)
Usage examples of "gravitational assist".
The plasma rocket is cranked up to high mass flow, its specific impulse almost as low as a fission rocket but producing maximum thrust as the assembly creaks and groans through the gravitational assist maneuver.
The plasma rocket is cranked up to maximum mass flow, its specific impulse almost as low as a fission rocket but thrusting at maximum as the assembly creaks and groans through the gravitational assist maneuver.
Three more circuits, with a gravitational assist from the ringed sixth world, and the chosen asteroid would assume the desired trajectory.