Which of the following statement is incorrect regarding the TransLunar Injection (TLI)?
1
TransLunar Injection (TLI) is a propulsive maneuver used to set a spacecraft on a trajectory that will cause it to arrive at the Moon.
2
TLI is generally used by spacecraft leaving the Earth's orbit and headed for the Moon. This includes unmanned missions only.
3
TLI is designed to be energy efficient, taking advantage of the gravitational forces of both the Earth and the Moon, and the initial momentum gained from launching from the Earth.
4
TLI often utilizes a Hohmann Transfer Orbit, which is an elliptical orbit used to transfer between two circular orbits of different radii in the same plane.