THE gravity assist (GA) is a classical technique to change the path and energy of a
spacecraft flying close to a celestial body, which only needs gravitational forces from …

The study of aero-gravity-assisted maneuvers around Venus is the focus of the present
paper. These are maneuvers that combine the passage by the gravity field of the planet with …

The present paper surveys the more recent techniques related to the swing-by maneuver,
where a spacecraft changes its energy and angular momentum by passing close to celestial …

Thse powered aero-gravity-assist is an orbital maneuver that combines three basic
components: a gravity-assist with a passage by the atmosphere of the planet during the …

In a swing-by maneuver, the variation of energy of the spacecraft is controlled by the angle,
velocity, and distance of approach. These parameters are defined by the incoming trajectory …

In this work, it is shown how a spacecraft equipped with a thrust and subjected to a drag
force can be bounded at specific altitudes as function of the parameters of the thrust. It is …

A maneuver called “Aerogravity Assisted” is known in the literature to increase the energy
gains given by a close approach between a spacecraft and a planet using the atmosphere of …