Development of Simulation Means for a Gravity Forces

As known, gravity on other planets, their satellites, small planets essentially defers from Earth gravity. Reliability of spacecrafts is largely provided by their on-ground tests during which various space factors, in particular, low gravity or weightlessness are simulated. To simulate gravity of other planets while performing on-ground tests of planetary rovers and other space systems of various applications (satellittes, multisectional, mechanisms) mechanical systems have been developed (unloading devices — UD). Simulators are presented in progress. Various design of simulators as well as their technical characteristics have been considered. Promising concept for simulators creation based on a simulator family developed (more than 50 types) is of specialists interest.