Mars Entry Example MERS engine to standby lanetary approach switch to inertial rotate to entry-orient hold attitude Separate lander from cruise stage separate ander in case of failure of primary latch fire backup pyro latch (Courtesy of Mitch Ingham. Used with permission.Mars Entry Example engine to standby planetary approach separate lander switch to inertial nav rotate to entry-orient & hold attitude • cruise stage lander stage Separate lander from cruise stage: in case of failure of primary latch, fire backup pyro latch (Courtesy of Mitch Ingham. Used with permission.)