November Mission Model Discussion: M07 - SPACE WALK EMERGENCY

Welcome to the November Mission Model Discussion! From now until just before Thanksgiving this space will feature ONE part of the FIRST LEGO League INTO ORBIT game challenge per day. The Robot Game is only 1/4th of the overall FIRST LEGO League challenge for teams this year!
This post is meant to be an aid, not a replacement for carefully reading the Challenge Guide and Updates!

Today we will explore M07 - SPACE WALK EMERGENCY

At the Beginning of the Match

The Space Station is secured to the mat East of Base. In the North arm of the Habitation Hub, the
Astronaut, Gerhard, sits in the square with his visor down, his feet down, and his forearms level (outstretched) The loop is verticle to the mat. The Astronaut is facing the Habitation Hub

Required for Scoring

The body of the Astronaut is at least partly in the clear Airlock Chamber at the top of the Habitation Hub. The grey loop is NOT considered part of the Astronaut's body.

Points

0 - No part of the Astronaut's body is inside the Airlock Chamber.
18 - The Astronaut's body is partially, but not completely in the Airlock Chamber.
22 - The Astronaut's body is completely in the Airlock Chamber.

Note from Oregon Head Referee Tom

The loop is not part of the astronaut’s body.

Real World Impact

Every time an astronaut leaves the safety of the Space Station or other craft there is a risk.  Most of the time these individuals are secured to an arm, however; they can have problems. When that is the case a rescue is needed. Without gravity, it's very hard to navigate as a human in open space. While very rare, a malfunction that requires a spacewalking astronaut to return to the station or craft without the aid of the robotic arm can be a very frightening, life-threatening situation. 

Discussion

Gerhard the Astronaut is just to the East of Base, his destination is not far away from his location. But that movement is not an easy one with LEGO components. Is your team using a lifting arm on a motor? A linear slide? What is the best strategy for moving Gerhard to safety?