Partial Gravity Simulator

The Partial Gravity Simulator, also known as POGO, consists of servos, air bearings and gimbals to provide accurate simulations of reduced gravity. It is used for astronaut training and for evaluating their ability to perform tasks in simulated partial and microgravity.


This seat and gimbal assembly supports the test subject while performing human locomotion studies and training exercises.
The vertical servo and horizontal air bearing rail can be seen here mounted to the 30 foot tall A-frame. Also visible are the air supply and electrical umbilicals running from the overhead support to the top of the vertical servo.

Video demonstration of POGO simulating lunar gravity.

File size is 2.1m.

If you don't already have the QuickTime player, download it at:

Page imported from NASA Johnson Space Vehicle Mockup Facility webpage.
November 2010