Journey to Space in a Vacuum Chamber Posted on May 19, 2015 by Frank Cisco Supporting the testing of electric propulsion and power systems, VF-5 has the highest pumping speed of any electric propulsion test facility in the world. via NASA http://ift.tt/1S6QzK1 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Related