Air & Space Magazine Propulsor Testing In a wind tunnel at NASA’s Glenn Research Center, engineers test a fan and inlet design, called a propulsor, that could use four to eight percent less fuel than today’s advanced aircraft. NASA March 31, 2017 Get our newsletter! Get our newsletter! You Might Also Like VAB Readies for SLS August 5, 2016 Namib Sand Dunes June 19, 2017 Station Nightlights May 12, 2014 Bring the Flow July 31, 2015 Orange Aurora November 13, 2015 Get the latest stories in your inbox every weekday. Email Powered by Salesforce Marketing Cloud (Privacy Notice / Terms & Conditions)