New Shepard 3 (NS3) was modified for increased reusability and improved thermal protection; it includes a redesigned propulsion module and the inclusion of new access panels for more rapid servicing and improved thermal protection. "NS3" is the third propulsion module built. It was completed and shipped to the launch site by September 2017, although parts of it had been built as early as March 2016. Flight tests began in 2017 and continued into 2019. The new Crew Capsule 2.0, featuring windows, is integrated to the NS3. NS3 will only ever be used to fly cargo; no passengers will be carried.