On Friday, May 6th, the time had finally come and the drive train of the e-Sling could be installed in the aircraft. The test campaign was successfully completed in advance. The drive train was installed in the test container and various load cycles could be run. When everyone was ready for the conversion, SRF Einstein accompanied the events throughout the day. An Einstein episode on the subject of 'Electromobility' will be published next October, where the e-Sling project will also have an appearance.