Orbital ATK (Dulles, VA, US) reported on Nov. 7 that it has successfully completed an important milestone in developing advanced solid rocket propulsion and other technologies to be used in a new generation of intermediate- and large-class space launch vehicles. The company is in early production of development hardware for its Next Generation Launch (NGL) system, and on Oct. 27 successfully completed the structural acceptance test on the first motor high-strength composite case for this program.

The applied structural loads during the test demonstrated more than 110% of maximum expected motor operating pressure and 110% of operational/flight and pre-launch compression/tensile line loads. This full-scale motor case segment will be cast with inert solid rocket propellant in early 2018 and shipped to the launch site for check-out of ground operations.

“NGL is one of Orbital ATK’s top growth initiatives,” says Scott Lehr, president of Orbital ATK’s Flight Systems Group. “This milestone clearly shows the progress being made by the hundreds of engineers and technicians in Utah and Arizona who are developing the NGL system.”