ASSEMBLING AND TESTING A BREADBOARD ENGINE MADE UP OF 3-D ENGINE COMPONENTS, PROPULSION ENGINEER NICK CASE (LEFT FRONT) PHOTOGRAPHS THE INJECTOR, WHILE RYAN WALLS (FAR RIGHT), THE TEST CONDUCTOR LOOKS ON. MARTY CALVERT (LEFT BACK) AND BRAD BULLARD (RIGHT BACK) HELPED DESIGN THE TURBOPUMP AND INJECTOR, TWO OF THE MOST COMPLEX ENGINE PARTS TESTED.

2. ENGINEERS AND TECHNICIANS PREPARE FOR AN UPCOMING HOT-FIRE TEST OF A ROCKET INJECTOR MANUFACTURED USING ADDITIVE MANUFACTURING, OR 3-D PRINTING…(L TO R) WILLIE PARKER, INFOPRO TECHNICIAN, BRAD BULLARD, NASA, NICK CASE, NASA, AND RANDALL MCALLISTER, INFOPRO TECHNICIAN