Sierra Space Books Air Force Contract for Maturation of Advanced Upper Stage Engine
Sierra Space will advance the development of a 35,000 lbf thrust upper stage engine under a 27-month, $22.6 million firm-fixed-price contract from the U.S. Air Force. Work for the maturation of Vortex advanced upper stage engine or VR35K-A will involve designing flight-weight engine components through the use of component and integrated breadboard engine test data, […] More