Aerojet announced on November 28th that it had completed the preliminary design review of a turbopump assembly. The assembly is to be used in a ground demonstrator of a new liquid rocket engine, as part of Aerojet’s Next Generation Engine (NGE) program. The review was conducted with Aerojet’s partner, Florida Turbine Technologies (FTT), in front of a panel of third-party turbomachinery experts. [...]