TY - RPRT TI - Advanced Development Program for a 625 lbf thrust engine for Ares First Stage Roll Control System AU - Dawson, Matt AU - Chenevert, Blake AU - Brewster, Gerry AU - Frei, Tom AU - Bullard, Brad AU - Fuller, Ray PY - 2009 UR - https://ntrs.nasa.gov/citations/20100032025 ID - 20100032025 ER -