TY - RPRT TI - Hyper-X Flight Engine Ground Testing for X-43 Flight Risk Reduction AU - Huebner, Lawrence D. AU - Rock, Kenneth E. AU - Ruf, Edward G. AU - Witte, David W. AU - Andrews, Earl H., Jr. PY - 2001 UR - https://ntrs.nasa.gov/citations/20010047675 ID - 20010047675 ER -