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15 Mach accelerometer achieve aerodynamic air-data altitude and cross-range angle of attack angle-of angle-of-attack angle-of-sideslip atmospheric disturbances axis system ballistic origin bank angle command bank-to-dive centrifugal relief climb-rate closed-loop poles command limit complementary filter constant dynamic pressure control design control system cross-range error cruise flight conditions density variation descent-rate drag elevon equation factor and bank feedback gain flight condition constraints flight dynamic frequency and damping ft/sec guidance commands guidance system hypersonic flight hypersonic vehicle impact the maneuver inner-loop controls Lallman Langley Research Center Laplace transform lateral acceleration commands level flight load factor limits low-pass filter Mach 10 Mach Mach 15 Mach 20 Mach 6 Mach Mach numbers maintain constant dynamic maximum NASA NASP neuver nmax normal load factor outer loops perturbations required to maintain response rudder deflection shown in figure sideslip angle simula simulation single-stage-to-orbit throttle control law thrust tion transfer function turbations velocity vertical and lateral