Wickman Spacecraft & Propulsion Company (WSPC) is designing a responsive and low cost SLV that uses a unique solid rocket motor that gives the SLV versatile performance and low cost. The SLV's propellant is WSPC's high performance, environmentally friendly, low cost, phase stabilized ammonium nitrate (PSAN) space booster propellant. Its unique SLV solid rocket motors provide real time controllable thrust with a unique expansion-deflection (E-D) exit cone. The E-D exit cone concept has been verified by CFD analysis and solid rocket motor static firings (shown lower left). The E-D exit cone ... provides optimum expansion of the exhaust gases at all altitudes. This enables WSPC's SLV to be ground launched or air launched (shown right).