MAVERIC (Marshal Aerospace Vehicle Representation in C) is a vehicle flight simulation program, which facilitates the rapid development of flight simulations, from low to high fidelity, for launch vehicles and spacecraft. MAVERIC was designed to be a general purpose tool capable of simulating vehicles of any conceivable configuration and mission scenario. It accommodates multi-staged vehicles, powered serially or in parallel, with multiple engines, tanks, cargo elements, sensors and reaction control system (RCS) thrusters. Propulsion may be jet engines or conventional rocket engines, using either liquid or solid propellants. Simulations have been developed for (1) a Lockheed-Martin Two-Stage-To-Orbit reusable concept, (2) a Lockheed-Martin Orbital Space Plane, (3) the X-37 vehicle, (4) a NASA Langley two-stage bimese reusable concept, (4) a Saturn V vehicle, which serves as a generic non-proprietary simulation design template and (5) the ARES crew and cargo launch vehicles presently under development and planned to replace the Shuttle Transportation System.

The Hybrid Motor Controller Software is a versatile control code that possesses many desirable features that were not available in previous in-house controllers. The ultimate goal in designing this code was to achieve simultaneous motoring and rotor levitation control of a hybrid rotor, at a loop time of 50 microseconds. Using a 400-MHz Pentium processor, the code will control a two-axis bearingless switched reluctance motor at a code execution loop time of 40 microseconds. In addition, it will levitate and control (with only minor modification to the input / output wiring) a five-axis and / or a four-axis bearingless switched reluctance motor system. The code can be expanded to handle additional magnetic bearings and motors. Stable rotor levitation and control of any of the motor / magnetic bearing system mentioned above are accomplished through appropriate key presses or mouse clicks to modify parameters, such as stiffness, damping, bias, and motor speed.

In modern transport aircraft, the flight management computer (FMC) has evolved from a flight planning aid to an important hub for pilot information and origin-to-destination op-timization of flight performance. Current trends indicate increasing roles of the FMC in aviation safety, aviation security, increasing airport capacity, and improving environmental impact from aircraft. Related research conducted at the Langley Research Center (LaRC) often requires functional extension of a modern, full-featured FMC. Ideally, transport simu-lations would include an FMC simulation that could be tailored and extended for experi-ments. However, due to the complexity of a modern FMC, a large investment (millions of dollars over several years) and scarce domain knowledge are needed to create such a simula-tion for transport aircraft. As an intermediate alternative, the Flight Research Services Di-rectorate (FRSD) at LaRC created a set of reusable software products to extend flight man-agement functionality upstream of a Boeing-757 FMC, transparently simulating or sharing its operator interfaces. The paper details the design of these products and highlights their use on NASA projects.