In this paper we present a framework for rapid prototyping of airplane designs as an example of the benefits of integrating simulation, gaming, and design interfaces into a cohesive package, which we have labeled the Integrated Flight Simulation and Design framework. We discuss the design of this framework and detail the progress of a simple prototype implementation. We discuss the advantages close integration of the simulation and design components of aerospace vehicle design has for required time and cost of the prototyping process. Categories and Subject Descriptors I.6.5 [Simulation and Modeling]: Model Development