1.In IBM-PC and its compatible computers, the data base management system of projectile/rocket aerodynamics is eestablished by using dBASE Ⅲ software of data base management system,and its structure and function are also expounded.
2.Especially, one kind method--Collaborative Optimization(CO) is discussed. By applying CO in two function problems, the performance of CO is analyzed and improved. In the end of this part, CO is applied in conceptual design of launch rocket.