The general simulation software for dynamic process of spacecraft propulsion system engine is formulated.

The use of space technology for military purposes has created a series of international political problems, among which the problem about peace and war is outstanding.

With the rapid development of modern space technology and the need of war, the struggle to control the sky, after the struggles to control the sea, the sky and electromagnetism, becomes a new focus in modern war.

This paper firstly introduced the survey of developing space technology in India.

This article summarizes the development,the application and the newly-made progress of hydrogen peroxide on rocket propulsion technology.

At the background of new propulsion technology,such as microwave,laser,based on the aircraft particle dynamics model,using the sequential quadratic programming arithmetic to design and optimize the air craft s climb and loitering flight trajectories and the optimized trajectories are given by numerical simulation.

With the suggestion of the laser propulsive technology and the development of the high energy laser technology, laser propelled vehicle will solve difficult problems, such as how to decrease the cost of rocket and how to raise zhe padload.

The dissimilar metals(such as Titanium alloy and stainless steel) thin-wall small-diameter tube structrues in aerospace propulsion system were bonded,using high frequency induction brazing process.