Rocket Propulsion Elements

George p. Sutton , oscar biblarz
The rocket propulsion business in the United States of America appears to be chang-ing. In the past, and also currently, the business has been planned, financed, and coordinated mostly by the Department of Defense and NASA. Government fund-ing, government test or launch facilities, and other government support was provided. As it happens in all fields old-time companies have changed ownership, some have been sold or merged, some went out of business, some reduced the number of employ-ees, and other companies have entered the field. New privately financed companies have sprung up and have developed their own rocket propulsion systems and flight vehicles as well as their own test, manufacturing, and launch facilities. These new companies have received some government contracts. Several privately owned com-panies have developed on their own useful space vehicles and rocket propulsion systems that were not originally in the government’s plan. Although business cli-mate changes noticeably influence rocket activities, it is not the purpose of this book to describe such business effects, but to present rocket propulsion principles and to give recent information and data on technical and engineering aspects of rocket propulsion systems.

جهت استعلام قيمت و سفارش چاپ اين محصول لطفا با انتشارات گنج حضور تماس حاصل فرماييد