Perigee Propulsion for Orbital Launch of Nuclear Rockets

Perigee Propulsion for Orbital Launch of Nuclear Rockets
Author :
Publisher :
Total Pages : 36
Release :
ISBN-10 : NASA:31769000421829
ISBN-13 :
Rating : 4/5 (29 Downloads)

Book Synopsis Perigee Propulsion for Orbital Launch of Nuclear Rockets by : Paul G. Johnson

Download or read book Perigee Propulsion for Orbital Launch of Nuclear Rockets written by Paul G. Johnson and published by . This book was released on 1962 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thrust program called perigee propulsion which minimizes gravity loss is analyzed. Thrust is applied intermittently in regions of high velocity (near successive perigees). The increased energy-addition efficiency yields mass ratios approaching those for impulsive velocity change. Corresponding times to reach desired energy are in days but are still small relative to mission times. For specified orbital-launch missions, perigee-propulsion nuclear rocket systems are shown to equal continuous-thrust performance with reactor powers an order of magnitude less than those of continuous-thrust systems. Application and operational aspects of perigee propulsion are discussed.


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