Comparison of Trajectory Profiles and Nuclear-propulsion-module Arrangements for Manned Mars and Mars-Venus Missions
Download or Read eBook Comparison of Trajectory Profiles and Nuclear-propulsion-module Arrangements for Manned Mars and Mars-Venus Missions PDF written by Edward A. Jr Willis and published by . This book was released on 1971 with total page 36 pages. Available in PDF, EPUB and Kindle.
| Author | : Edward A. Jr Willis |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 1971 |
| ISBN-10 | : UIUC:30112106691808 |
| ISBN-13 | : |
| Rating | : 4/5 (08 Downloads) |
Book Synopsis Comparison of Trajectory Profiles and Nuclear-propulsion-module Arrangements for Manned Mars and Mars-Venus Missions by : Edward A. Jr Willis
Book excerpt: A brief comparison is made between opposition class (with three impulse return), conjunction class, Venus swing-by to Mars and Mars-Venus double stopover trajectories. Vehicle configurations based on NERVA-I engines of varying life and restart capability are considered. It is found that the opposition and Venus swingby trajectories to Mars yield competitive mission performance; the double stopover entails about 30-percent penalties in initial mass and trip time; and that the minimum-weight vehicle uses a single, restartable engine.
