Download or read book Planetary Flight Handbook Part 6 Mars Stopover Missions Using Venus Swingbys written by and published by . This book was released on 1968 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Space Flight Handbooks Mars stopover mission using Venus swingbys written by United States. National Aeronautics and Space Administration and published by . This book was released on 1968 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Round trip Trajectories with Stopovers at Both Mars and Venus written by Edward A. Willis and published by . This book was released on 1970 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Planetary Flight Handbook written by United States. National Aeronautics and Space Administration and published by . This book was released on 1968 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Note written by and published by . This book was released on 1971 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Planetary Flight Handbook written by and published by . This book was released on 1963 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Use of Orbit to orbit Shuttles for Hyperbolic Rendezvous with Returning Planetary Spacecraft written by David R. Brooks and published by . This book was released on 1971 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Earth-return mode for interplanetary spacecraft via hyperbolic rendezvous is described. In this mode an orbit-to-orbit shuttle leaves a circular Earth orbit, performs a rendezvous with a returning interplanetary spacecraft as it approaches Earth on a hyperbolic trajectory, docks and performs desired transfers, and deboosts back into a circular Earth orbit while the spacecraft continues on its hyperbolic path. Two basic flight modes are proposed, and the equations for analyzing the maneuvers are derived. The initial mass in Earth orbit required fora rendezvous system utilizing chemical or nuclear propulsion compares favorably with the initial masses in Earth orbit chargeable to transport of some conventional Earth-return systems to a target planet and back. In addition, the maneuver has considerable merit as a backup and rescue system. For typical missions, orbit-to-orbit shuttles having initial masses in Earth orbit of up to 500 000 kg are required.

Download or read book Comparison of Trajectory Profiles and Nuclear propulsion module Arrangements for Manned Mars and Mars Venus Missions 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. 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.

Download or read book A Selected Listing of NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1969 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1968 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book The National union catalog 1968 1972 written by and published by . This book was released on 1973 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Records of Achievement written by and published by . This book was released on 1983 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Data Bases and Data Base Systems Related to NASA s Aerospace Program written by United States. National Aeronautics and Space Administration Scientific and Technical Information Branch and published by . This book was released on 1981 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog United States Public Documents written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page 1716 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

Download or read book Planetary Flight Handbook written by Lockheed Missiles and Space Company and published by . This book was released on 1963 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA SP written by and published by . This book was released on 1983 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: