Site Accessibility and Characteristic Velocity Requirements for Direct-descent Lunar Landings

Site Accessibility and Characteristic Velocity Requirements for Direct-descent Lunar Landings
Author :
Publisher :
Total Pages : 36
Release :
ISBN-10 : UIUC:30112106879635
ISBN-13 :
Rating : 4/5 ( Downloads)

Book Synopsis Site Accessibility and Characteristic Velocity Requirements for Direct-descent Lunar Landings by : Vernon J. Weyers

Download or read book Site Accessibility and Characteristic Velocity Requirements for Direct-descent Lunar Landings written by Vernon J. Weyers and published by . This book was released on 1961 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A direct descent is one in which the main descent propulsion system burns continuously from lunar approach to touchdown. The characteristic velocity requirement for direct lunar descents is presented as a function of the landing site location relative to the normal impact point. Results are included for translunar trip times of 60, 75, and 90 hours, for specific impulses representative of both Earth storable and cryogenic propulsion systems, for landing sites located anywhere on the lunar surface, and for ignition thrust-to-Earth weight ratios between 0.12 and 10.0. The data presented are useful in determining approximate performance capability and in evaluating tradeoffs during preliminary mission planning studies.


Site Accessibility and Characteristic Velocity Requirements for Direct-descent Lunar Landings Related Books

Site Accessibility and Characteristic Velocity Requirements for Direct-descent Lunar Landings
Language: en
Pages: 36
Authors: Vernon J. Weyers
Categories: Low temperature engineering
Type: BOOK - Published: 1961 - Publisher:

DOWNLOAD EBOOK

A direct descent is one in which the main descent propulsion system burns continuously from lunar approach to touchdown. The characteristic velocity requirement
NASA Technical Note
Language: en
Pages: 518
Authors:
Categories:
Type: BOOK - Published: 1970 - Publisher:

DOWNLOAD EBOOK

Scientific and Technical Aerospace Reports
Language: en
Pages: 440
Authors:
Categories: Aeronautics
Type: BOOK - Published: 1995 - Publisher:

DOWNLOAD EBOOK

Technical Report - Jet Propulsion Laboratory, California Institute of Technology
Language: en
Pages: 12
Authors: Jet Propulsion Laboratory (U.S.)
Categories: Jet propulsion
Type: BOOK - Published: - Publisher:

DOWNLOAD EBOOK

U.S. Government Research & Development Reports
Language: en
Pages: 1342
Authors:
Categories: Science
Type: BOOK - Published: 1970 - Publisher:

DOWNLOAD EBOOK