Use Of Lift For Deceleration And Range Control For Re Entry Of Space Vehicles

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Use of Lift for Deceleration and Range Control for Re-entry of Space Vehicles

Author : Arthur J. Schwaniger
Publisher :
ISBN 13 :
Total Pages : 29 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Use of Lift for Deceleration and Range Control for Re-entry of Space Vehicles by : Arthur J. Schwaniger

Download or read book Use of Lift for Deceleration and Range Control for Re-entry of Space Vehicles written by Arthur J. Schwaniger and published by . This book was released on 1960 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: This memorandum presents the results to date of a study of the problem of re-entry into the earth's atmosphere, by a vehicle returning from a space flight mission. Various re-entry conditions are studied using aerodynamic lift for deceleration and range control. Particular attention is given to cases where re-entry velocity is equal to escape velocity. The report shows that for non-lifting trajectories with re-entry velocity of 11,000 m/s (approximately escape velocity) only 0.4 degree variation in re-entry path angle is allowable if peak deceleration is to be held less than 10 g's. Range from re-entry to impact is shown to be variable up to 10,000 km for re-entry with escape velocity. (Author).

NASA Technical Note

Author :
Publisher :
ISBN 13 :
Total Pages : 462 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA Technical Note by :

Download or read book NASA Technical Note written by and published by . This book was released on 1962 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Effect of Lift on Entry Corridor Depth and Guidance Requirements for the Return Lunar Flight

Author : Thomas J. Wong
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis The Effect of Lift on Entry Corridor Depth and Guidance Requirements for the Return Lunar Flight by : Thomas J. Wong

Download or read book The Effect of Lift on Entry Corridor Depth and Guidance Requirements for the Return Lunar Flight written by Thomas J. Wong and published by . This book was released on 1961 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Entry corridors for manned vehicles returning from the moon are defined consistent with requirements for avoiding radiation exposure and for limiting values of peak deceleration. It was found that the use of lift increases the depth of the entry corridor and, hence, reduces guidance accuracy requirements. Mid-course guidance requirements appear to be critical only for the flight-path angle. Increasing the energy of the transfer orbit increases the required guidance for the flight-path angle. To correct a trajectory for an error in target perigee point, it was found that application of the corrective thrust essentially parallel to the local horizontal produces the maximum change in perigee altitude for a given increment of velocity. It was also found that the energy required to effect a given change in perigee altitude is not strongly dependent on the energy of the orbit, but it was found to vary inversely with range measured from the center of the earth. For this reason, it is important to detect and correct any errors in approach trajectory at the largest possible distance from the earth.

Comparison of Two Maneuvers for Longitudinal Range Control During Atmospheric Entry

Author : Lionel L. Levy
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Comparison of Two Maneuvers for Longitudinal Range Control During Atmospheric Entry by : Lionel L. Levy

Download or read book Comparison of Two Maneuvers for Longitudinal Range Control During Atmospheric Entry written by Lionel L. Levy and published by . This book was released on 1962 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Optimization of Lifting Re-entry Vehicles

Author : Wilbur Leason Hankey
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Optimization of Lifting Re-entry Vehicles by : Wilbur Leason Hankey

Download or read book Optimization of Lifting Re-entry Vehicles written by Wilbur Leason Hankey and published by . This book was released on 1963 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerodynamic lift is used during re-entry to provide range maneuverability so that a precise site can be selected and a horizontal landing capability can be provided. Maximum maneuverability may be achieved by modulating the hypersonic lift-to drag ratio (L/D). In this study the lifting re entry configuration was optimized to maximize hypersonic L/D within the heating, stability, and landing constraints. Eleven pertinent constraint equations were formulated, and numerical calcula tions of the complete aerodynamic characteristics and configurational geometry were determined. The IBM 7090 computer was used to solve the 11 constraint equations through an iteration tech nique and to perform the maximization process. Optimum configurational geometries were evaluated for three wing loadings at vehicle weights of 10,000 and 100,000 pounds. Results show that higher L/D values can be achieved with low aspect ratio, low wing loadings, and large scale vehi cles. The complete geometry for one of the typical optimums is shown as an example.

The Variation and Control of Range Traveled in the Atmosphere by a High-drag Variable-lift Entry Vehicle

Author : Donald C. Cheatham
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis The Variation and Control of Range Traveled in the Atmosphere by a High-drag Variable-lift Entry Vehicle by : Donald C. Cheatham

Download or read book The Variation and Control of Range Traveled in the Atmosphere by a High-drag Variable-lift Entry Vehicle written by Donald C. Cheatham and published by . This book was released on 1960 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Guidance and Control II

Author : Robert Langford
Publisher : Elsevier
ISBN 13 : 032314182X
Total Pages : 1014 pages
Book Rating : 4.3/5 (231 download)

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Book Synopsis Guidance and Control II by : Robert Langford

Download or read book Guidance and Control II written by Robert Langford and published by Elsevier. This book was released on 2012-12-02 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guidance and Control - II focuses on the techniques and processes involved relative to the control of rockets, missiles, and other space vehicles. Divided into seven parts with 36 chapters, the book focuses first on active and passive control for space vehicles; advances in attitude control; the stabilization of earth satellites; and the theoretical and practical considerations of solar pressure attitude control for interplanetary space vehicles. The compilation also notes the use of gyrostabilizers on satellites, including the use of two-pulse attitude control and bank angle control for an asymmetric spinning satellite. Experiments on gyro rotor imbalance on a stable platform and various navigation and guidance systems are also presented. The book also looks at the use of sensors, the stellar techniques for interplanetary flights, and control of space vehicles. The text also gives emphasis on various mathematical equations used to measure fuel optimization in orbital rendezvous. Guidance techniques in lunar landing are also discussed. The compilation is important for readers interested in studying the methods, principles, and processes involved in the control of space vehicles.

Space Rendez[v]ous, Rescue and Recovery

Author : Defense Documentation Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.0/5 (864 download)

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Book Synopsis Space Rendez[v]ous, Rescue and Recovery by : Defense Documentation Center (U.S.)

Download or read book Space Rendez[v]ous, Rescue and Recovery written by Defense Documentation Center (U.S.) and published by . This book was released on 1963 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Safety Design for Space Operations

Author : Paul D. Wilde
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128054905
Total Pages : 180 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Safety Design for Space Operations by : Paul D. Wilde

Download or read book Safety Design for Space Operations written by Paul D. Wilde and published by Elsevier Inc. Chapters. This book was released on 2013-03-24 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the beginning of humankind’s use of space, human-made objects have re-entered the Earth’s atmosphere and experienced the severe aerodynamic heating and loads characteristic of high-speed atmospheric re-entry. Some of these reentries have generated fragments that survived to impact the Earth’s surface and be hazardous to people and damaging to property. This chapter addresses the safety of both broad types of space hardware re-entries: either controlled so impact is targeted in a specific area, or uncontrolled, where re-entry can occur anywhere within the latitude band defined by the orbital inclination of the reentering object. The overall objective of this chapter is to help prepare safety engineers to answer the ultimate questions involved in the design of safety re-entry operations.

Re-entry Vehicle Dynamics

Author : Frank J. Regan
Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Re-entry Vehicle Dynamics by : Frank J. Regan

Download or read book Re-entry Vehicle Dynamics written by Frank J. Regan and published by . This book was released on 1984 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effects of Peak Deceleration on Range Sensitivity for a Modulated-lift Reentry at Supercircular Speeds

Author : Charlie M. Jackson
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (689 download)

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Book Synopsis Effects of Peak Deceleration on Range Sensitivity for a Modulated-lift Reentry at Supercircular Speeds by : Charlie M. Jackson

Download or read book Effects of Peak Deceleration on Range Sensitivity for a Modulated-lift Reentry at Supercircular Speeds written by Charlie M. Jackson and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Method for Longitudinal and Lateral Range Control for a High-drag Low-lift Vehicle Entering the Atmosphere of a Rotating Earth

Author : John Worth Young
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis A Method for Longitudinal and Lateral Range Control for a High-drag Low-lift Vehicle Entering the Atmosphere of a Rotating Earth by : John Worth Young

Download or read book A Method for Longitudinal and Lateral Range Control for a High-drag Low-lift Vehicle Entering the Atmosphere of a Rotating Earth written by John Worth Young and published by . This book was released on 1961 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study has been made of a method for controlling the trajectory of a high-drag low-lift entry vehicle to a desired longitude and latitude on the surface of a rotating earth. By use of this control technique the vehicle can be guided to the desired point when the present position and heading of the vehicle are known and the desired longitude and latitude are specified. The present study makes use of a single reference trajectory and an estimate of the lift and side-force capabilities of the vehicle. This information is stored in a control-logic system and used with linear control equations to guide the vehicle to the desired destination. Results are presented of a number of trajectory studies which describe the operation of the control system and illustrate its ability to control the vehicle trajectory to the desired landing area.

Space Flight and Re-Entry Trajectories

Author : Paul A. Libby
Publisher : Springer Science & Business Media
ISBN 13 : 3709154707
Total Pages : 267 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Space Flight and Re-Entry Trajectories by : Paul A. Libby

Download or read book Space Flight and Re-Entry Trajectories written by Paul A. Libby and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this and a following issue (Vol. VIII, 1962, Fasc. 2-3) of "Astronautica Acta" there will appear the papers presented at the first international symposium sponsored by the International Academy of Astronautics of the International Astronautical Federation. The theme of the meeting was "Space Flight and Re-Entry Trajectories." It was held at Louveciennes outside of Paris on June 19-21, 1961. Sixteen papers by authors from nine countries were presented; attendees numbered from 80 to 100. The organizing committee for the symposium was as follows: Prof. PAUL A. LIBBY, Polytechnic Institute of Brooklyn, U.S.A., Chairman; Prof. LuiGI BROGLIO, University of Rome, Italy; Prof. B. FRAEIJS DE VEUBEKE, University of Liege, Belgium; Dr. D. G. KING-HELE, Royal Aircraft Establishment, Farnborough, Rants, United Kingdom; Prof. J. M. J. KooY, Royal Military School, Breda, Netherlands; Prof. JEAN KovALEVSKY, Bureau des Longitudes, Paris, France; Prof. RuDOLF PESEK, Academy of Sciences, Prague, Czechoslovakia. The detailed arrangements for the meeting were made in a most satisfactory manner by Dr. FRANK J. MALINA, Deputy Director of IAA and Mr. A. R. WEILLER, Acting Secretary of IAA. Prof. THEODORE VON KARMAN, Director of IAA, in his remarks closing the symposium indicated his satisfaction at the interest being shown in "the science of the future." The papers which follow will make a permanent contribution to the literature of this science.

Practical Aspects of Reentry Problems

Author : Antonio Ferri
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Practical Aspects of Reentry Problems by : Antonio Ferri

Download or read book Practical Aspects of Reentry Problems written by Antonio Ferri and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Entry trajectories for vehicles without and with lift are investigated. The existence and the significance of the second peak deceleration in reentry trajectories are presented. The second peak may be greater than the first one. For a given entry velocity, the first peak deceleration can be a discontinuous function of entry angle. With proper lift modulation of the body-type vehicle, i.e. by changing the angle of attack of the vehicle, the range of the entry angle for non-skip trajectories can be increased significantly, while the first peak deceleration remains less than 5 times the gravitational acceleration. A constant elevation maneuver is presented and its effectiveness in reducing the second peak deceleration is explained. This maneuver, followed by a constant lift modulation, permits the control of the point of landing over a wide range. The practical application of the rate of change of deceleration in deciding the proper lift modulation is demonstrated. (Author).

U.S. Government Research Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1076 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis U.S. Government Research Reports by :

Download or read book U.S. Government Research Reports written by and published by . This book was released on 1964 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Flight Study of a Power-off Landing Technique Applicable to Re-entry Vehicles

Author : Richard S. Bray
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis A Flight Study of a Power-off Landing Technique Applicable to Re-entry Vehicles by : Richard S. Bray

Download or read book A Flight Study of a Power-off Landing Technique Applicable to Re-entry Vehicles written by Richard S. Bray and published by . This book was released on 1960 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Effect of Lift on Entry Corridor Depth and Guidance Requirements for the Return Lunar Flight

Author : Thomas J. Wong
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (71 download)

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Book Synopsis The Effect of Lift on Entry Corridor Depth and Guidance Requirements for the Return Lunar Flight by : Thomas J. Wong

Download or read book The Effect of Lift on Entry Corridor Depth and Guidance Requirements for the Return Lunar Flight written by Thomas J. Wong and published by . This book was released on 1961 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: Entry corridors for manned vehicles returning from the moon are defined consistent with requirements for avoiding radiation exposure and for limiting values of peak deceleration. It was found that the use of lift increases the depth of the entry corridor and, hence, reduces guidance accuracy requirements. Mid-course guidance requirements appear to be critical only for the flight-path angle. Increasing the energy of the transfer orbit increases the required guidance for the flight-path angle. To correct a trajectory for an error in target perigee point, it was found that application of the corrective thrust essentially parallel to the local horizontal produces the maximum change in perigee altitude for a given increment of velocity. It was also found that the energy required to effect a given change in perigee altitude is not strongly dependent on the energy of the orbit, but it was found to vary inversely with range measured from the center of the earth. For this reason, it is important to detect and correct any errors in approach trajectory at the largest possible distance from the earth.