Download or read book Atmosphere Entries with Vehicle Lift drag Ratio Modulated to Limit Deceleration and Rate of Deceleration Vehicles with Maximum Lift drag Ratio of 0 5 written by Elliott D. Katzen and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis has been made of atmosphere entries for which the vehicle lift-drag ratio was modulated to maintain specified maximum decelerations and/or maximum deceleration rates. The part of the vehicle drag polar used during modulation was from maximum lift coefficient to minimum drag coefficient. The entries were at parabolic velocity and the vehicle maximum lift-drag ratio was 0.5. Two-dimensional trajectory calculations were made for a nonrotating, spherical earth with an exponential atmosphere. The results of the analysis indicate that for a given initial flight-path angle, modulation generally resulted in a reduction of the maximum deceleration to 60% of the unmodulated value or a reduction of maximum deceleration rate to less than 50% of the unmodulated rate. These results were equivalent, for a maximum deceleration of 10g, to lowering the undershoot boundary 24 miles with a resulting decrease in total convective heating to the stagnation point of 22%. The maximum convective heating rate was increased 18%. (Author).

Download or read book Atmosphere Entries with Vehicle Lift drag Ration Modulated to Limit Deceleration and Rate of Deceleration written by Elliott D. Katzen and published by . This book was released on 1961 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index to NASA Technical Publications written by United States. National Aeronautics and Space Administration and published by . This book was released on 1960-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of the Royal Aeronautical Society written by and published by . This book was released on 1962 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Use of Drag Modulation to Limit the Rate at which Deceleration Increases During Nonlifting Entry written by Lional L. Levy and published by . This book was released on 1961 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book Gas Dynamics in Space Exploration written by United States. National Aeronautics and Space Administration and published by . This book was released on 1963 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Paper written by and published by . This book was released on 1959 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Reports written by and published by . This book was released on 1962-10 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ARS Journal written by American Rocket Society and published by . This book was released on 1961 with total page 1832 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AIAA Bulletin written by and published by . This book was released on 1964 with total page 2244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ARS Journal written by and published by . This book was released on 1959 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning Oct. 1959 some issues include "Russian supplement."

Download or read book The Use of Aerodynamic Lift During Entry Into the Earth s Atmosphere written by Lester Lees and published by . This book was released on 1958 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: By employing aerodynamic lift during entry into the Earth's atmosphere at either orbital or 'escape' velocity, the range of allowable entry angles for a prescribed peak deceleration is greatly increased, while the total heat energy transferred to the vehicle can be held to about the same value as for a nonlifting vehicle. Only modest lift-drag ratios are required beyond peak G to prevent the decelera tion from exceeding the peak value, or to prevent the vehicle from skipping out of the Earth's atmosphere. Thus, the difficult guidance and control problem is greatly alleviated; in particular, for return from the Moon or other planets the necessity for multiple-pass drag braking is eliminated. (Author).

Download or read book Investigation of Landing Point Control of Re entry Vehicles Utilizing Variable Area Aerodynamic Decelerators Incorporating Lift written by Avco-Everett Research Laboratory and published by . This book was released on 1962 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Journal of Space Technology and Science written by and published by . This book was released on 1987 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index Aeronauticus written by and published by . This book was released on 1965-08 with total page 780 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 1962 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: