Experimental And Analytical Determination Of Stability Parameters For A Balloon Tethered In A Wind
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| Author | : L. Tracy Redd |
| Publisher | : |
| Total Pages | : 55 |
| Release | : 1973 |
| Genre | : Stability |
| ISBN | : |
Download Experimental and Analytical Determination of Stability Parameters for a Balloon Tethered in a Wind Book in PDF, Epub and Kindle
Experimental and analytical techniques for determining stability parameters for a balloon tethered in a steady wind are described. These techniques are applied to a particular 7.64-meter-long balloon, and the results are presented. The stability parameters of interest appear as coefficients in linearized stability equations and are derived from the various forces and moments acting on the balloon. In several cases the results from the experimental and analytical techniques are compared and suggestions are given as to which techniques are the most practical means of determining values for the stability parameters.
| Author | : L. Tracy Redd |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 1973 |
| Genre | : Balloons |
| ISBN | : |
Download Experimental and Analytical Determination of Stability Parameters for a Balloon Tethered in a Wind Book in PDF, Epub and Kindle
| Author | : L. Tracy Redd |
| Publisher | : |
| Total Pages | : 120 |
| Release | : 1973 |
| Genre | : Balloons |
| ISBN | : |
Download Stability Analysis and Trend Study of a Balloon Tethered in a Wind, with Experimental Comparisons Book in PDF, Epub and Kindle
A stability analysis and trend study for a balloon tethered in a steady wind are presented. The linearized, stability-derivative type analysis includes balloon aerodynamics, buoyancy, mass (including apparent mass), and static forces resulting from the tether cable. The analysis has been applied to a balloon 7.64 m in length, and the results are compared with those from tow tests of this balloon. This comparison shows that the analysis gives reasonable predictions for the damping, frequencies, modes of motion, and stability boundaries exhibited by the balloon. A trend study for the 7.64-m balloon was made to illustrate how the stability boundaries are affected by changes in individual stability parameters. The trends indicated in this study may also be applicable to many other tethered-balloon systems.
| Author | : |
| Publisher | : |
| Total Pages | : 538 |
| Release | : 1973 |
| Genre | : |
| ISBN | : |
Download NASA Technical Note Book in PDF, Epub and Kindle
| Author | : Don E. Jackson |
| Publisher | : |
| Total Pages | : 56 |
| Release | : 1975 |
| Genre | : Balloons |
| ISBN | : |
Download Motions of a Payload on a Tethered, Aerodynamic-shape Balloon Using Various Cable Lengths Book in PDF, Epub and Kindle
A series of flight tests of a classic British barrage (kite) balloon was made at White Sands Missile Range in a variety of wind conditions and tether lengths. The report presents the motions of a payload suspended beneath the balloon as measured by ground-based cinetheodolites and balloon-borne sensors. Included in the data are horizontal and vertical trajectories, maximum displacement, pitch and roll angles, ground speed, and acceleration.
| Author | : |
| Publisher | : |
| Total Pages | : 280 |
| Release | : |
| Genre | : Aeronautical instruments |
| ISBN | : |
Download Instrumentation Papers Book in PDF, Epub and Kindle
| Author | : Andrew S. Carten (Jr.) |
| Publisher | : |
| Total Pages | : 618 |
| Release | : 1974 |
| Genre | : Balloons |
| ISBN | : |
Download Proceedings, Eighth AFCRL Scientific Balloon Symposium, 30 September to 3 October 1974 Book in PDF, Epub and Kindle
This publication contains preprints of papers presented at the Eighth AFCRL Scientific Balloon Symposium, 30 September to 3 October 1974, held at Hyannis, Mass. The papers are grouped in accordance with the five symposium sessions: powered balloons, tethered balloons, free balloon technology, balloon-borne experiments, and special applications
| Author | : Catherine L. Rice |
| Publisher | : |
| Total Pages | : 546 |
| Release | : 1979 |
| Genre | : Balloons |
| ISBN | : |
Download Proceedings, Tenth AFGL Scientific Balloon Symposium, 21 August to 23 August 1978 Book in PDF, Epub and Kindle
This publication contains the Keynote Address and twenty-nine papers presented at the Tenth AFGL Scientific Balloon Symposium, 21-23 August 1978, at Portsmouth, NH. The five sessions were entitled: Balloon Technology - Progress and Problems; Manned Flights; Stratospheric Measurements; Airship Design Concepts; and Methods and Models.
| Author | : United States. Superintendent of Documents |
| Publisher | : |
| Total Pages | : 1252 |
| Release | : 1973 |
| Genre | : Government publications |
| ISBN | : |
Download Monthly Catalog, United States Public Documents Book in PDF, Epub and Kindle
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.
| Author | : |
| Publisher | : |
| Total Pages | : 1386 |
| Release | : |
| Genre | : Government publications |
| ISBN | : |
Download Monthly Catalog of United States Government Publications Book in PDF, Epub and Kindle
