Comments On Air To Air Visibility At High Altitude PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Comments On Air To Air Visibility At High Altitude PDF full book. Access full book title Comments On Air To Air Visibility At High Altitude.
Author | : |
Publisher | : |
Total Pages | : 14 |
Release | : 1954 |
Genre | : |
ISBN | : |
Download Comments on Air to Air Visibility at High Altitude Book in PDF, ePub and Kindle
Aviators flying at high altitude report difficulty in sighting other aircraft. The factors causing this poor air-to air visibility are discussed, particularly the phenomenon of 'empty field' myopia. It is concluded that the correction of the myopia may moderately improve air-to-air vision. An experiment for quantitatively determining the improvement is proposed, and some practical methods of correcting the empty field myopia are suggested.
Author | : |
Publisher | : |
Total Pages | : 368 |
Release | : 1979 |
Genre | : Science |
ISBN | : |
Download Technical Abstract Bulletin Book in PDF, ePub and Kindle
Author | : John D. Coakley |
Publisher | : |
Total Pages | : 60 |
Release | : 1948 |
Genre | : |
ISBN | : |
Download Estimates of Visibility from High Altitude Aircraft Book in PDF, ePub and Kindle
The distance at which an object becomes visible depends upon such factors as brightness contrast, target size, brightness level, and atmospheric attenuation. Numerical values are selected to represent the influence of these variables under the conditions of high altitude flight. Visibility is examined under the following conditions: (a) Altitude of observer--sea level, 50,000, 100,000, and 200,000 feet. (b) Altitude of target--from sea level to approximately 300,000 feet (60 miles). (c) Background brightness conditions--from 1 to 32 footlamberts. (d) Contrast ratio between target and background--for values of 1, 5, 10, and 100. The computation of visibility is based on visual acuity data corrected for the effect of atmospheric attenuation at various altitudes. A round object with a diameter of 10 feet may be used as a representative target. (Author).
Author | : William C. Malm |
Publisher | : |
Total Pages | : 316 |
Release | : 1980 |
Genre | : Atmospheric radiation |
ISBN | : |
Download A Review of Instrument-measuring Visibility-related Variables Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 28 |
Release | : 1969-05 |
Genre | : Research |
ISBN | : |
Download Research Review Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 100 |
Release | : 1994 |
Genre | : Military art and science |
ISBN | : |
Download Quarterly Review of Military Literature Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1598 |
Release | : 1957 |
Genre | : |
ISBN | : |
Download Airman's Guide Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1628 |
Release | : 1945 |
Genre | : Military art and science |
ISBN | : |
Download Review of Current Military Literature Book in PDF, ePub and Kindle
Author | : United States. Congress. Senate. Committee on Interstate and Foreign Commerce |
Publisher | : |
Total Pages | : 1308 |
Release | : 1960 |
Genre | : Aeronautics |
ISBN | : |
Download Review of the Federal Aviation Act Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 204 |
Release | : 1980 |
Genre | : Environmental policy |
ISBN | : |
Download Environment Midwest Book in PDF, ePub and Kindle