Photo of Douglas DC-8 producing contrails at a biofuel test

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Source page:	http://commons.wikimedia.org/wiki/File:Douglas_DC-8_producing_contrails_at_a_biofuel_test.jpg

Summaryedit

Description	English: Orginal NASA Text: ACCESS Biofuels Flight Tests Puffy white exhaust contrails stream from the engines of NASA's DC-8 flying laboratory in this photo taken from an HU-25 Falcon flying in trail about 300 feet behind the DC-8. Instruments on the Falcon were measuring the chemical contents of the exhaust contrails at varying distances from the DC-8, which was using both standard JP8 jet fuel and a mix of JP-8 and a plant-derived biofuel. Deutsch: Kondesstreifen entstehen hinter einer DC-8 die JP-8 Treibstoff und ene Mischung aus JP-8 und Dioful verwendet. Die Aufnahme entstand während der Abgasmessung mit einem Messflugzeug.
Date	28 February 2013
Source	https://www.nasa.gov/centers/dryden/multimedia/imagegallery/DC-8/DSCN0215.html
Author	NASA / Eddie Winstead

Licensingedit

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content even though its photo gallery FAQ states that all of the images in the photo gallery are in the public domain.

Photo's description:

Orginal NASA Text: ACCESS Biofuels Flight Tests Puffy white exhaust contrails stream from the engines of NASA's DC-8 flying laboratory in this photo taken from an HU-25 Falcon flying in trail about 300 feet behind the DC-8. Instruments on the Falcon were measuring the chemical contents of the exhaust contrails at varying distances from the DC-8, which was using both standard JP8 jet fuel and a mix of JP-8 and a plant-derived biofuel. Deutsch: Kondesstreifen entstehen hinter einer DC-8 die JP-8 Treibstoff und ene Mischung aus JP-8 und Dioful verwendet. Die Aufnahme entstand während der Abgasmessung mit einem Messflugzeug.

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EXIF data:
File name	douglas_dc-8_producing_contrails_at_a_biofuel_test.jpg
Size, Mbytes	2.91428515625
Mime type	image/jpeg
Camera manufacturer	NIKON
Camera model	COOLPIX S6400
Orientation of image	1
Image resolution in width direction	300
Image resolution in height direction	300
Unit of X and Y resolution	2
Exposure time	10/2500 sec (0.004)
F number	f / 6.5
Exposure program	2
ISO speed rating	125
Compressed bits per pixel	2
Exif version	0230
Lens focal length	54 mm
Date and time original image was generated	2013:02:28 05:12:33
Date and time image was made digital data	2013:02:28 05:12:33
Meaning of each component
Exposure bias	0
Maximum lens aperture	3.3
Metering mode	5
User comments
Supported Flashpix version	0100
Color space information	1
Exif image width	4608
Exif image length	2592
InteroperabilityOffset	58116
Scene type
Digital zoom ratio	0
Focal length in 35 mm film	303 mm
Gain control	1
Interoperability index	R98
Interoperability version	0100
Software used	COOLPIX S6400V1.0

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