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File:Contrail 1921.jpg

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Summary

Description
English: "Cloud Formation from Supercharged Plane": passage from Monthly Weather Review describing an early instance of contrail formation from a supercharged aircraft. This may be the first known description of such phenomena.
Date
Source Monthly Weather Review (ftp://ftp.library.noaa.gov/docs.lib/htdocs/rescue/mwr/049/mwr-049-07-0412c.pdf)
Author B. M. Varney
Permission
(Reusing this file)
Public domain, published before 1923

Licensing

Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Contrail_1921.jpg

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July 1921Gregorian

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40652b4eb093bf78d00dd71276ec7203a1e090f2

123,231 byte

653 pixel

582 pixel

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Date/TimeThumbnailDimensionsUserComment
current14:48, 18 January 2008Thumbnail for version as of 14:48, 18 January 2008582 × 653 (120 KB)Lon Abirisain{{Information |Description= First known description of a persistent contrail / Primera descripción conocida de una estela persistente |Source= http://docs.lib.noaa.gov/rescue/mwr/049/mwr-049-07-0412c.pdf |Date= original is from 1921 |Author= Varney B.M.

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