File:Early liquid-propellant rocket models.png

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Summary

Description	English: Model of early liquid-propellant rocket engines
Date	1966
Source	in Aerospace Rocketry
Author	NASA John H. Glenn Research Center at Lewis Field

Licensing

	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. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:32, 5 May 2023		1,953 × 1,545 (270 KB)	WMrapids	Uploaded a work by NASA John H. Glenn Research Center at Lewis Field from [https://ntrs.nasa.gov/api/citations/19680016463/downloads/19680016463.pdf\|Exploring in Aerospace Rocketry] with UploadWizard

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Pedro Paulet

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Horizontal resolution	56.69 dpc
Vertical resolution	56.69 dpc