Soubor:Junkers A 50 3-view NACA Aircraft Circular No.118.jpg

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Popis	English: Junkers A 50 3-view drawing from NACA Aircraft Circular No.118
Datum	1. června 1930
Zdroj	https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930090396.pdf
Autor	NACA Aircraft Circular

	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.)
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