File:Protoplasta tunelu aerodynamicznego z silnika od Antonov An-2.JPG

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Protoplasta_tunelu_aerodynamicznego_z_silnika_od_Antonov_An-2.JPG ‎(795 × 565 pixels, file size: 76 KB, MIME type: image/jpeg)

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Summary[edit]

Photographer
Sekcja Spadochronowa Aeroklubu Gliwickiego
Location
InfoField
Airfield EPKR in Krosno, Poland
Aircraft type
InfoField
Parachuting
Type
InfoField
Photograph
Description
Polski: W ośrodku spadochronowym w Krośnie z silnika An-2 został wykonany protoplasta tunelu aerodynamicznego. Śmigło zamontowane poziomo dawało nadmuch powietrza do rury, która pod kątem prostym kierowała powietrze. Nad rurą był zamontowany orczyk, do którego podczepiał się skoczek i wykorzystywał strugi powietrza do nauki spiral, salt czyli ćwiczył akrobację indywidualną. Nie był to udany model i nie cieszył się popularnością. Przy śmigle członkowie sekcji spadochronowej Aeroklubu Gliwickiego
Date between 1970 and 1979
date QS:P571,+1970-00-00T00:00:00Z/8,P1319,+1970-00-00T00:00:00Z/9,P1326,+1979-00-00T00:00:00Z/9
Source Sekcja Spadochronowa Aeroklubu Gliwickiego

Licensing[edit]

Public domain
This photograph is in the public domain because according to the Art. 3 of copyright law of March 29, 1926 of the Republic of Poland and Art. 2 of copyright law of July 10, 1952 of the People's Republic of Poland, all photographs by Polish photographers (or published for the first time in Poland or simultaneously in Poland and abroad) published without a clear copyright notice before the law was changed on May 23, 1994 are assumed to be in the public domain in Poland.

This work is in the public domain in the United States because it meets three requirements:

  1. it was first published outside the United States (and not published in the U.S. within 30 days),
  2. it was first published before 1 March 1989 without copyright notice or before 1964 without copyright renewal or before the source country established copyright relations with the United States,
  3. it was in the public domain in its home country (Poland) on the URAA date (1 January 1996).
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Date/TimeThumbnailDimensionsUserComment
current05:57, 4 October 2016Thumbnail for version as of 05:57, 4 October 2016795 × 565 (76 KB)Wlodek k1 (talk | contribs)Retusz zdjęcia
20:01, 9 February 2016Thumbnail for version as of 20:01, 9 February 2016799 × 583 (40 KB)Wlodek k1 (talk | contribs)User created page with UploadWizard

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