Сикорски S-42 (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Сикорски S-42" in Bulgarian language version.

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Global rank Bulgarian rank

1web.archive.org

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1sikorskyarchives.com

low place

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1thisdayinaviation.com

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sikorskyarchives.com

The S-42, The Development and Characteristics of a Long-Range Flying Boat A Speech to the Royal Aeronautical Society, London, On 15 November 1934 by Igor Sikorsky // Sikorsky Aircraft. Архивиран от оригинала на 2015-12-08. Посетен на 2024-04-25.

thisdayinaviation.com

Swopes, Brian W. 30 March 1934 // March 30, 2019. Посетен на 24 March 2020.

web.archive.org

The S-42, The Development and Characteristics of a Long-Range Flying Boat A Speech to the Royal Aeronautical Society, London, On 15 November 1934 by Igor Sikorsky // Sikorsky Aircraft. Архивиран от оригинала на 2015-12-08. Посетен на 2024-04-25.