Акс:SPCA 40 T flying NACA Aircraft Circular No.143.jpg

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Хулоса

Тавсифот	English: SPCA 40 T photo from NACA Aircraft Circular No.143
Сана	1 Апрел 1931
Манбаъ	https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930090432.pdf
Муаллиф	NACA Aircraft Circular

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