Category:Research balloons

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Subcategories

This category has only the following subcategory.

O

[×] Osoaviakhim-1 balloon‎ (18 F)

Pages in category "Research balloons"

The following 2 pages are in this category, out of 2 total.

R

Research balloon

С

Стратостаты

Media in category "Research balloons"

The following 37 files are in this category, out of 37 total.

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Balloon aircraft