Category:BOR-4

**BOR-4**
	series of subscale spaceplanes used to test heat shield technologies for the Soviet space program
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Instance of	vehicle model;
Subclass of	spaceplane (scale model); test article;
Part of	Spiral programme; Buran programme;
Country of origin	Soviet Union;
Manufacturer	NPO Molniya;
First flight	5 December 1980;
Significant event	rocket launch (Kapustin Yar, sub-orbital spaceflight, 1980); rocket launch (Kapustin Yar, Kosmos-1374, 1982); rocket launch (Kapustin Yar, Kosmos-1445, 1983); rocket launch (Kapustin Yar, Kosmos-1517, 1983); rocket launch (Kapustin Yar, Kosmos-1614, 1984);
Mass	1,450 kg;
Length	2.8 m;
Followed by	BOR-5;
Authority file
	Q2877361;
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English: The BOR-4 was a series of aerodynamic test vehicles in the Shuttle Buran program. They were subscale models of the Mikoyan-Gurevich MiG-105 Spiral spaceplane, and tested heat shield tiles and reinforced carbon-carbon for the Buran program.