SOVIET HYPERSONIC TECHNOLOGY.
KHOLOD [COLD] FLYING LABORATORY MODEL.
Wooden model, 16 inches tall, on wooden stand 4 inches wide, unknown manufacturer, 1990s.
The main component of Kholod was a hypersonic ramjet engine capable of accelerating to several Mach an an altitude of 12-20 miles. This rocket was the Soviet Union's first realistic test of hypersonic technology, and was not launched until 1991.