The cylindrical vehicles, about 8 feet (2.4 meters) long and 10 inches (25 cm) in diameter, would be released from boreholes in the ice or from vessels at sea.

An undisclosed carrier aircraft (by the looks of it an Aero L-29 Delfín) took the thing to an altitude of 12,000 feet (3,657 meters), from where it was dropped and the rocket's engine sprung into ...

The cylindrical vehicles, about 8 feet (2.4 meters) long and 10 inches (25 cm) in diameter, would be released from boreholes in the ice or from vessels at sea.