The Mikoyan-Gurevich MiG-105, part of the Spiral program, was a crewed test vehicle to explore low-speed handling and landing.

It was a visible result of a Soviet project to create an orbital spaceplane.

The program was also known as the Experimental Passenger Orbital Aircraft (EPOS).

The MiG test vehicle itself still exists and is currently on display at the Monino Air Force Museum in Russia.

[1] Another spacecraft to use the Spiral design was the БОР (Russian: Беспилотный Орбитальный Ракетоплан, Bespilotnyi Orbital'nyi Raketoplan, "Unpiloted Orbital Rocketplane") series, uncrewed sub-scale reentry test vehicles.