https://www.youtube.com/watch?v=6cKcpl-MDL0

The Soviet Union’s OKBs were not just responsible for aircraft designs. From the earliest days of the Soviet Union the big names produced other vehicles. Amongst the most successful of these were Andrei Tupolev’s ‘aerosans’; sleds powered by aero engines that were used for civilian and military tasks from the Revolution to the fall of communism. This video takes a brief look at Tupolev’s most successful aerosans – the ANT IV and the A-3.