FIELD: transport.
SUBSTANCE: invention relates to vehicles. Assembly propulsor contains truncated-conical structure including at least one flexible part having truncated-conical surface extended from its narrower base to wider base along truncated cone axis. The mentioned truncated-conical part is capable for reversible deformation changing its form from spring-loaded circular corresponding to normal state of truncated cone the side elevation view of which is circular to deformed truncated cone the side elevation view of which is not circular. This contains truncated-conical structure can serve as a rest for at least one keying to surface part capable to change its configuration between circular wheel-shaped when its side elevation view is circular and deformed configuration when its side elevation view is not circular and where area of this keying to surface part contacting with travel surface is increased.
EFFECT: improved cross country capacity.
39 cl, 15 dwg
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