13 6X6 WHEELED ARTICULATED VEHICLES, LIGHT

	Flex Frame Vehicle from ATAC, Army Tank Automotive Center now TACOM, in 1961-62 had double coil spring joint and hydraulic drive to each wheel. No restriction was provided in roll. Pitch and yaw were limited. Bekker at the same time built 6 wheeled non driven prototypes fitted with an elastic frame that allowed restricted freedom in pitch and roll. Pict from Journal of Terramechnics, 1970, Vol7, N°1, Pergamon Press, Elsevier
	Flex-Frame Vehicle showing coil springs between the two bodies. Pict from Journal of Terramechnics, 1970, Vol7, N°1, Pergamon Press, Elsevier
	Molab of General Motors cross-country 6x6 lunar articulated scale model vehicle in the 60s. The full-size prototype by GM for Boeing was under NASA contract. The well-known M. G. Bekker was the main designer. Pict from Journal of Terramechanics, 1974, Vol 11, N° 2, Pergamon Press, Elsevier.
	US003235020-001 patent of Bekker, 1966. Vehicle with a flexible frame for moving on the moon. Test of Bekker 6x6 lunar vehicle in the 60s. The flexible chassis allowed to getting up or down large obstacles. Pict from Journal of Terramechanics, 1974, Vol 11, N° 2, Pergamon Press, Elsevier. Off-road locomotion