Mining: Tracked Tractor Caterpillar

Model	Caterpillar track length on ground level
D9T	3474 mm - 11.4 ft.
D9R	3470 mm - 11.4 ft.
D9N	3470 mm - 11.4 ft.
D9L	3550 mm - 11.6 ft.
D9H	3350 mm - 11 ft.
D11T	3855 mm - 12.7 ft.
D11R	4440 mm - 14.6 ft.
D11N	4440 mm - 14.6 ft.
D10T	3855 mm - 12.7 ft.
D10R	3880 mm - 12.7 ft.
D10N	3870 mm - 12.7 ft.