David Brown produced its 30 farm tractor model From 1953 Until 1957 in United states with a Open operator station cabin. Talking dimensions and weight, this model weighs 3,900 lbs or 1769 kg has , 116.5 inches [295 cm] of length while maintaining a wheelbase of 74.8 inches [189 cm]. This tractor can fit ag tires of 6.00-19 front and 6.00-19 back . This David Brown 30 is powerd by a diesel engine it has 165.1 ci or 2.7 L 4 cylinders ,it can produce 41 hp or 30.6 kW at 2300 (rpm), the fuel tank capacity is 12.7 gal or 48.1 L. This machine has 4x2 2WD wheel drive system,6 forward and 2 reverse transmission system.