McCormick F-12 series
1 model in this series
McCormick International F-12 series: the I-12 G (1937-1939) with a four-cylinder petrol engine, 1,853 cm³ displacement, 15 hp/11 kW output and a weight of 1,850 kg
The F-12 series belongs to the generation of early row-crop tractors with a narrow, tall-built design that, in the 1930s, marked the shift from horse-drawn teams to motorised field work on smaller and medium farms. The I-12 G continues this design with a classic tricycle front axle.
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The I-12 G has a four-cylinder petrol engine with water-circulation cooling and 1,853 cm³ displacement, producing 15 hp, or 11 kW, at a rated speed of 1,400 rpm. At 1,850 kg, with a 1,500 mm wheelbase, a length of 2,520 mm and a width of 1,340 mm against a height of only 1,360 mm, it shows the narrow, tall-legged build typical of this pre-war generation for row-crop work.
With a top speed of 18 km/h, the I-12 G falls under Germany's driving licence category T. A petrol engine with water-circulation cooling and no circulation pump was, for its time, a simple but low-maintenance solution relying on thermosiphon action rather than a mechanically driven cooling system.
When buying such an old petrol tractor, the cylinder head gasket, the condition of the pump-less cooling system and the ignition wiring are especially important, since parts of this age are often reproductions or improvised. Frame cracks and the condition of the narrow front axle also deserve a close inspection on this tall-built design.
Sources: SpecCodex-Register: Kennwerte des Modells I-12 G, McCormick
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