A German agricultural tractor manufactured by Heinrich Lanz AG, founded in Mannheim in 1859. Since 1921, the company’s hallmark has been the production of reliable, easy-to-build, and easy-to-operate agricultural tractors, commonly known as the Lanz Bulldog. From 1934 to 1944, one of the two basic models was the Lanz Bulldog HR 7. This vehicle in the MTW GRYF collection is the first version of the tractor, designated D8500. It is powered by a single-cylinder, two-stroke, medium-compression diesel engine with an output of 35 hp at 540 rpm, equipped with a hot bulb, which must be heated with a blowtorch before starting the engine. Displacement is 10.338 liters. The HR 7 tractor’s curb weight is 3350 kg, and its maximum speed is 6 km/h.
Based on solutions copied from its twin model, the Lanz Bulldog HR 8, the Ursus C-45 tractor with a 45 HP engine was produced in Poland from 1947.
