type: GL
country of origin: Czechoslovakia
manufacturer: Vítkovické horní a hutní těžířstvo (under licence)
number of cylinders: 1
revolutions/min: 1200–1600
dimensions: 1 300 mm x 1 000 mm x 1 000 mm
fuel consumption: 185–210 gr/hp/h
weight: 150 kg
year of production: unknown

In the interwar period, the company Vítkovické horní a hutní těžířstvo manufactured stationary engines under licence from German engineering companies. The GL stationary engine was called "Vítkovice Güldner-Lanova" small diesel engine. The company produced three types of the engine - GL7, GL10 and GL14. The engines were all equipped with one cylinder, and they varied in the number of revolutions per minute. They could be placed on a cart, sleigh, or attached to a construction. The engine was started by a crank handle.