The Mecklenburg Class G 4.2 operated by the Grand Duchy of Mecklenburg Friedrich-Franz Railway was a goods train, steam locomotive with a compound engine.
It was procured between 1901 and 1905 from Henschel and Linke based on the Prussian G 4.2 prototype.
A total of five machines were built for Mecklenburg.
The vehicles were equipped with a Hartmann steam brake and had inside Allan valve gear.
The engines were able to haul a 500 tonnes (490 long tons; 550 short tons) train on an incline of 1:300 at 30 km/h (19 mph).