FS2004 Monocoupe 125. Available in three color schemes. The 125 model file is slightly different from the 110 and 90 hp versions. Updated for FS2004 with adjusted aerodynamics, pilot figure and variable pitch prop control. The Monocoupe was a very popular light general aviation two seater back in the 1930s. The 125 hp version has limited navigational equipment. By Tom Miller.