PURPOSE: To constitute an optional layout by connecting the output shaft of a gas turbine with the drive shaft of a drive subject device while altering their direction without interposing a bevel gear reduction gear.

CONSTITUTION: A turbine 5 for driving compressor and a turbine 8 for outputting are installed while altering respective rotary shafts separately at a proper distance and a compressor drive shaft 10 which is the rotary shaft of the turbine 5 for driving compressor is arranged along the installation base plane L of the gas turbine 1. The output shaft 9 which is the rotary shaft of the turbine 8 for outputting is installed so as to position non-linearly for the compressor drive shaft 10 and the jet stream passage of a high temerature and high pressure gas is formed in a curved line between both turbines 5, 8.