REVERSE-FLOW GAS TURBINE ENGINE

A gas turbine engine (10) has a first spool (20) having a low pressure compressor section (22) disposed forward of an air inlet (11) along a direction of travel of the engine (10), and a low pressure turbine section (21) disposed forward of the low pressure compressor section (22) and drivingly engaged thereto. A second spool (40) has a high pressure compressor section (42) disposed forward of the low pressure compressor section (22), and a high pressure turbine section (41) disposed forward of the high pressure compressor section (42) and drivingly engaged thereto. The high pressure turbine section (41) is disposed aft of the low pressure turbine section (21). An output drive shaft (24) drivingly engages the low pressure turbine section (21) and extends forwardly therefrom to drive a rotatable load (16). A method of operating a gas turbine engine (10) is also discussed.