Combined cycle pulse detonation turbine engine

A turbofan engine (200) includes a pulse detonation system (202) to create a temperature rise and a pressure rise within the engine to generate thrust from the engine. The system includes a pulse detonation augmentor (240) including a shock tube sub-system (254). The shock tube sub-system includes a plurality of shock tubes which mix air and fuel introduced to the pulse detonation augmentor and detonate the mixture. The detonation creates hot combustion gases which are directed from the engine to produce thrust for the engine. Alternatively, the system includes a pulse detonation augmentation system (242) that replaces a core engine of a turbo-fan engine.