fan turbine 16 are discharged through the chuted mixer 30 where they are comingled with the air from bypass duct 26 in the known manner the engine of fig1 is also shown to include an augmenter indicated generally at 40 the augmenter is shown to include at least one fuel injector 42 disposed upstream of a flameholder 44 fuel injector 42 injects fuel into the gas stream upstream of the flameholder the fuel becoming carbureted by the time it reaches the flameholder 44 where it is ignited and stabilized the gases of combustion then pass to and are discharged from nozzle 46 to produce a propulsive force to the left in fig1 referring now to fig2 and 3 there is depicted therein an enlarged view of the flameholder and nozzle structure of fig1 it will be noted that a double annular flow path is shown with a first duct 46 defined by nacelle 28 and chuted mixer 30 which serves to pass a limited portion of the bypass duct 26 in fig1 flow around the mixer for purposes not relevant to the present discussion the inner annular flow path 48 carrying the carbureted gas stream to the flameholder 44 is defined by the rigid mixer wall 50 and a central plug 52 fig1 as best shown in fig3 the mixer is of the known 34 daisy 34 or chuted type which comingles alternating streams of core engine and fan gases 48.