FM 1-506 Fundamentals of Aircraft Power Plants ... - Survival Books
FM 1-506 Fundamentals of Aircraft Power Plants ... - Survival Books
FM 1-506 Fundamentals of Aircraft Power Plants ... - Survival Books
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WWW.SURVIVALEBOOKS.COM<strong>FM</strong> 1-<strong>506</strong>join and mix with the burned gases aft <strong>of</strong> the burners tocool the hot gases just before they enter the turbines.All stage 1 and 2 airfoils in the GE T-701 engine areinternally cooled by means <strong>of</strong> compressor discharge air(Figures 7-2, 7-3). The stage 1 nozzle leading edge isconection- and film-cooled with the air exiting througha shower-head series <strong>of</strong> holes in the leading edge. Aft <strong>of</strong>the leading edge, film-cooling air exits through convexand concave side gill holes and trailing edge slots. Coolingair for the stage 2 nozzle is bled from the centrifugalimpeller exit and piped back through the midframe toenter the stage 2 nozzle. It cools by internal convection,7-2
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