Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
CNABS; DWPI; CN/EP/WO/USTXT: blade, vane, turbine, airfoil, tip, shroud, coolant, flow, direct, guide