Rolls-royce Power Engineering Plc

Andrew Thomas Napper

Keith C Sadler

Sean Alan Walters

Ivor Saltman

Keith Sadler

The present invention provides an airfoil for a first stage turbine blade having an external surface with first and second sides. The external surface extends spanwise between a hub and a tip and streamwise between a leading edge and a trailing edge of the airfoil. The external surface includes a contour substantially defined by Table 1 as listed in the specification.

First stage turbine airfoil

The present invention provides an airfoil for a first stage nozzle guide vane having an external surface with first and second sides. The external surface extends spanwise between a hub and a tip and streamwise between a leading edge and a trailing edge of the airfoil. The external surface includes a contour substantially defined by Table 1 as listed in the specification.

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Bristol, United Kingdom

Andrew Thomas Napper