The present invention provides a means for determining authenticity of a combination of files which are downloaded to a mobile station, and which are related to one another. A flywheel generator system is operatively mounted on the engine. The platform injection cooling air ejection slot is connected to the impingement cavity and provides cooling for the platform and injection of cooling air to break down the formation of the vortex on the vane endwall region. A processor-based system having a focused cooling duct.