REVERSE CORE GEAR TURBOFAN

摘要

A method of operating a gas turbine engine comprising the steps of:
(a) operating a turbine section having blades with a radially outermost extent, and a flow diverter that is operable to divert air radially inwardly of the radially outermost extent of the turbine blades, or allow air to pass radially outwardly of the radially outermost extent of the turbine blades; and
(b) positioning said flow diverter to increase or decrease the amount of gas passing across that turbine section to increase or decrease a power output by said turbine section.