Patent Number: 7,762,125

Title: Method for monitoring thrust produced by gas turbine engines

Abstract: A method for providing an indication of thrust available from a gas turbine engine, the method comprises measuring fan aerodynamic speed to produce an actual fan aerodynamic speed measurement, determining a difference between the actual fan aerodynamic speed measurement and an expected fan aerodynamic speed measurement, and if the difference is less than a predetermined threshold value, indicating that sufficient thrust is available.

Inventors: Howlett; Matthew I. (Bristol, GB), Cordo; Charmaine H. (Bristol, GB), Sollars; Karen S. (Varese, IT)

Assignee: Rolls-Royce PLC

International Classification: G01M 15/14 (20060101)

Expiration Date: 7/27/12018