公开(公告)号：US11708796B2

公开(公告)日：2023-07-25

申请号：US17853103

申请日：2022-06-29

Applicant: ROLLS-ROYCE plc

Inventor： Peter Swann ,  David M Beaven ,  Craig W Bemment ,  Alastair G Hobday ,  Benjamin J Keeler ,  Christopher P Madden ,  Martin K Yates

IPC: F02C9/00 ,  F02C9/28

CPC classification number: F02C9/28 ,  F05D2260/80 ,  F05D2270/303 ,  F05D2270/304 ,  F05D2270/708 ,  F23N2221/10

Abstract: The present application discloses a method of determining one or more fuel characteristics of an aviation fuel used for powering a gas turbine engine of an aircraft. The method comprises: determining one or more performance parameters of the gas turbine engine during a first time period of operation of the gas turbine engine; and determining one or more fuel characteristics of the fuel based on the one or more performance parameters. A method of operating an aircraft, a fuel characteristic determination system, and an aircraft are also disclosed.