US lessor CIT Aerospace has selected the Rolls-Royce Trent 700 engine to power a batch of 13 Airbus A330 twinjets.
Rolls-Royce confirms the agreement to take the powerplants although it gives few details about the pact.
Airbus's latest backlog data, to the end of April, shows that CIT has orders for 13 A330s outstanding - comprising two -200s and 11 -300s.
Ten of these are A330-300s ordered by the leasing company in July last year. Under this agreement some of the aircraft delivered will be a higher-weight 240t version of the jet, for which CIT became an initial customer. At the time it did not disclose an engine selection.
"The Trent family of engines has proven to be reliable in offering high fuel and operating efficiency, and it remains in high demand among our global customer base," says CIT Transportation Finance chief Jeff Knittel.
CIT ordered another 10 Airbus A350-900s in January this year. Rolls-Royce says the lessor's engine order also covers supply of the Trent XWB for these aircraft - the powerplant is the only one available for the A350.
The lessor has ordered 15 A350-900s in total as well as 51 A330s.
Rolls-Royce has not given a value for the engine deal. But civil large engines president Eric Schulz says: "This order underscores the market-leading position of the Trent 700.
"[It] reflects our ability to deliver a Trent XWB engine that has already proven itself in test flights to be the most efficient large aero engine flying today."